diff --git a/startop/scripts/app_startup/analyze_metrics.py b/startop/scripts/app_startup/analyze_metrics.py
new file mode 100755
index 0000000..d74d6f6
--- /dev/null
+++ b/startop/scripts/app_startup/analyze_metrics.py
@@ -0,0 +1,457 @@
+#!/usr/bin/env python3
+#
+# Copyright 2018, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+Perform statistical analysis on measurements produced by app_startup_runner.py
+
+Install:
+$> sudo apt-get install python3-scipy
+
+Usage:
+$> ./analyze_metrics.py <filename.csv> [<filename2.csv> ...]
+$> ./analyze_metrics.py --help
+"""
+
+import argparse
+import csv
+import itertools
+import os
+import subprocess
+import sys
+import tempfile
+from typing import Any, List, Dict, Iterable, TextIO, Tuple
+
+from scipy import stats as sc
+import numpy as np
+
+
+# These CSV columns are considered labels. Everything after them in the same row are metrics.
+_LABEL_COLUMNS=['packages', 'readaheads', 'compiler_filters']
+# The metric series with the 'cold' readahead is the baseline.
+# All others (warm, jit, etc) are the potential improvements.
+
+#fixme: this should probably be an option
+_BASELINE=('readaheads', 'cold')
+# ignore this for some statistic calculations
+_IGNORE_PAIR=('readaheads', 'warm')
+_PLOT_SUBKEY='readaheads'
+_PLOT_GROUPKEY='packages'
+_PLOT_DATA_INDEX = 0
+_DELTA=50
+_DELTA2=100
+_PVALUE_THRESHOLD=0.10
+_debug = False  # See -d/--debug flag.
+
+def parse_options(argv: List[str] = None):
+  """Parse command line arguments and return an argparse Namespace object."""
+  parser = argparse.ArgumentParser(description="Perform statistical analysis on measurements produced by app_start_runner.py.")
+  parser.add_argument('input_files', metavar='file.csv', nargs='+', help='CSV file produced by app_startup_runner.py')
+
+  parser.add_argument('-d', '--debug', dest='debug', action='store_true', help='Add extra debugging output')
+  parser.add_argument('-os', '--output-samples', dest='output_samples', default='/dev/null', action='store', help='Store CSV for per-sample data')
+  parser.add_argument('-oc', '--output-comparable', dest='output_comparable', default='/dev/null', action='store', help='Output CSV for comparable against baseline')
+  parser.add_argument('-ocs', '--output-comparable-significant', dest='output_comparable_significant', default='/dev/null', action='store', help='Output CSV for comparable against baseline (significant only)')
+  parser.add_argument('-pt', '--pvalue-threshold', dest='pvalue_threshold', type=float, default=_PVALUE_THRESHOLD, action='store')
+  parser.add_argument('-dt', '--delta-threshold', dest='delta_threshold', type=int, default=_DELTA, action='store')
+
+  return parser.parse_args(argv)
+
+def _debug_print(*args, **kwargs):
+  """Print the args to sys.stderr if the --debug/-d flag was passed in."""
+  global _debug
+  if _debug:
+    print(*args, **kwargs, file=sys.stderr)
+
+def _expand_gen_repr(args):
+  new_args_list = []
+  for i in args:
+    # detect iterable objects that do not have their own override of __str__
+    if hasattr(i, '__iter__'):
+      to_str = getattr(i, '__str__')
+      if to_str.__objclass__ == object:
+        # the repr for a generator is just type+address, expand it out instead.
+        new_args_list.append([_expand_gen_repr([j])[0] for j in i])
+        continue
+    # normal case: uses the built-in to-string
+    new_args_list.append(i)
+  return new_args_list
+
+def _debug_print_gen(*args, **kwargs):
+  """Like _debug_print but will turn any iterable args into a list."""
+  if not _debug:
+    return
+
+  new_args_list = _expand_gen_repr(args)
+  _debug_print(*new_args_list, **kwargs)
+
+def read_headers(input_file: TextIO) -> Tuple[List[str], List[str]]:
+  _debug_print("read_headers for file: ", input_file.name)
+  csv_reader = csv.reader(input_file)
+
+  label_num_columns = len(_LABEL_COLUMNS)
+
+  try:
+    header = next(csv_reader)
+  except StopIteration:
+    header = None
+  _debug_print('header', header)
+
+  if not header:
+    return (None, None)
+
+  labels = header[0:label_num_columns]
+  data = header[label_num_columns:]
+
+  return (labels, data)
+
+def read_labels_and_data(input_file: TextIO) -> Iterable[Tuple[List[str], List[int]]]:
+  _debug_print("print_analysis for file: ", input_file.name)
+  csv_reader = csv.reader(input_file)
+
+  # Skip the header because it doesn't contain any data.
+  # To get the header see read_headers function.
+  try:
+    header = next(csv_reader)
+  except StopIteration:
+    header = None
+
+  label_num_columns = len(_LABEL_COLUMNS)
+
+  for row in csv_reader:
+    if len(row) > 0 and row[0][0] == ';':
+      _debug_print("skip comment line", row)
+      continue
+
+    labels = row[0:label_num_columns]
+    data = [int(i) for i in row[label_num_columns:]]
+
+#    _debug_print("labels:", labels)
+#    _debug_print("data:", data)
+
+    yield (labels, data)
+
+def group_metrics_by_label(it: Iterable[Tuple[List[str], List[int]]]):
+  prev_labels = None
+  data_2d = []
+
+  for label_list, data_list in it:
+    if prev_labels != label_list:
+      if prev_labels:
+#        _debug_print("grouped labels:", prev_labels, "data_2d:", data_2d)
+        yield (prev_labels, data_2d)
+      data_2d = []
+
+    data_2d.append(data_list)
+    prev_labels = label_list
+
+  if prev_labels:
+#    _debug_print("grouped labels:", prev_labels, "data_2d:", data_2d)
+    yield (prev_labels, data_2d)
+
+def data_to_numpy(it: Iterable[Tuple[List[str], List[List[int]]]]) -> Iterable[Tuple[List[str], Any]]:
+  for label_list, data_2d in it:
+    yield (label_list, np.asarray(data_2d, dtype=int))
+
+def iterate_columns(np_data_2d):
+  for col in range(np_data_2d.shape[1]):
+    col_as_array = np_data_2d[:, col]
+    yield col_as_array
+
+def confidence_interval(np_data_2d, percent=0.95):
+  """
+  Given some data [[a,b,c],[d,e,f,]...]
+
+  We assume the same metric is in the column (e.g. [a,d])
+  and that data in the rows (e.g. [b,e]) are separate metric values.
+
+  We then calculate the CI for each metric individually returning it as a list of tuples.
+  """
+  arr = []
+  for col_2d in iterate_columns(np_data_2d):
+    mean = col_2d.mean()
+    sigma = col_2d.std()
+
+    ci = sc.norm.interval(percent, loc=mean, scale=sigma / np.sqrt(len(col_2d)))
+    arr.append(ci)
+
+  # TODO: This seems to be returning NaN when all the samples have the same exact value
+  # (e.g. stddev=0, which can trivially happen when sample count = 1).
+
+  return arr
+
+def print_analysis(it, label_header: List[str], data_header: List[str], output_samples: str):
+  print(label_header)
+
+  with open(output_samples, "w") as output_file:
+
+    csv_writer = csv.writer(output_file)
+    csv_writer.writerow(label_header + ['mean', 'std', 'confidence_interval_a', 'confidence_interval_b'])
+
+    for label_list, np_data_2d in it:
+      print("**********************")
+      print(label_list)
+      print()
+      print("      ", data_header)
+      # aggregate computation column-wise
+      print("Mean: ", np_data_2d.mean(axis=0))
+      print("Std:  ", np_data_2d.std(axis=0))
+      print("CI95%:", confidence_interval(np_data_2d))
+      print("SEM:  ", stats_standard_error_one(np_data_2d, axis=0))
+
+      #ci = confidence_interval(np_data_2d)[_PLOT_DATA_INDEX]
+      sem = stats_standard_error_one(np_data_2d, axis=0)[_PLOT_DATA_INDEX]
+      mean = np_data_2d.mean(axis=0)[_PLOT_DATA_INDEX]
+
+      ci = (mean - sem, mean + sem)
+
+      csv_writer.writerow(label_list + [mean, np_data_2d.std(axis=0)[_PLOT_DATA_INDEX], ci[0], ci[1]])
+
+def from_file_group_by_labels(input_file):
+  (label_header, data_header) = read_headers(input_file)
+  label_data_iter = read_labels_and_data(input_file)
+  grouped_iter = group_metrics_by_label(label_data_iter)
+  grouped_numpy_iter = data_to_numpy(grouped_iter)
+
+  return grouped_numpy_iter, label_header, data_header
+
+def list_without_index(list, index):
+  return list[:index] + list[index+1:]
+
+def group_by_without_baseline_key(grouped_numpy_iter, label_header):
+  """
+  Data is considered comparable if the only difference is the baseline key
+  (i.e. the readahead is different but the package, compilation filter, etc, are the same).
+
+  Returns iterator that's grouped by the non-baseline labels to an iterator of
+  (label_list, data_2d).
+  """
+  baseline_index = label_header.index(_BASELINE[0])
+
+  def get_label_without_baseline(tpl):
+    label_list, _ = tpl
+    return list_without_index(label_list, baseline_index)
+  # [['pkgname', 'compfilter', 'warm'], [data]]
+  # [['pkgname', 'compfilter', 'cold'], [data2]]
+  # [['pkgname2', 'compfilter', 'warm'], [data3]]
+  #
+  #   ->
+  # ( [['pkgname', 'compfilter', 'warm'], [data]]      # ignore baseline label change.
+  #   [['pkgname', 'compfilter', 'cold'], [data2]] ),  # split here because the pkgname changed.
+  # ( [['pkgname2', 'compfilter', 'warm'], [data3]] )
+  for group_info, it in itertools.groupby(grouped_numpy_iter, key = get_label_without_baseline):
+    yield it
+
+  # TODO: replace this messy manual iteration/grouping with pandas
+
+def iterate_comparable_metrics(without_baseline_iter, label_header):
+  baseline_index = label_header.index(_BASELINE[0])
+  baseline_value = _BASELINE[1]
+
+  _debug_print("iterate comparables")
+
+  def is_baseline_fun(tp):
+    ll, dat = tp
+    return ll[baseline_index] == baseline_value
+
+  # iterating here when everything but the baseline key is the same.
+  for it in without_baseline_iter:
+    it1, it2 = itertools.tee(it)
+
+    # find all the baseline data.
+    baseline_filter_it = filter(is_baseline_fun, it1)
+
+    # find non-baseline data.
+    nonbaseline_filter_it = itertools.filterfalse(is_baseline_fun, it2)
+
+    yield itertools.product(baseline_filter_it, nonbaseline_filter_it)
+
+def stats_standard_error_one(a, axis):
+  a_std = a.std(axis=axis, ddof=0)
+  a_len = a.shape[axis]
+
+  return a_std / np.sqrt(a_len)
+
+def stats_standard_error(a, b, axis):
+  a_std = a.std(axis=axis, ddof=0)
+  b_std = b.std(axis=axis, ddof=0)
+
+  a_len = a.shape[axis]
+  b_len = b.shape[axis]
+
+  temp1 = a_std*a_std/a_len
+  temp2 = b_std*b_std/b_len
+
+  return np.sqrt(temp1 + temp2)
+
+def stats_tvalue(a, b, axis, delta = 0):
+  a_mean = a.mean(axis=axis)
+  b_mean = b.mean(axis=axis)
+
+  return (a_mean - b_mean - delta) / stats_standard_error(a, b, axis)
+
+def stats_pvalue(a, b, axis, delta, left:bool = False):
+  """
+  Single-tailed 2-sample t-test.
+
+  Returns p-value for the null hypothesis: mean(a) - mean(b) >= delta.
+  :param a: numpy 2d array
+  :param b: numpy 2d array
+  :param axis: which axis to do the calculations across
+  :param delta: test value of mean differences
+  :param left: if true then use <= delta instead of >= delta
+  :return: p-value
+  """
+  # implement our own pvalue calculation because the built-in t-test (t,p values)
+  # only offer delta=0 , e.g. m1-m1 ? 0
+  # we are however interested in m1-m2 ? delta
+  t_value = stats_tvalue(a, b, axis, delta)
+
+  # 2-sample degrees of freedom is using the array sizes - 2.
+  dof = a.shape[axis] + b.shape[axis] - 2
+
+  if left:
+    # left tailed test. e.g. m1-m2 <= delta
+    return sc.t.cdf(t_value, dof)
+  else:
+    # right tailed test. e.g. m1-m2 >= delta
+    return sc.t.sf(t_value, dof)
+  # a left+right tailed test is a 2-tail t-test and can be done using ttest_ind for delta=0
+
+def print_comparable_analysis(comparable_metrics_iter, label_header, data_header, output_comparable: str, output_comparable_significant: str):
+  baseline_value = _BASELINE[1]
+  baseline_index = label_header.index(_BASELINE[0])
+
+  old_baseline_label_list = None
+  delta = _DELTA
+  filter_value = _IGNORE_PAIR[1]
+  filter_index = label_header.index(_IGNORE_PAIR[0])
+
+  pvalue_threshold = _PVALUE_THRESHOLD
+  ci_threshold = (1 - _PVALUE_THRESHOLD) * 100.0
+
+  with open(output_comparable, "w") as output_file:
+
+    csv_writer = csv.writer(output_file)
+    csv_writer.writerow(label_header + ['mean', 'mean_diff', 'sem', 'pvalue_2tailed', 'pvalue_gt%d' %(_DELTA), 'pvalue_gt%d' %(_DELTA2)])
+
+    print("------------------------------------------------------------------")
+    print("Comparison against the baseline %s = %s" %(_BASELINE, baseline_value))
+    print("--- Right-tailed t-test checks if the baseline >= current %s by at least %d" %(_BASELINE[0], delta))
+    print()
+
+    global_stats = {'better_than_delta': [], 'better_than_delta_p95': []}
+
+    for nested_it in comparable_metrics_iter:
+      print("************************")
+
+      better_than_delta = []
+      better_than_delta_p95 = []
+
+      saw_baseline_once = False
+
+      for ((baseline_label_list, baseline_np_data_2d), (rest_label_list, rest_np_data_2d)) in nested_it:
+        _debug_print("baseline_label_list:", baseline_label_list)
+        _debug_print("baseline_np_data_2d:", baseline_np_data_2d)
+        _debug_print("rest_label_list:", rest_label_list)
+        _debug_print("rest_np_data_2d:", rest_np_data_2d)
+
+        mean_diff = baseline_np_data_2d.mean(axis=0) - rest_np_data_2d.mean(axis=0)
+        # 2-sample 2-tailed t-test with delta=0
+        # e.g. "Is it true that usually the two sample means are different?"
+        t_statistic, t_pvalue = sc.ttest_ind(baseline_np_data_2d, rest_np_data_2d, axis=0)
+
+        # 2-sample 1-tailed t-test with delta=50
+        # e.g. "Is it true that usually the sample means better than 50ms?"
+        t2 = stats_tvalue(baseline_np_data_2d, rest_np_data_2d, axis=0, delta=delta)
+        p2 = stats_pvalue(baseline_np_data_2d, rest_np_data_2d, axis=0, delta=delta)
+
+        t2_b = stats_tvalue(baseline_np_data_2d, rest_np_data_2d, axis=0, delta=_DELTA2)
+        p2_b = stats_pvalue(baseline_np_data_2d, rest_np_data_2d, axis=0, delta=_DELTA2)
+
+        print("%s vs %s" %(rest_label_list, baseline_value))
+        print("                           ", data_header)
+        print("Mean Difference:           ", mean_diff)
+        print("T-test (2-tailed) != 0:      t=%s, p=%s" %(t_statistic, t_pvalue))
+        print("T-test (right-tailed) >= %d: t=%s, p=%s" %(_DELTA, t2, p2))
+        print("T-test (right-tailed) >= %d: t=%s, p=%s" %(_DELTA2, t2_b, p2_b))
+
+        def write_out_values(label_list, *args):
+          csv_writer.writerow(label_list + [i[_PLOT_DATA_INDEX] for i in args])
+
+        sem = stats_standard_error(baseline_np_data_2d, rest_np_data_2d, axis=0)
+        if saw_baseline_once == False:
+          saw_baseline_once = True
+          base_sem = stats_standard_error_one(baseline_np_data_2d, axis=0)
+          write_out_values(baseline_label_list, baseline_np_data_2d.mean(axis=0), [0], base_sem, [None], [None], [None])
+        write_out_values(rest_label_list, rest_np_data_2d.mean(axis=0), mean_diff, sem, t_pvalue, p2, p2_b)
+
+        # now do the global statistics aggregation
+
+        if rest_label_list[filter_index] == filter_value:
+          continue
+
+        if mean_diff > delta:
+          better_than_delta.append((mean_diff, p2, rest_label_list))
+
+          if p2 <= pvalue_threshold:
+            better_than_delta_p95.append((mean_diff, rest_label_list))
+
+      if better_than_delta:
+        global_stats['better_than_delta'].append(better_than_delta)
+      if better_than_delta_p95:
+        global_stats['better_than_delta_p95'].append(better_than_delta_p95)
+
+    print("------------------------")
+    print("Global statistics:")
+    print("//// Rows with %s=%s are ignored here." %_IGNORE_PAIR)
+    print("- # of results with mean diff better than delta(%d)       = %d" %(delta, len(global_stats['better_than_delta'])))
+    print("    > (meandiff, pvalue, labels)")
+    for i in global_stats['better_than_delta']:
+      print("    > %s" %i)
+    print("- # of results with mean diff better than delta(%d) CI%d%% = %d" %(delta, ci_threshold, len(global_stats['better_than_delta_p95'])))
+    print("    > (meandiff, labels)")
+    for i in global_stats['better_than_delta_p95']:
+      print("    > %s" %i)
+
+def main():
+  global _debug
+  global _DELTA
+  global _PVALUE_THRESHOLD
+
+  opts = parse_options()
+  _debug = opts.debug
+  _debug_print("parsed options: ", opts)
+
+  _PVALUE_THRESHOLD = opts.pvalue_threshold or _PVALUE_THRESHOLD
+
+  for file_name in opts.input_files:
+    with open(file_name, 'r') as input_file:
+      (grouped_numpy_iter, label_header, data_header) = from_file_group_by_labels(input_file)
+      print_analysis(grouped_numpy_iter, label_header, data_header, opts.output_samples)
+
+    with open(file_name, 'r') as input_file:
+      (grouped_numpy_iter, label_header, data_header) = from_file_group_by_labels(input_file)
+      without_baseline_iter = group_by_without_baseline_key(grouped_numpy_iter, label_header)
+      #_debug_print_gen(without_baseline_iter)
+
+      comparable_metrics_iter = iterate_comparable_metrics(without_baseline_iter, label_header)
+      print_comparable_analysis(comparable_metrics_iter, label_header, data_header, opts.output_comparable, opts.output_comparable_significant)
+
+  return 0
+
+
+if __name__ == '__main__':
+  sys.exit(main())
diff --git a/startop/scripts/app_startup/app_startup_runner.py b/startop/scripts/app_startup/app_startup_runner.py
new file mode 100755
index 0000000..25ee6f7
--- /dev/null
+++ b/startop/scripts/app_startup/app_startup_runner.py
@@ -0,0 +1,393 @@
+#!/usr/bin/env python3
+#
+# Copyright 2018, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#
+#
+# Measure application start-up time by launching applications under various combinations.
+# See --help for more details.
+#
+#
+# Sample usage:
+# $> ./app_startup_runner.py -p com.google.android.calculator -r warm -r cold -lc 10  -o out.csv
+# $> ./analyze_metrics.py out.csv
+#
+#
+
+import argparse
+import csv
+import itertools
+import os
+import sys
+import tempfile
+from datetime import timedelta
+from typing import Any, Callable, Iterable, List, NamedTuple, TextIO, Tuple, \
+    TypeVar, Union, Optional
+
+# local import
+DIR = os.path.abspath(os.path.dirname(__file__))
+sys.path.append(os.path.dirname(DIR))
+import lib.cmd_utils as cmd_utils
+import lib.print_utils as print_utils
+from app_startup.run_app_with_prefetch import PrefetchAppRunner
+import app_startup.lib.args_utils as args_utils
+from app_startup.lib.data_frame import DataFrame
+from app_startup.lib.perfetto_trace_collector import PerfettoTraceCollector
+from iorap.compiler import CompilerType
+import iorap.compiler as compiler
+
+# The following command line options participate in the combinatorial generation.
+# All other arguments have a global effect.
+_COMBINATORIAL_OPTIONS = ['package', 'readahead', 'compiler_filter',
+                          'activity', 'trace_duration']
+_TRACING_READAHEADS = ['mlock', 'fadvise']
+_FORWARD_OPTIONS = {'loop_count': '--count'}
+_RUN_SCRIPT = os.path.join(os.path.dirname(os.path.realpath(__file__)),
+                           'run_app_with_prefetch.py')
+
+CollectorPackageInfo = NamedTuple('CollectorPackageInfo',
+                                  [('package', str), ('compiler_filter', str)])
+# by 2; systrace starts up slowly.
+
+_UNLOCK_SCREEN_SCRIPT = os.path.join(
+    os.path.dirname(os.path.realpath(__file__)), 'unlock_screen')
+
+RunCommandArgs = NamedTuple('RunCommandArgs',
+                            [('package', str),
+                             ('readahead', str),
+                             ('activity', Optional[str]),
+                             ('compiler_filter', Optional[str]),
+                             ('timeout', Optional[int]),
+                             ('debug', bool),
+                             ('simulate', bool),
+                             ('input', Optional[str]),
+                             ('trace_duration', Optional[timedelta])])
+
+# This must be the only mutable global variable. All other global variables are constants to avoid magic literals.
+_debug = False  # See -d/--debug flag.
+_DEBUG_FORCE = None  # Ignore -d/--debug if this is not none.
+_PERFETTO_TRACE_DURATION_MS = 5000 # milliseconds
+_PERFETTO_TRACE_DURATION = timedelta(milliseconds=_PERFETTO_TRACE_DURATION_MS)
+
+# Type hinting names.
+T = TypeVar('T')
+NamedTupleMeta = Callable[
+    ..., T]  # approximation of a (S : NamedTuple<T> where S() == T) metatype.
+
+def parse_options(argv: List[str] = None):
+  """Parse command line arguments and return an argparse Namespace object."""
+  parser = argparse.ArgumentParser(description="Run one or more Android "
+                                               "applications under various "
+                                               "settings in order to measure "
+                                               "startup time.")
+  # argparse considers args starting with - and -- optional in --help, even though required=True.
+  # by using a named argument group --help will clearly say that it's required instead of optional.
+  required_named = parser.add_argument_group('required named arguments')
+  required_named.add_argument('-p', '--package', action='append',
+                              dest='packages',
+                              help='package of the application', required=True)
+  required_named.add_argument('-r', '--readahead', action='append',
+                              dest='readaheads',
+                              help='which readahead mode to use',
+                              choices=('warm', 'cold', 'mlock', 'fadvise'),
+                              required=True)
+
+  # optional arguments
+  # use a group here to get the required arguments to appear 'above' the optional arguments in help.
+  optional_named = parser.add_argument_group('optional named arguments')
+  optional_named.add_argument('-c', '--compiler-filter', action='append',
+                              dest='compiler_filters',
+                              help='which compiler filter to use. if omitted it does not enforce the app\'s compiler filter',
+                              choices=('speed', 'speed-profile', 'quicken'))
+  optional_named.add_argument('-s', '--simulate', dest='simulate',
+                              action='store_true',
+                              help='Print which commands will run, but don\'t run the apps')
+  optional_named.add_argument('-d', '--debug', dest='debug',
+                              action='store_true',
+                              help='Add extra debugging output')
+  optional_named.add_argument('-o', '--output', dest='output', action='store',
+                              help='Write CSV output to file.')
+  optional_named.add_argument('-t', '--timeout', dest='timeout', action='store',
+                              type=int, default=10,
+                              help='Timeout after this many seconds when executing a single run.')
+  optional_named.add_argument('-lc', '--loop-count', dest='loop_count',
+                              default=1, type=int, action='store',
+                              help='How many times to loop a single run.')
+  optional_named.add_argument('-in', '--inodes', dest='inodes', type=str,
+                              action='store',
+                              help='Path to inodes file (system/extras/pagecache/pagecache.py -d inodes)')
+  optional_named.add_argument('--compiler-trace-duration-ms',
+                              dest='trace_duration',
+                              type=lambda ms_str: timedelta(milliseconds=int(ms_str)),
+                              action='append',
+                              help='The trace duration (milliseconds) in '
+                                   'compilation')
+  optional_named.add_argument('--compiler-type', dest='compiler_type',
+                              type=CompilerType, choices=list(CompilerType),
+                              default=CompilerType.DEVICE,
+                              help='The type of compiler.')
+
+  return parser.parse_args(argv)
+
+def key_to_cmdline_flag(key: str) -> str:
+  """Convert key into a command line flag, e.g. 'foo-bars' -> '--foo-bar' """
+  if key.endswith("s"):
+    key = key[:-1]
+  return "--" + key.replace("_", "-")
+
+def as_run_command(tpl: NamedTuple) -> List[Union[str, Any]]:
+  """
+  Convert a named tuple into a command-line compatible arguments list.
+
+  Example: ABC(1, 2, 3) -> ['--a', 1, '--b', 2, '--c', 3]
+  """
+  args = []
+  for key, value in tpl._asdict().items():
+    if value is None:
+      continue
+    args.append(key_to_cmdline_flag(key))
+    args.append(value)
+  return args
+
+def run_perfetto_collector(collector_info: CollectorPackageInfo,
+                           timeout: int,
+                           simulate: bool) -> Tuple[bool, TextIO]:
+  """Run collector to collect prefetching trace.
+
+  Returns:
+    A tuple of whether the collection succeeds and the generated trace file.
+  """
+  tmp_output_file = tempfile.NamedTemporaryFile()
+
+  collector = PerfettoTraceCollector(package=collector_info.package,
+                                     activity=None,
+                                     compiler_filter=collector_info.compiler_filter,
+                                     timeout=timeout,
+                                     simulate=simulate,
+                                     trace_duration=_PERFETTO_TRACE_DURATION,
+                                     save_destination_file_path=tmp_output_file.name)
+  result = collector.run()
+
+  return result is not None, tmp_output_file
+
+def parse_run_script_csv_file(csv_file: TextIO) -> DataFrame:
+  """Parse a CSV file full of integers into a DataFrame."""
+  csv_reader = csv.reader(csv_file)
+
+  try:
+    header_list = next(csv_reader)
+  except StopIteration:
+    header_list = []
+
+  if not header_list:
+    return None
+
+  headers = [i for i in header_list]
+
+  d = {}
+  for row in csv_reader:
+    header_idx = 0
+
+    for i in row:
+      v = i
+      if i:
+        v = int(i)
+
+      header_key = headers[header_idx]
+      l = d.get(header_key, [])
+      l.append(v)
+      d[header_key] = l
+
+      header_idx = header_idx + 1
+
+  return DataFrame(d)
+
+def build_ri_compiler_argv(inodes_path: str,
+                           perfetto_trace_file: str,
+                           trace_duration: Optional[timedelta]
+                           ) -> str:
+  argv = ['-i', inodes_path, '--perfetto-trace',
+          perfetto_trace_file]
+
+  if trace_duration is not None:
+    argv += ['--duration', str(int(trace_duration.total_seconds()
+                                   * PerfettoTraceCollector.MS_PER_SEC))]
+
+  print_utils.debug_print(argv)
+  return argv
+
+def execute_run_using_perfetto_trace(collector_info,
+                                     run_combos: Iterable[RunCommandArgs],
+                                     simulate: bool,
+                                     inodes_path: str,
+                                     timeout: int,
+                                     compiler_type: CompilerType,
+                                     requires_trace_collection: bool) -> DataFrame:
+  """ Executes run based on perfetto trace. """
+  if requires_trace_collection:
+    passed, perfetto_trace_file = run_perfetto_collector(collector_info,
+                                                         timeout,
+                                                         simulate)
+    if not passed:
+      raise RuntimeError('Cannot run perfetto collector!')
+  else:
+    perfetto_trace_file = tempfile.NamedTemporaryFile()
+
+  with perfetto_trace_file:
+    for combos in run_combos:
+      if combos.readahead in _TRACING_READAHEADS:
+        if simulate:
+          compiler_trace_file = tempfile.NamedTemporaryFile()
+        else:
+          ri_compiler_argv = build_ri_compiler_argv(inodes_path,
+                                                    perfetto_trace_file.name,
+                                                    combos.trace_duration)
+          compiler_trace_file = compiler.compile(compiler_type,
+                                                 inodes_path,
+                                                 ri_compiler_argv,
+                                                 combos.package,
+                                                 combos.activity)
+
+        with compiler_trace_file:
+          combos = combos._replace(input=compiler_trace_file.name)
+          print_utils.debug_print(combos)
+          output = PrefetchAppRunner(**combos._asdict()).run()
+      else:
+        print_utils.debug_print(combos)
+        output = PrefetchAppRunner(**combos._asdict()).run()
+
+      yield DataFrame(dict((x, [y]) for x, y in output)) if output else None
+
+def execute_run_combos(
+    grouped_run_combos: Iterable[Tuple[CollectorPackageInfo, Iterable[RunCommandArgs]]],
+    simulate: bool,
+    inodes_path: str,
+    timeout: int,
+    compiler_type: CompilerType,
+    requires_trace_collection: bool):
+  # nothing will work if the screen isn't unlocked first.
+  cmd_utils.execute_arbitrary_command([_UNLOCK_SCREEN_SCRIPT],
+                                      timeout,
+                                      simulate=simulate,
+                                      shell=False)
+
+  for collector_info, run_combos in grouped_run_combos:
+    yield from execute_run_using_perfetto_trace(collector_info,
+                                                run_combos,
+                                                simulate,
+                                                inodes_path,
+                                                timeout,
+                                                compiler_type,
+                                                requires_trace_collection)
+
+def gather_results(commands: Iterable[Tuple[DataFrame]],
+                   key_list: List[str], value_list: List[Tuple[str, ...]]):
+  print_utils.debug_print("gather_results: key_list = ", key_list)
+  stringify_none = lambda s: s is None and "<none>" or s
+  #  yield key_list + ["time(ms)"]
+  for (run_result_list, values) in itertools.zip_longest(commands, value_list):
+    print_utils.debug_print("run_result_list = ", run_result_list)
+    print_utils.debug_print("values = ", values)
+
+    if not run_result_list:
+      continue
+
+    # RunCommandArgs(package='com.whatever', readahead='warm', compiler_filter=None)
+    # -> {'package':['com.whatever'], 'readahead':['warm'], 'compiler_filter':[None]}
+    values_dict = {}
+    for k, v in values._asdict().items():
+      if not k in key_list:
+        continue
+      values_dict[k] = [stringify_none(v)]
+
+    values_df = DataFrame(values_dict)
+    # project 'values_df' to be same number of rows as run_result_list.
+    values_df = values_df.repeat(run_result_list.data_row_len)
+
+    # the results are added as right-hand-side columns onto the existing labels for the table.
+    values_df.merge_data_columns(run_result_list)
+
+    yield values_df
+
+def eval_and_save_to_csv(output, annotated_result_values):
+  printed_header = False
+
+  csv_writer = csv.writer(output)
+  for row in annotated_result_values:
+    if not printed_header:
+      headers = row.headers
+      csv_writer.writerow(headers)
+      printed_header = True
+      # TODO: what about when headers change?
+
+    for data_row in row.data_table:
+      data_row = [d for d in data_row]
+      csv_writer.writerow(data_row)
+
+    output.flush()  # see the output live.
+
+def coerce_to_list(opts: dict):
+  """Tranform values of the dictionary to list.
+  For example:
+  1 -> [1], None -> [None], [1,2,3] -> [1,2,3]
+  [[1],[2]] -> [[1],[2]], {1:1, 2:2} -> [{1:1, 2:2}]
+  """
+  result = {}
+  for key in opts:
+    val = opts[key]
+    result[key] = val if issubclass(type(val), list) else [val]
+  return result
+
+def main():
+  global _debug
+
+  opts = parse_options()
+  _debug = opts.debug
+  if _DEBUG_FORCE is not None:
+    _debug = _DEBUG_FORCE
+
+  print_utils.DEBUG = _debug
+  cmd_utils.SIMULATE = opts.simulate
+
+  print_utils.debug_print("parsed options: ", opts)
+
+  output_file = opts.output and open(opts.output, 'w') or sys.stdout
+
+  combos = lambda: args_utils.generate_run_combinations(
+      RunCommandArgs,
+      coerce_to_list(vars(opts)),
+      opts.loop_count)
+  print_utils.debug_print_gen("run combinations: ", combos())
+
+  grouped_combos = lambda: args_utils.generate_group_run_combinations(combos(),
+                                                                      CollectorPackageInfo)
+
+  print_utils.debug_print_gen("grouped run combinations: ", grouped_combos())
+  requires_trace_collection = any(i in _TRACING_READAHEADS for i in opts.readaheads)
+  exec = execute_run_combos(grouped_combos(),
+                            opts.simulate,
+                            opts.inodes,
+                            opts.timeout,
+                            opts.compiler_type,
+                            requires_trace_collection)
+
+  results = gather_results(exec, _COMBINATORIAL_OPTIONS, combos())
+
+  eval_and_save_to_csv(output_file, results)
+
+  return 1
+
+if __name__ == '__main__':
+  sys.exit(main())
diff --git a/startop/scripts/app_startup/app_startup_runner_test.py b/startop/scripts/app_startup/app_startup_runner_test.py
new file mode 100755
index 0000000..0c2bbea
--- /dev/null
+++ b/startop/scripts/app_startup/app_startup_runner_test.py
@@ -0,0 +1,176 @@
+#!/usr/bin/env python3
+#
+# Copyright 2018, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""
+Unit tests for the app_startup_runner.py script.
+
+Install:
+  $> sudo apt-get install python3-pytest   ##  OR
+  $> pip install -U pytest
+See also https://docs.pytest.org/en/latest/getting-started.html
+
+Usage:
+  $> ./app_startup_runner_test.py
+  $> pytest app_startup_runner_test.py
+  $> python -m pytest app_startup_runner_test.py
+
+See also https://docs.pytest.org/en/latest/usage.html
+"""
+
+import io
+import shlex
+import sys
+import typing
+# global imports
+from contextlib import contextmanager
+
+# local imports
+import app_startup_runner as asr
+# pip imports
+import pytest
+
+#
+# Argument Parsing Helpers
+#
+
+@contextmanager
+def ignore_stdout_stderr():
+  """Ignore stdout/stderr output for duration of this context."""
+  old_stdout = sys.stdout
+  old_stderr = sys.stderr
+  sys.stdout = io.StringIO()
+  sys.stderr = io.StringIO()
+  try:
+    yield
+  finally:
+    sys.stdout = old_stdout
+    sys.stderr = old_stderr
+
+@contextmanager
+def argparse_bad_argument(msg):
+  """
+  Assert that a SystemExit is raised when executing this context.
+  If the assertion fails, print the message 'msg'.
+  """
+  with pytest.raises(SystemExit, message=msg):
+    with ignore_stdout_stderr():
+      yield
+
+def assert_bad_argument(args, msg):
+  """
+  Assert that the command line arguments in 'args' are malformed.
+  Prints 'msg' if the assertion fails.
+  """
+  with argparse_bad_argument(msg):
+    parse_args(args)
+
+def parse_args(args):
+  """
+  :param args: command-line like arguments as a single string
+  :return:  dictionary of parsed key/values
+  """
+  # "-a b -c d"    => ['-a', 'b', '-c', 'd']
+  return vars(asr.parse_options(shlex.split(args)))
+
+def default_dict_for_parsed_args(**kwargs):
+  """
+  # Combine it with all of the "optional" parameters' default values.
+  """
+  d = {'compiler_filters': None, 'simulate': False, 'debug': False,
+       'output': None, 'timeout': 10, 'loop_count': 1, 'inodes': None,
+       'trace_duration': None, 'compiler_type': asr.CompilerType.DEVICE}
+  d.update(kwargs)
+  return d
+
+def default_mock_dict_for_parsed_args(include_optional=True, **kwargs):
+  """
+  Combine default dict with all optional parameters with some mock required parameters.
+  """
+  d = {'packages': ['com.fake.package'], 'readaheads': ['warm']}
+  if include_optional:
+    d.update(default_dict_for_parsed_args())
+  d.update(kwargs)
+  return d
+
+def parse_optional_args(str):
+  """
+  Parse an argument string which already includes all the required arguments
+  in default_mock_dict_for_parsed_args.
+  """
+  req = "--package com.fake.package --readahead warm"
+  return parse_args("%s %s" % (req, str))
+
+def test_argparse():
+  # missing arguments
+  assert_bad_argument("", "-p and -r are required")
+  assert_bad_argument("-r warm", "-p is required")
+  assert_bad_argument("--readahead warm", "-p is required")
+  assert_bad_argument("-p com.fake.package", "-r is required")
+  assert_bad_argument("--package com.fake.package", "-r is required")
+
+  # required arguments are parsed correctly
+  ad = default_dict_for_parsed_args  # assert dict
+
+  assert parse_args("--package xyz --readahead warm") == ad(packages=['xyz'],
+                                                            readaheads=['warm'])
+  assert parse_args("-p xyz -r warm") == ad(packages=['xyz'],
+                                            readaheads=['warm'])
+
+  assert parse_args("-p xyz -r warm -s") == ad(packages=['xyz'],
+                                               readaheads=['warm'],
+                                               simulate=True)
+  assert parse_args("-p xyz -r warm --simulate") == ad(packages=['xyz'],
+                                                       readaheads=['warm'],
+                                                       simulate=True)
+
+  # optional arguments are parsed correctly.
+  mad = default_mock_dict_for_parsed_args  # mock assert dict
+  assert parse_optional_args("--output filename.csv") == mad(
+    output='filename.csv')
+  assert parse_optional_args("-o filename.csv") == mad(output='filename.csv')
+
+  assert parse_optional_args("--timeout 123") == mad(timeout=123)
+  assert parse_optional_args("-t 456") == mad(timeout=456)
+
+  assert parse_optional_args("--loop-count 123") == mad(loop_count=123)
+  assert parse_optional_args("-lc 456") == mad(loop_count=456)
+
+  assert parse_optional_args("--inodes bar") == mad(inodes="bar")
+  assert parse_optional_args("-in baz") == mad(inodes="baz")
+
+
+
+def test_key_to_cmdline_flag():
+  assert asr.key_to_cmdline_flag("abc") == "--abc"
+  assert asr.key_to_cmdline_flag("foos") == "--foo"
+  assert asr.key_to_cmdline_flag("ba_r") == "--ba-r"
+  assert asr.key_to_cmdline_flag("ba_zs") == "--ba-z"
+
+def test_parse_run_script_csv_file():
+  # empty file -> empty list
+  f = io.StringIO("")
+  assert asr.parse_run_script_csv_file(f) == None
+
+  # common case
+  f = io.StringIO("TotalTime_ms,Displayed_ms\n1,2")
+  df = asr.DataFrame({'TotalTime_ms': [1], 'Displayed_ms': [2]})
+
+  pf = asr.parse_run_script_csv_file(f)
+  assert pf == df
+
+if __name__ == '__main__':
+  pytest.main()
diff --git a/startop/scripts/app_startup/force_compiler_filter b/startop/scripts/app_startup/force_compiler_filter
new file mode 100755
index 0000000..08f983d
--- /dev/null
+++ b/startop/scripts/app_startup/force_compiler_filter
@@ -0,0 +1,143 @@
+#!/bin/bash
+#
+# Copyright 2018, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#
+# Forces an application APK to be compiled (by ART's dex2oat)
+# with a specific compiler filter.
+#
+# Example usage:
+#    $> ./force_compiler_filter -p com.google.android.apps.maps -c speed-profile
+#
+# (The application may be started/stopped as a side effect)
+#
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+source "$DIR/lib/common"
+
+usage() {
+    cat <<EOF
+Usage: $(basename $0) [OPTION]...
+
+  Required:
+    -p, --package               package of the app to recompile
+    -c, --compiler-filter       override the compiler filter if set (default none)
+                                valid options are listed by: adb shell cmd package, under compile -m
+
+  Optional:
+    -a, --activity              activity of the app to recompile
+    -h, --help                  usage information (this)
+    -v, --verbose               enable extra verbose printing
+    -w, --wait_time             how long to wait for app startup (default 10) in seconds
+EOF
+}
+
+wait_time="10" # seconds
+
+parse_arguments() {
+  while [[ $# -gt 0 ]]; do
+    case "$1" in
+      -a|--activity)
+        activity="$2"
+        shift
+        ;;
+      -h|--help)
+        usage
+        exit 0
+        ;;
+      -p|--package)
+        package="$2"
+        shift
+        ;;
+      -w|--wait_time)
+        wait_time="$2"
+        shift
+        ;;
+      -c|--compiler-filter)
+        compiler_filter="$2"
+        shift
+        ;;
+      -v|--verbose)
+        verbose="y"
+        ;;
+    esac
+    shift
+  done
+
+  if [[ -z "$compiler_filter" ]]; then
+    echo "Missing required --compiler-filter" >&2
+    echo ""
+    usage
+    exit 1
+  fi
+  if [[ -z "$package" ]]; then
+    echo "Missing required --package" >&2
+    echo ""
+    usage
+    exit 1
+  fi
+
+  if [[ "$activity" == "" ]]; then
+    activity="$(get_activity_name "$package")"
+    if [[ "$activity" == "" ]]; then
+      echo "Activity name could not be found, invalid package name?" 1>&2
+      exit 1
+    else
+      verbose_print "Activity name inferred: " "$activity"
+    fi
+  fi
+}
+
+force_package_compilation() {
+  local arg_compiler_filter="$1"
+  local arg_package="$2"
+
+  if [[ $arg_compiler_filter == speed-profile ]]; then
+    # Force the running app to dump its profiles to disk.
+    remote_pkill "$arg_package" -SIGUSR1
+    sleep 1 # give some time for above to complete.
+  fi
+
+  adb shell cmd package compile -m "$arg_compiler_filter" -f "$arg_package"
+}
+
+main() {
+  parse_arguments "$@"
+
+  if [[ $compiler_filter == speed-profile ]]; then
+    # screen needs to be unlocked in order to run an app
+    "$DIR"/unlock_screen
+
+    local output=$("$DIR"/launch_application "$package" "$activity")
+    if [[ $? -ne 0 ]]; then
+      echo "launching application failed" >&2
+      exit 1
+    fi
+
+    verbose_print "$output"
+    # give some time for app startup to complete.
+    # this is supposed to be an upper bound for measuring startup time.
+    sleep "$wait_time"
+  fi
+
+  force_package_compilation "$compiler_filter" "$package"
+
+  # kill the application to ensure next time it's started,
+  # it picks up the correct compilation filter.
+  adb shell am force-stop "$package"
+  remote_pkill "$package"
+}
+
+main "$@"
diff --git a/startop/scripts/app_startup/launch_application b/startop/scripts/app_startup/launch_application
new file mode 100755
index 0000000..6704a5a
--- /dev/null
+++ b/startop/scripts/app_startup/launch_application
@@ -0,0 +1,52 @@
+#!/bin/bash
+#
+# Copyright 2018, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+source "$DIR/lib/common"
+
+launch_application_usage() {
+    cat <<EOF
+Usage: $(basename $0) <package> <activity>
+
+  Positional Arguments:
+    <package>                   package of the app to test
+    <activity>                  activity to use
+
+  Named Arguments:
+    -h, --help                  usage information (this)
+EOF
+}
+
+launch_application() {
+  local package="$1"
+  local activity="$2"
+
+  # if there's any $s inside of the activity name, it needs to be escaped to \$.
+  # example '.app.honeycomb.Shell$HomeActivity'
+  # if the $ is not escaped, adb shell will try to evaluate $HomeActivity to a variable.
+  activity=${activity//\$/\\$}
+
+  adb shell am start -S -W "$package"/"$activity"
+
+  # pipe this into 'parse_metrics' to parse the output.
+}
+
+if [[ $# -lt 2 ]]; then
+  launch_application_usage
+  exit 1
+fi
+
+launch_application "$@"
diff --git a/startop/scripts/app_startup/lib/adb_utils.py b/startop/scripts/app_startup/lib/adb_utils.py
new file mode 100644
index 0000000..3cebc9a
--- /dev/null
+++ b/startop/scripts/app_startup/lib/adb_utils.py
@@ -0,0 +1,126 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Helper util libraries for calling adb command line."""
+
+import datetime
+import os
+import re
+import sys
+import time
+from typing import Optional
+
+sys.path.append(os.path.dirname(os.path.dirname(os.path.dirname(
+  os.path.abspath(__file__)))))
+import lib.cmd_utils as cmd_utils
+import lib.logcat_utils as logcat_utils
+
+
+def logcat_save_timestamp() -> str:
+  """Gets the current logcat timestamp.
+
+  Returns:
+    A string of timestamp.
+  """
+  _, output = cmd_utils.run_adb_shell_command(
+    "date -u +\'%Y-%m-%d %H:%M:%S.%N\'")
+  return output
+
+def vm_drop_cache():
+  """Free pagecache and slab object."""
+  cmd_utils.run_adb_shell_command('echo 3 > /proc/sys/vm/drop_caches')
+  # Sleep a little bit to provide enough time for cache cleanup.
+  time.sleep(1)
+
+def root():
+  """Roots adb and successive adb commands will run under root."""
+  cmd_utils.run_shell_command('adb root')
+
+def disable_selinux():
+  """Disables selinux setting."""
+  _, output = cmd_utils.run_adb_shell_command('getenforce')
+  if output == 'Permissive':
+    return
+
+  print('Disable selinux permissions and restart framework.')
+  cmd_utils.run_adb_shell_command('setenforce 0')
+  cmd_utils.run_adb_shell_command('stop')
+  cmd_utils.run_adb_shell_command('start')
+  cmd_utils.run_shell_command('adb wait-for-device')
+
+def pkill(procname: str):
+  """Kills a process on device specified by the substring pattern in procname"""
+  _, pids = cmd_utils.run_shell_command('adb shell ps | grep "{}" | '
+                                        'awk \'{{print $2;}}\''.
+                                          format(procname))
+
+  for pid in pids.split('\n'):
+    pid = pid.strip()
+    if pid:
+      passed,_ = cmd_utils.run_adb_shell_command('kill {}'.format(pid))
+      time.sleep(1)
+
+def parse_time_to_milliseconds(time: str) -> int:
+  """Parses the time string to milliseconds."""
+  # Example: +1s56ms, +56ms
+  regex = r'\+((?P<second>\d+?)s)?(?P<millisecond>\d+?)ms'
+  result = re.search(regex, time)
+  second = 0
+  if result.group('second'):
+    second = int(result.group('second'))
+  ms = int(result.group('millisecond'))
+  return second * 1000 + ms
+
+def blocking_wait_for_logcat_displayed_time(timestamp: datetime.datetime,
+                                            package: str,
+                                            timeout: int) -> Optional[int]:
+  """Parses the displayed time in the logcat.
+
+  Returns:
+    the displayed time.
+  """
+  pattern = re.compile('.*ActivityTaskManager: Displayed {}.*'.format(package))
+  # 2019-07-02 22:28:34.469453349 -> 2019-07-02 22:28:34.469453
+  timestamp = datetime.datetime.strptime(timestamp[:-3],
+                                         '%Y-%m-%d %H:%M:%S.%f')
+  timeout_dt = timestamp + datetime.timedelta(0, timeout)
+  # 2019-07-01 14:54:21.946 27365 27392 I ActivityTaskManager:
+  # Displayed com.android.settings/.Settings: +927ms
+  result = logcat_utils.blocking_wait_for_logcat_pattern(timestamp,
+                                                         pattern,
+                                                         timeout_dt)
+  if not result or not '+' in result:
+    return None
+  displayed_time = result[result.rfind('+'):]
+
+  return parse_time_to_milliseconds(displayed_time)
+
+def delete_file_on_device(file_path: str) -> None:
+  """ Deletes a file on the device. """
+  cmd_utils.run_adb_shell_command(
+    "[[ -f '{file_path}' ]] && rm -f '{file_path}' || "
+    "exit 0".format(file_path=file_path))
+
+def set_prop(property: str, value: str) -> None:
+  """ Sets property using adb shell. """
+  cmd_utils.run_adb_shell_command('setprop "{property}" "{value}"'.format(
+      property=property, value=value))
+
+def pull_file(device_file_path: str, output_file_path: str) -> None:
+  """ Pulls file from device to output """
+  cmd_utils.run_shell_command('adb pull "{device_file_path}" "{output_file_path}"'.
+      format(device_file_path=device_file_path,
+             output_file_path=output_file_path))
diff --git a/startop/scripts/app_startup/lib/adb_utils_test.py b/startop/scripts/app_startup/lib/adb_utils_test.py
new file mode 100644
index 0000000..e590fed
--- /dev/null
+++ b/startop/scripts/app_startup/lib/adb_utils_test.py
@@ -0,0 +1,16 @@
+import adb_utils
+
+# pip imports
+import pytest
+
+def test_parse_time_to_milliseconds():
+  # Act
+  result1 = adb_utils.parse_time_to_milliseconds('+1s7ms')
+  result2 = adb_utils.parse_time_to_milliseconds('+523ms')
+
+  # Assert
+  assert result1 == 1007
+  assert result2 == 523
+
+if __name__ == '__main__':
+  pytest.main()
diff --git a/startop/scripts/app_startup/lib/app_runner.py b/startop/scripts/app_startup/lib/app_runner.py
new file mode 100644
index 0000000..78873fa
--- /dev/null
+++ b/startop/scripts/app_startup/lib/app_runner.py
@@ -0,0 +1,266 @@
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Class to run an app."""
+import os
+import sys
+from typing import Optional, List, Tuple
+
+# local import
+sys.path.append(os.path.dirname(os.path.dirname(os.path.dirname(
+    os.path.abspath(__file__)))))
+
+import app_startup.lib.adb_utils as adb_utils
+import lib.cmd_utils as cmd_utils
+import lib.print_utils as print_utils
+
+class AppRunnerListener(object):
+  """Interface for lisenter of AppRunner. """
+
+  def preprocess(self) -> None:
+    """Preprocess callback to initialized before the app is running. """
+    pass
+
+  def postprocess(self, pre_launch_timestamp: str) -> None:
+    """Postprocess callback to cleanup after the app is running.
+
+      param:
+        'pre_launch_timestamp': indicates the timestamp when the app is
+        launching.. """
+    pass
+
+  def metrics_selector(self, am_start_output: str,
+                       pre_launch_timestamp: str) -> None:
+    """A metrics selection callback that waits for the desired metrics to
+      show up in logcat.
+      params:
+        'am_start_output': indicates the output of app startup.
+        'pre_launch_timestamp': indicates the timestamp when the app is
+                        launching.
+      returns:
+        a string in the format of "<metric>=<value>\n<metric>=<value>\n..."
+        for further parsing. For example "TotalTime=123\nDisplayedTime=121".
+        Return an empty string if no metrics need to be parsed further.
+        """
+    pass
+
+class AppRunner(object):
+  """ Class to run an app. """
+  # static variables
+  DIR = os.path.abspath(os.path.dirname(__file__))
+  APP_STARTUP_DIR = os.path.dirname(DIR)
+  IORAP_COMMON_BASH_SCRIPT = os.path.realpath(os.path.join(DIR,
+                                                           '../../iorap/common'))
+  DEFAULT_TIMEOUT = 30 # seconds
+
+  def __init__(self,
+               package: str,
+               activity: Optional[str],
+               compiler_filter: Optional[str],
+               timeout: Optional[int],
+               simulate: bool):
+    self.package = package
+    self.simulate = simulate
+
+    # If the argument activity is None, try to set it.
+    self.activity = activity
+    if self.simulate:
+      self.activity = 'act'
+    if self.activity is None:
+      self.activity = AppRunner.get_activity(self.package)
+
+    self.compiler_filter = compiler_filter
+    self.timeout = timeout if timeout else AppRunner.DEFAULT_TIMEOUT
+
+    self.listeners = []
+
+  def add_callbacks(self, listener: AppRunnerListener):
+    self.listeners.append(listener)
+
+  def remove_callbacks(self, listener: AppRunnerListener):
+    self.listeners.remove(listener)
+
+  @staticmethod
+  def get_activity(package: str) -> str:
+    """ Tries to set the activity based on the package. """
+    passed, activity = cmd_utils.run_shell_func(
+        AppRunner.IORAP_COMMON_BASH_SCRIPT,
+        'get_activity_name',
+        [package])
+
+    if not passed or not activity:
+      raise ValueError(
+          'Activity name could not be found, invalid package name?!')
+
+    return activity
+
+  def configure_compiler_filter(self) -> bool:
+    """Configures compiler filter (e.g. speed).
+
+    Returns:
+      A bool indicates whether configure of compiler filer succeeds or not.
+    """
+    if not self.compiler_filter:
+      print_utils.debug_print('No --compiler-filter specified, don\'t'
+                              ' need to force it.')
+      return True
+
+    passed, current_compiler_filter_info = \
+      cmd_utils.run_shell_command(
+          '{} --package {}'.format(os.path.join(AppRunner.APP_STARTUP_DIR,
+                                                'query_compiler_filter.py'),
+                                   self.package))
+
+    if passed != 0:
+      return passed
+
+    # TODO: call query_compiler_filter directly as a python function instead of
+    #  these shell calls.
+    current_compiler_filter, current_reason, current_isa = \
+      current_compiler_filter_info.split(' ')
+    print_utils.debug_print('Compiler Filter={} Reason={} Isa={}'.format(
+        current_compiler_filter, current_reason, current_isa))
+
+    # Don't trust reasons that aren't 'unknown' because that means
+    #  we didn't manually force the compilation filter.
+    # (e.g. if any automatic system-triggered compilations are not unknown).
+    if current_reason != 'unknown' or \
+        current_compiler_filter != self.compiler_filter:
+      passed, _ = adb_utils.run_shell_command('{}/force_compiler_filter '
+                                              '--compiler-filter "{}" '
+                                              '--package "{}"'
+                                              ' --activity "{}'.
+                                                format(AppRunner.APP_STARTUP_DIR,
+                                                       self.compiler_filter,
+                                                       self.package,
+                                                       self.activity))
+    else:
+      adb_utils.debug_print('Queried compiler-filter matched requested '
+                            'compiler-filter, skip forcing.')
+      passed = False
+    return passed
+
+  def run(self) -> Optional[List[Tuple[str]]]:
+    """Runs an app.
+
+    Returns:
+      A list of (metric, value) tuples.
+    """
+    print_utils.debug_print('==========================================')
+    print_utils.debug_print('=====             START              =====')
+    print_utils.debug_print('==========================================')
+    # Run the preprocess.
+    for listener in self.listeners:
+      listener.preprocess()
+
+    # Ensure the APK is currently compiled with whatever we passed in
+    # via --compiler-filter.
+    # No-op if this option was not passed in.
+    if not self.configure_compiler_filter():
+      print_utils.error_print('Compiler filter configuration failed!')
+      return None
+
+    pre_launch_timestamp = adb_utils.logcat_save_timestamp()
+    # Launch the app.
+    results = self.launch_app(pre_launch_timestamp)
+
+    # Run the postprocess.
+    for listener in self.listeners:
+      listener.postprocess(pre_launch_timestamp)
+
+    return results
+
+  def launch_app(self, pre_launch_timestamp: str) -> Optional[List[Tuple[str]]]:
+    """ Launches the app.
+
+        Returns:
+          A list of (metric, value) tuples.
+    """
+    print_utils.debug_print('Running with timeout {}'.format(self.timeout))
+
+    passed, am_start_output = cmd_utils.run_shell_command('timeout {timeout} '
+                                                 '"{DIR}/launch_application" '
+                                                 '"{package}" '
+                                                 '"{activity}"'.
+                                                   format(timeout=self.timeout,
+                                                          DIR=AppRunner.APP_STARTUP_DIR,
+                                                          package=self.package,
+                                                          activity=self.activity))
+    if not passed and not self.simulate:
+      return None
+
+    return self.wait_for_app_finish(pre_launch_timestamp, am_start_output)
+
+  def wait_for_app_finish(self,
+                          pre_launch_timestamp: str,
+                          am_start_output:  str) -> Optional[List[Tuple[str]]]:
+    """ Wait for app finish and all metrics are shown in logcat.
+
+    Returns:
+      A list of (metric, value) tuples.
+    """
+    if self.simulate:
+      return [('TotalTime', '123')]
+
+    ret = []
+    for listener in self.listeners:
+      output = listener.metrics_selector(am_start_output,
+                                         pre_launch_timestamp)
+      ret = ret + AppRunner.parse_metrics_output(output)
+
+    return ret
+
+  @staticmethod
+  def parse_metrics_output(input: str) -> List[
+    Tuple[str, str, str]]:
+    """Parses output of app startup to metrics and corresponding values.
+
+    It converts 'a=b\nc=d\ne=f\n...' into '[(a,b,''),(c,d,''),(e,f,'')]'
+
+    Returns:
+      A list of tuples that including metric name, metric value and rest info.
+    """
+    all_metrics = []
+    for line in input.split('\n'):
+      if not line:
+        continue
+      splits = line.split('=')
+      if len(splits) < 2:
+        print_utils.error_print('Bad line "{}"'.format(line))
+        continue
+      metric_name = splits[0]
+      metric_value = splits[1]
+      rest = splits[2] if len(splits) > 2 else ''
+      if rest:
+        print_utils.error_print('Corrupt line "{}"'.format(line))
+      print_utils.debug_print('metric: "{metric_name}", '
+                              'value: "{metric_value}" '.
+                                format(metric_name=metric_name,
+                                     metric_value=metric_value))
+
+      all_metrics.append((metric_name, metric_value))
+    return all_metrics
+
+  @staticmethod
+  def parse_total_time( am_start_output: str) -> Optional[str]:
+    """Parses the total time from 'adb shell am start pkg' output.
+
+    Returns:
+      the total time of app startup.
+    """
+    for line in am_start_output.split('\n'):
+      if 'TotalTime:' in line:
+        return line[len('TotalTime:'):].strip()
+    return None
+
diff --git a/startop/scripts/app_startup/lib/app_runner_test.py b/startop/scripts/app_startup/lib/app_runner_test.py
new file mode 100644
index 0000000..33d233b
--- /dev/null
+++ b/startop/scripts/app_startup/lib/app_runner_test.py
@@ -0,0 +1,104 @@
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""Unit tests for the AppRunner."""
+import os
+import sys
+from pathlib import Path
+
+from app_runner import AppRunner, AppRunnerListener
+from mock import Mock, call, patch
+
+# The path is "frameworks/base/startop/scripts/"
+sys.path.append(Path(os.path.realpath(__file__)).parents[2])
+import lib.cmd_utils as cmd_utils
+
+class AppRunnerTestListener(AppRunnerListener):
+  def preprocess(self) -> None:
+    cmd_utils.run_shell_command('pre'),
+
+  def postprocess(self, pre_launch_timestamp: str) -> None:
+    cmd_utils.run_shell_command('post'),
+
+  def metrics_selector(self, am_start_output: str,
+                       pre_launch_timestamp: str) -> None:
+    return 'TotalTime=123\n'
+
+RUNNER = AppRunner(package='music',
+                   activity='MainActivity',
+                   compiler_filter='speed',
+                   timeout=None,
+                   simulate=False)
+
+
+
+def test_configure_compiler_filter():
+  with patch('lib.cmd_utils.run_shell_command',
+             new_callable=Mock) as mock_run_shell_command:
+    mock_run_shell_command.return_value = (True, 'speed arm64 kUpToDate')
+
+    RUNNER.configure_compiler_filter()
+
+    calls = [call(os.path.realpath(
+        os.path.join(RUNNER.DIR,
+                     '../query_compiler_filter.py')) + ' --package music')]
+    mock_run_shell_command.assert_has_calls(calls)
+
+def test_parse_metrics_output():
+  input = 'a1=b1\nc1=d1\ne1=f1'
+  ret = RUNNER.parse_metrics_output(input)
+
+  assert ret == [('a1', 'b1'), ('c1', 'd1'), ('e1', 'f1')]
+
+def _mocked_run_shell_command(*args, **kwargs):
+  if args[0] == 'adb shell "date -u +\'%Y-%m-%d %H:%M:%S.%N\'"':
+    return (True, "2019-07-02 23:20:06.972674825")
+  elif args[0] == 'adb shell ps | grep "music" | awk \'{print $2;}\'':
+    return (True, '9999')
+  else:
+    return (True, 'a1=b1\nc1=d1=d2\ne1=f1')
+
+@patch('app_startup.lib.adb_utils.blocking_wait_for_logcat_displayed_time')
+@patch('lib.cmd_utils.run_shell_command')
+def test_run(mock_run_shell_command,
+             mock_blocking_wait_for_logcat_displayed_time):
+  mock_run_shell_command.side_effect = _mocked_run_shell_command
+  mock_blocking_wait_for_logcat_displayed_time.return_value = 123
+
+  test_listener = AppRunnerTestListener()
+  RUNNER.add_callbacks(test_listener)
+
+  result = RUNNER.run()
+
+  RUNNER.remove_callbacks(test_listener)
+
+  calls = [call('pre'),
+           call(os.path.realpath(
+               os.path.join(RUNNER.DIR,
+                            '../query_compiler_filter.py')) +
+                ' --package music'),
+           call('adb shell "date -u +\'%Y-%m-%d %H:%M:%S.%N\'"'),
+           call(
+               'timeout {timeout} "{DIR}/launch_application" "{package}" "{activity}"'
+                 .format(timeout=30,
+                         DIR=os.path.realpath(os.path.dirname(RUNNER.DIR)),
+                         package='music',
+                         activity='MainActivity',
+                         timestamp='2019-07-02 23:20:06.972674825')),
+           call('post')
+           ]
+  mock_run_shell_command.assert_has_calls(calls)
+  assert result == [('TotalTime', '123')]
+  assert len(RUNNER.listeners) == 0
\ No newline at end of file
diff --git a/startop/scripts/app_startup/lib/args_utils.py b/startop/scripts/app_startup/lib/args_utils.py
new file mode 100644
index 0000000..080f3b5
--- /dev/null
+++ b/startop/scripts/app_startup/lib/args_utils.py
@@ -0,0 +1,77 @@
+import itertools
+import os
+import sys
+from typing import Any, Callable, Dict, Iterable, List, NamedTuple, Tuple, \
+    TypeVar, Optional
+
+# local import
+sys.path.append(os.path.dirname(os.path.dirname(os.path.dirname(
+    os.path.abspath(__file__)))))
+import lib.print_utils as print_utils
+
+T = TypeVar('T')
+NamedTupleMeta = Callable[
+    ..., T]  # approximation of a (S : NamedTuple<T> where S() == T) metatype.
+FilterFuncType = Callable[[NamedTuple], bool]
+
+def dict_lookup_any_key(dictionary: dict, *keys: List[Any]):
+  for k in keys:
+    if k in dictionary:
+      return dictionary[k]
+
+
+  print_utils.debug_print("None of the keys {} were in the dictionary".format(
+      keys))
+  return [None]
+
+def generate_run_combinations(named_tuple: NamedTupleMeta[T],
+                              opts_dict: Dict[str, List[Optional[object]]],
+                              loop_count: int = 1) -> Iterable[T]:
+  """
+  Create all possible combinations given the values in opts_dict[named_tuple._fields].
+
+  :type T: type annotation for the named_tuple type.
+  :param named_tuple: named tuple type, whose fields are used to make combinations for
+  :param opts_dict: dictionary of keys to value list. keys correspond to the named_tuple fields.
+  :param loop_count: number of repetitions.
+  :return: an iterable over named_tuple instances.
+  """
+  combinations_list = []
+  for k in named_tuple._fields:
+    # the key can be either singular or plural , e.g. 'package' or 'packages'
+    val = dict_lookup_any_key(opts_dict, k, k + "s")
+
+    # treat {'x': None} key value pairs as if it was [None]
+    # otherwise itertools.product throws an exception about not being able to iterate None.
+    combinations_list.append(val or [None])
+
+  print_utils.debug_print("opts_dict: ", opts_dict)
+  print_utils.debug_print_nd("named_tuple: ", named_tuple)
+  print_utils.debug_print("combinations_list: ", combinations_list)
+
+  for i in range(loop_count):
+    for combo in itertools.product(*combinations_list):
+      yield named_tuple(*combo)
+
+def filter_run_combinations(named_tuple: NamedTuple,
+                            filters: List[FilterFuncType]) -> bool:
+  for filter in filters:
+    if filter(named_tuple):
+      return False
+  return True
+
+def generate_group_run_combinations(run_combinations: Iterable[NamedTuple],
+                                    dst_nt: NamedTupleMeta[T]) \
+    -> Iterable[Tuple[T, Iterable[NamedTuple]]]:
+  def group_by_keys(src_nt):
+    src_d = src_nt._asdict()
+    # now remove the keys that aren't legal in dst.
+    for illegal_key in set(src_d.keys()) - set(dst_nt._fields):
+      if illegal_key in src_d:
+        del src_d[illegal_key]
+
+    return dst_nt(**src_d)
+
+  for args_list_it in itertools.groupby(run_combinations, group_by_keys):
+    (group_key_value, args_it) = args_list_it
+    yield (group_key_value, args_it)
diff --git a/startop/scripts/app_startup/lib/args_utils_test.py b/startop/scripts/app_startup/lib/args_utils_test.py
new file mode 100644
index 0000000..4b7e0fa
--- /dev/null
+++ b/startop/scripts/app_startup/lib/args_utils_test.py
@@ -0,0 +1,58 @@
+#!/usr/bin/env python3
+#
+# Copyright 2018, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""Unit tests for the args_utils.py script."""
+
+import typing
+
+import args_utils
+
+def generate_run_combinations(*args):
+  # expand out the generator values so that assert x == y works properly.
+  return [i for i in args_utils.generate_run_combinations(*args)]
+
+def test_generate_run_combinations():
+  blank_nd = typing.NamedTuple('Blank')
+  assert generate_run_combinations(blank_nd, {}, 1) == [()], "empty"
+  assert generate_run_combinations(blank_nd, {'a': ['a1', 'a2']}) == [
+    ()], "empty filter"
+  a_nd = typing.NamedTuple('A', [('a', str)])
+  assert generate_run_combinations(a_nd, {'a': None}) == [(None,)], "None"
+  assert generate_run_combinations(a_nd, {'a': ['a1', 'a2']}) == [('a1',), (
+    'a2',)], "one item"
+  assert generate_run_combinations(a_nd,
+                                   {'a': ['a1', 'a2'], 'b': ['b1', 'b2']}) == [
+           ('a1',), ('a2',)], \
+    "one item filter"
+  assert generate_run_combinations(a_nd, {'a': ['a1', 'a2']}, 2) == [('a1',), (
+    'a2',), ('a1',), ('a2',)], "one item"
+  ab_nd = typing.NamedTuple('AB', [('a', str), ('b', str)])
+  assert generate_run_combinations(ab_nd,
+                                   {'a': ['a1', 'a2'],
+                                    'b': ['b1', 'b2']}) == [ab_nd('a1', 'b1'),
+                                                            ab_nd('a1', 'b2'),
+                                                            ab_nd('a2', 'b1'),
+                                                            ab_nd('a2', 'b2')], \
+    "two items"
+
+  assert generate_run_combinations(ab_nd,
+                                   {'as': ['a1', 'a2'],
+                                    'bs': ['b1', 'b2']}) == [ab_nd('a1', 'b1'),
+                                                             ab_nd('a1', 'b2'),
+                                                             ab_nd('a2', 'b1'),
+                                                             ab_nd('a2', 'b2')], \
+    "two items plural"
diff --git a/startop/scripts/app_startup/lib/common b/startop/scripts/app_startup/lib/common
new file mode 100755
index 0000000..bedaa1e
--- /dev/null
+++ b/startop/scripts/app_startup/lib/common
@@ -0,0 +1,198 @@
+#!/bin/bash
+# Copyright 2018, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+if [[ -z $ANDROID_BUILD_TOP ]]; then
+  echo "Please run source build/envsetup.sh first" >&2
+  exit 1
+fi
+
+source $ANDROID_BUILD_TOP/build/envsetup.sh
+
+verbose_print() {
+  if [[ "$verbose" == "y" ]]; then
+    echo "$@" >&2
+  fi
+}
+
+remote_pidof() {
+  local procname="$1"
+  adb shell ps | grep "$procname" | awk '{print $2;}'
+}
+
+remote_pkill() {
+  local procname="$1"
+  shift
+
+  local the_pids=$(remote_pidof "$procname")
+  local pid
+
+  for pid in $the_pids; do
+    verbose_print adb shell kill "$@" "$pid"
+    adb shell kill "$@" "$pid"
+  done
+}
+
+get_activity_name() {
+  local package="$1"
+  local action_key="android.intent.action.MAIN:"
+
+  # Example query-activities output being parsed:
+  #
+  #  Activity #14:
+  #    priority=0 preferredOrder=0 match=0x108000 specificIndex=-1 isDefault=true
+  #    com.google.android.videos/com.google.android.youtube.videos.EntryPoint
+  #  Activity #15:
+  #    priority=0 preferredOrder=0 match=0x108000 specificIndex=-1 isDefault=true
+  #    com.google.android.youtube/.app.honeycomb.Shell$HomeActivity
+
+  # Given package 'com.google.android.youtube' return '.app.honeycomb.Shell$HomeActivity'
+
+  local activity_line="$(adb shell cmd package query-activities --brief -a android.intent.action.MAIN -c android.intent.category.LAUNCHER | grep "$package/")"
+  IFS="/" read -a array <<< "$activity_line"
+  local activity_name="${array[1]}"
+
+  # Activities starting with '.' are shorthand for having their package name prefixed.
+  if [[ $activity_name == .* ]]; then
+    activity_name="${package}${activity_name}"
+  fi
+  echo "$activity_name"
+}
+
+# Use with logcat_from_timestamp to skip all past log-lines.
+logcat_save_timestamp() {
+  adb shell 'date -u +"%Y-%m-%d %H:%M:%S.%N"'
+}
+
+# Roll forward logcat to only show events
+# since the specified timestamp.
+#
+# i.e. don't look at historical logcat,
+# only look at FUTURE logcat.
+#
+# First use 'logcat_save_timestamp'
+# Then do whatever action you want.
+# Then use 'logcat_from_timestamp_bg $timestamp'
+logcat_from_timestamp_bg() {
+  local timestamp="$1"
+  shift # drop timestamp from args.
+  verbose_print adb logcat -T \"$timestamp\" \"$@\"
+  adb logcat -v UTC -T "$timestamp" "$@" &
+  logcat_from_timestamp_pid=$!
+}
+
+# Starting at timestamp $2, wait until we seen pattern $3
+# or until a timeout happens in $1 seconds.
+# If successful, also echo the line that matched the pattern.
+#
+# Set VERBOSE_LOGCAT=1 to debug every line of logcat it tries to parse.
+logcat_select_pattern() {
+  local timeout="$1"
+  local timestamp="$2"
+  local pattern="$3"
+
+  local logcat_fd
+
+  coproc logcat_fd {
+    kill_children_quietly() {
+      kill "$logcat_pidd"
+      wait "$logcat_pidd" 2>/dev/null
+    }
+
+    trap 'kill_children_quietly' EXIT # kill logcat when this coproc is killed.
+
+    # run logcat in the background so it can be killed.
+    logcat_from_timestamp_bg "$timestamp"
+    logcat_pidd=$logcat_from_timestamp_pid
+    wait "$logcat_pidd"
+  }
+  local logcat_pid="$!"
+  verbose_print "[LOGCAT] Spawn pid $logcat_pid"
+
+  local timeout_ts="$(date -d "now + ${timeout} seconds" '+%s')"
+  local now_ts="0"
+
+  local return_code=1
+
+  verbose_print "logcat_wait_for_pattern begin"
+
+  while read -t "$timeout" -r -u "${logcat_fd[0]}" logcat_output; do
+    if (( $VERBOSE_LOGCAT )); then
+      verbose_print "LOGCAT: $logcat_output"
+    fi
+    if [[ "$logcat_output:" == *"$pattern"* ]]; then
+      verbose_print "LOGCAT: " "$logcat_output"
+      verbose_print "WE DID SEE PATTERN" '<<' "$pattern" '>>.'
+      echo "$logcat_output"
+      return_code=0
+      break
+    fi
+    now_ts="$(date -d "now" '+%s')"
+    if (( now_ts >= timeout_ts )); then
+      verbose_print "DID TIMEOUT BEFORE SEEING ANYTHING (timeout=$timeout seconds) " '<<' "$pattern" '>>.'
+      break
+    fi
+  done
+
+  # Don't leave logcat lying around since it will keep going.
+  kill "$logcat_pid"
+  # Suppress annoying 'Terminated...' message.
+  wait "$logcat_pid" 2>/dev/null
+
+  verbose_print "[LOGCAT] $logcat_pid should be killed"
+
+  return $return_code
+}
+
+# Starting at timestamp $2, wait until we seen pattern $3
+# or until a timeout happens in $1 seconds.
+#
+# Set VERBOSE_LOGCAT=1 to debug every line of logcat it tries to parse.
+logcat_wait_for_pattern() {
+  logcat_select_pattern "$@" > /dev/null
+}
+
+# Starting at timestamp $2, wait until we seen pattern $3
+# or until a timeout happens in $1 seconds.
+# If successful, extract with the regular expression pattern in #4
+# and return the first capture group.
+#
+# Set VERBOSE_LOGCAT=1 to debug every line of logcat it tries to parse.
+logcat_extract_pattern() {
+  local timeout="$1"
+  local timestamp="$2"
+  local pattern="$3"
+  local re_pattern="$4"
+
+  local result
+  local exit_code
+
+  result="$(logcat_select_pattern "$@")"
+  exit_code=$?
+
+  if [[ $exit_code -ne 0 ]]; then
+    return $exit_code
+  fi
+
+  echo "$result" | sed 's/'"$re_pattern"'/\1/g'
+}
+
+# Join array
+#   FOO=(a b c)
+#   join_by , "${FOO[@]}" #a,b,c
+join_by() {
+  local IFS="$1"
+  shift
+  echo "$*"
+}
diff --git a/startop/scripts/app_startup/lib/data_frame.py b/startop/scripts/app_startup/lib/data_frame.py
new file mode 100644
index 0000000..20a2308
--- /dev/null
+++ b/startop/scripts/app_startup/lib/data_frame.py
@@ -0,0 +1,201 @@
+import itertools
+from typing import Dict, List
+
+class DataFrame:
+  """Table-like class for storing a 2D cells table with named columns."""
+  def __init__(self, data: Dict[str, List[object]] = {}):
+    """
+    Create a new DataFrame from a dictionary (keys = headers,
+    values = columns).
+    """
+    self._headers = [i for i in data.keys()]
+    self._rows = []
+
+    row_num = 0
+
+    def get_data_row(idx):
+      r = {}
+      for header, header_data in data.items():
+
+        if not len(header_data) > idx:
+          continue
+
+        r[header] = header_data[idx]
+
+      return r
+
+    while True:
+      row_dict = get_data_row(row_num)
+      if len(row_dict) == 0:
+        break
+
+      self._append_row(row_dict.keys(), row_dict.values())
+      row_num = row_num + 1
+
+  def concat_rows(self, other: 'DataFrame') -> None:
+    """
+    In-place concatenate rows of other into the rows of the
+    current DataFrame.
+
+    None is added in pre-existing cells if new headers
+    are introduced.
+    """
+    other_datas = other._data_only()
+
+    other_headers = other.headers
+
+    for d in other_datas:
+      self._append_row(other_headers, d)
+
+  def _append_row(self, headers: List[str], data: List[object]):
+    new_row = {k:v for k,v in zip(headers, data)}
+    self._rows.append(new_row)
+
+    for header in headers:
+      if not header in self._headers:
+        self._headers.append(header)
+
+  def __repr__(self):
+#     return repr(self._rows)
+    repr = ""
+
+    header_list = self._headers_only()
+
+    row_format = u""
+    for header in header_list:
+      row_format = row_format + u"{:>%d}" %(len(header) + 1)
+
+    repr = row_format.format(*header_list) + "\n"
+
+    for v in self._data_only():
+      repr = repr + row_format.format(*v) + "\n"
+
+    return repr
+
+  def __eq__(self, other):
+    if isinstance(other, self.__class__):
+      return self.headers == other.headers and self.data_table == other.data_table
+    else:
+      print("wrong instance", other.__class__)
+      return False
+
+  @property
+  def headers(self) -> List[str]:
+    return [i for i in self._headers_only()]
+
+  @property
+  def data_table(self) -> List[List[object]]:
+    return list(self._data_only())
+
+  @property
+  def data_table_transposed(self) -> List[List[object]]:
+    return list(self._transposed_data())
+
+  @property
+  def data_row_len(self) -> int:
+    return len(self._rows)
+
+  def data_row_at(self, idx) -> List[object]:
+    """
+    Return a single data row at the specified index (0th based).
+
+    Accepts negative indices, e.g. -1 is last row.
+    """
+    row_dict = self._rows[idx]
+    l = []
+
+    for h in self._headers_only():
+      l.append(row_dict.get(h)) # Adds None in blank spots.
+
+    return l
+
+  def copy(self) -> 'DataFrame':
+    """
+    Shallow copy of this DataFrame.
+    """
+    return self.repeat(count=0)
+
+  def repeat(self, count: int) -> 'DataFrame':
+    """
+    Returns a new DataFrame where each row of this dataframe is repeated count times.
+    A repeat of a row is adjacent to other repeats of that same row.
+    """
+    df = DataFrame()
+    df._headers = self._headers.copy()
+
+    rows = []
+    for row in self._rows:
+      for i in range(count):
+        rows.append(row.copy())
+
+    df._rows = rows
+
+    return df
+
+  def merge_data_columns(self, other: 'DataFrame'):
+    """
+    Merge self and another DataFrame by adding the data from other column-wise.
+    For any headers that are the same, data from 'other' is preferred.
+    """
+    for h in other._headers:
+      if not h in self._headers:
+        self._headers.append(h)
+
+    append_rows = []
+
+    for self_dict, other_dict in itertools.zip_longest(self._rows, other._rows):
+      if not self_dict:
+        d = {}
+        append_rows.append(d)
+      else:
+        d = self_dict
+
+      d_other = other_dict
+      if d_other:
+        for k,v in d_other.items():
+          d[k] = v
+
+    for r in append_rows:
+      self._rows.append(r)
+
+  def data_row_reduce(self, fnc) -> 'DataFrame':
+    """
+    Reduces the data row-wise by applying the fnc to each row (column-wise).
+    Empty cells are skipped.
+
+    fnc(Iterable[object]) -> object
+    fnc is applied over every non-empty cell in that column (descending row-wise).
+
+    Example:
+      DataFrame({'a':[1,2,3]}).data_row_reduce(sum) == DataFrame({'a':[6]})
+
+    Returns a new single-row DataFrame.
+    """
+    df = DataFrame()
+    df._headers = self._headers.copy()
+
+    def yield_by_column(header_key):
+      for row_dict in self._rows:
+        val = row_dict.get(header_key)
+        if val:
+          yield val
+
+    new_row_dict = {}
+    for h in df._headers:
+      cell_value = fnc(yield_by_column(h))
+      new_row_dict[h] = cell_value
+
+    df._rows = [new_row_dict]
+    return df
+
+  def _headers_only(self):
+    return self._headers
+
+  def _data_only(self):
+    row_len = len(self._rows)
+
+    for i in range(row_len):
+      yield self.data_row_at(i)
+
+  def _transposed_data(self):
+    return zip(*self._data_only())
\ No newline at end of file
diff --git a/startop/scripts/app_startup/lib/data_frame_test.py b/startop/scripts/app_startup/lib/data_frame_test.py
new file mode 100644
index 0000000..1cbc1cb
--- /dev/null
+++ b/startop/scripts/app_startup/lib/data_frame_test.py
@@ -0,0 +1,128 @@
+#!/usr/bin/env python3
+#
+# Copyright 2018, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""Unit tests for the data_frame.py script."""
+
+from data_frame import DataFrame
+
+def test_data_frame():
+  # trivial empty data frame
+  df = DataFrame()
+  assert df.headers == []
+  assert df.data_table == []
+  assert df.data_table_transposed == []
+
+  # common case, same number of values in each place.
+  df = DataFrame({'TotalTime_ms': [1, 2, 3], 'Displayed_ms': [4, 5, 6]})
+  assert df.headers == ['TotalTime_ms', 'Displayed_ms']
+  assert df.data_table == [[1, 4], [2, 5], [3, 6]]
+  assert df.data_table_transposed == [(1, 2, 3), (4, 5, 6)]
+
+  # varying num values.
+  df = DataFrame({'many': [1, 2], 'none': []})
+  assert df.headers == ['many', 'none']
+  assert df.data_table == [[1, None], [2, None]]
+  assert df.data_table_transposed == [(1, 2), (None, None)]
+
+  df = DataFrame({'many': [], 'none': [1, 2]})
+  assert df.headers == ['many', 'none']
+  assert df.data_table == [[None, 1], [None, 2]]
+  assert df.data_table_transposed == [(None, None), (1, 2)]
+
+  # merge multiple data frames
+  df = DataFrame()
+  df.concat_rows(DataFrame())
+  assert df.headers == []
+  assert df.data_table == []
+  assert df.data_table_transposed == []
+
+  df = DataFrame()
+  df2 = DataFrame({'TotalTime_ms': [1, 2, 3], 'Displayed_ms': [4, 5, 6]})
+
+  df.concat_rows(df2)
+  assert df.headers == ['TotalTime_ms', 'Displayed_ms']
+  assert df.data_table == [[1, 4], [2, 5], [3, 6]]
+  assert df.data_table_transposed == [(1, 2, 3), (4, 5, 6)]
+
+  df = DataFrame({'TotalTime_ms': [1, 2]})
+  df2 = DataFrame({'Displayed_ms': [4, 5]})
+
+  df.concat_rows(df2)
+  assert df.headers == ['TotalTime_ms', 'Displayed_ms']
+  assert df.data_table == [[1, None], [2, None], [None, 4], [None, 5]]
+
+  df = DataFrame({'TotalTime_ms': [1, 2]})
+  df2 = DataFrame({'TotalTime_ms': [3, 4], 'Displayed_ms': [5, 6]})
+
+  df.concat_rows(df2)
+  assert df.headers == ['TotalTime_ms', 'Displayed_ms']
+  assert df.data_table == [[1, None], [2, None], [3, 5], [4, 6]]
+
+  # data_row_at
+  df = DataFrame({'TotalTime_ms': [1, 2, 3], 'Displayed_ms': [4, 5, 6]})
+  assert df.data_row_at(-1) == [3, 6]
+  assert df.data_row_at(2) == [3, 6]
+  assert df.data_row_at(1) == [2, 5]
+
+  # repeat
+  df = DataFrame({'TotalTime_ms': [1], 'Displayed_ms': [4]})
+  df2 = DataFrame({'TotalTime_ms': [1, 1, 1], 'Displayed_ms': [4, 4, 4]})
+  assert df.repeat(3) == df2
+
+  # repeat
+  df = DataFrame({'TotalTime_ms': [1, 1, 1], 'Displayed_ms': [4, 4, 4]})
+  assert df.data_row_len == 3
+  df = DataFrame({'TotalTime_ms': [1, 1]})
+  assert df.data_row_len == 2
+
+  # repeat
+  df = DataFrame({'TotalTime_ms': [1, 1, 1], 'Displayed_ms': [4, 4, 4]})
+  assert df.data_row_len == 3
+  df = DataFrame({'TotalTime_ms': [1, 1]})
+  assert df.data_row_len == 2
+
+  # data_row_reduce
+  df = DataFrame({'TotalTime_ms': [1, 1, 1], 'Displayed_ms': [4, 4, 4]})
+  df_sum = DataFrame({'TotalTime_ms': [3], 'Displayed_ms': [12]})
+  assert df.data_row_reduce(sum) == df_sum
+
+  # merge_data_columns
+  df = DataFrame({'TotalTime_ms': [1, 2, 3]})
+  df2 = DataFrame({'Displayed_ms': [3, 4, 5, 6]})
+
+  df.merge_data_columns(df2)
+  assert df == DataFrame(
+    {'TotalTime_ms': [1, 2, 3], 'Displayed_ms': [3, 4, 5, 6]})
+
+  df = DataFrame({'TotalTime_ms': [1, 2, 3]})
+  df2 = DataFrame({'Displayed_ms': [3, 4]})
+
+  df.merge_data_columns(df2)
+  assert df == DataFrame(
+    {'TotalTime_ms': [1, 2, 3], 'Displayed_ms': [3, 4]})
+
+  df = DataFrame({'TotalTime_ms': [1, 2, 3]})
+  df2 = DataFrame({'TotalTime_ms': [10, 11]})
+
+  df.merge_data_columns(df2)
+  assert df == DataFrame({'TotalTime_ms': [10, 11, 3]})
+
+  df = DataFrame({'TotalTime_ms': []})
+  df2 = DataFrame({'TotalTime_ms': [10, 11]})
+
+  df.merge_data_columns(df2)
+  assert df == DataFrame({'TotalTime_ms': [10, 11]})
diff --git a/startop/scripts/app_startup/lib/perfetto_trace_collector.py b/startop/scripts/app_startup/lib/perfetto_trace_collector.py
new file mode 100644
index 0000000..9ffb349
--- /dev/null
+++ b/startop/scripts/app_startup/lib/perfetto_trace_collector.py
@@ -0,0 +1,166 @@
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Class to collector perfetto trace."""
+import datetime
+import os
+import re
+import sys
+import time
+from datetime import timedelta
+from typing import Optional, List, Tuple
+
+# global variables
+DIR = os.path.abspath(os.path.dirname(__file__))
+
+sys.path.append(os.path.dirname(os.path.dirname(DIR)))
+
+import app_startup.lib.adb_utils as adb_utils
+from app_startup.lib.app_runner import AppRunner, AppRunnerListener
+import lib.print_utils as print_utils
+import lib.logcat_utils as logcat_utils
+import iorap.lib.iorapd_utils as iorapd_utils
+
+class PerfettoTraceCollector(AppRunnerListener):
+  """ Class to collect perfetto trace.
+
+      To set trace duration of perfetto, change the 'trace_duration_ms'.
+      To pull the generated perfetto trace on device, set the 'output'.
+  """
+  TRACE_FILE_SUFFIX = 'perfetto_trace.pb'
+  TRACE_DURATION_PROP = 'iorapd.perfetto.trace_duration_ms'
+  MS_PER_SEC  = 1000
+  DEFAULT_TRACE_DURATION = timedelta(milliseconds=5000) # 5 seconds
+  _COLLECTOR_TIMEOUT_MULTIPLIER = 10  # take the regular timeout and multiply
+
+  def __init__(self,
+               package: str,
+               activity: Optional[str],
+               compiler_filter: Optional[str],
+               timeout: Optional[int],
+               simulate: bool,
+               trace_duration: timedelta = DEFAULT_TRACE_DURATION,
+               save_destination_file_path: Optional[str] = None):
+    """ Initialize the perfetto trace collector. """
+    self.app_runner = AppRunner(package,
+                                activity,
+                                compiler_filter,
+                                timeout,
+                                simulate)
+    self.app_runner.add_callbacks(self)
+
+    self.trace_duration = trace_duration
+    self.save_destination_file_path = save_destination_file_path
+
+  def purge_file(self, suffix: str) -> None:
+    print_utils.debug_print('iorapd-perfetto: purge file in ' +
+                            self._get_remote_path())
+    adb_utils.delete_file_on_device(self._get_remote_path())
+
+  def run(self) -> Optional[List[Tuple[str]]]:
+    """Runs an app.
+
+    Returns:
+      A list of (metric, value) tuples.
+    """
+    return self.app_runner.run()
+
+  def preprocess(self):
+    # Sets up adb environment.
+    adb_utils.root()
+    adb_utils.disable_selinux()
+    time.sleep(1)
+
+    # Kill any existing process of this app
+    adb_utils.pkill(self.app_runner.package)
+
+    # Remove existing trace and compiler files
+    self.purge_file(PerfettoTraceCollector.TRACE_FILE_SUFFIX)
+
+    # Set perfetto trace duration prop to milliseconds.
+    adb_utils.set_prop(PerfettoTraceCollector.TRACE_DURATION_PROP,
+                       int(self.trace_duration.total_seconds()*
+                           PerfettoTraceCollector.MS_PER_SEC))
+
+    if not iorapd_utils.stop_iorapd():
+      raise RuntimeError('Cannot stop iorapd!')
+
+    if not iorapd_utils.enable_iorapd_perfetto():
+      raise RuntimeError('Cannot enable perfetto!')
+
+    if not iorapd_utils.disable_iorapd_readahead():
+      raise RuntimeError('Cannot disable readahead!')
+
+    if not iorapd_utils.start_iorapd():
+      raise RuntimeError('Cannot start iorapd!')
+
+    # Drop all caches to get cold starts.
+    adb_utils.vm_drop_cache()
+
+  def postprocess(self, pre_launch_timestamp: str):
+    # Kill any existing process of this app
+    adb_utils.pkill(self.app_runner.package)
+
+    iorapd_utils.disable_iorapd_perfetto()
+
+    if self.save_destination_file_path is not None:
+      adb_utils.pull_file(self._get_remote_path(),
+                          self.save_destination_file_path)
+
+  def metrics_selector(self, am_start_output: str,
+                       pre_launch_timestamp: str) -> str:
+    """Parses the metric after app startup by reading from logcat in a blocking
+    manner until all metrics have been found".
+
+    Returns:
+      An empty string because the metric needs no further parsing.
+    """
+    if not self._wait_for_perfetto_trace(pre_launch_timestamp):
+      raise RuntimeError('Could not save perfetto app trace file!')
+
+    return ''
+
+  def _wait_for_perfetto_trace(self, pre_launch_timestamp) -> Optional[str]:
+    """ Waits for the perfetto trace being saved to file.
+
+    The string is in the format of r".*Perfetto TraceBuffer saved to file:
+    <file path>.*"
+
+    Returns:
+      the string what the program waits for. If the string doesn't show up,
+      return None.
+    """
+    pattern = re.compile(r'.*Perfetto TraceBuffer saved to file: {}.*'.
+                         format(self._get_remote_path()))
+
+    # The pre_launch_timestamp is longer than what the datetime can parse. Trim
+    # last three digits to make them align. For example:
+    # 2019-07-02 23:20:06.972674825999 -> 2019-07-02 23:20:06.972674825
+    assert len(pre_launch_timestamp) == len('2019-07-02 23:20:06.972674825')
+    timestamp = datetime.datetime.strptime(pre_launch_timestamp[:-3],
+                                           '%Y-%m-%d %H:%M:%S.%f')
+
+    # The timeout of perfetto trace is longer than the normal app run timeout.
+    timeout_dt = self.app_runner.timeout * PerfettoTraceCollector._COLLECTOR_TIMEOUT_MULTIPLIER
+    timeout_end = timestamp + datetime.timedelta(seconds=timeout_dt)
+
+    return logcat_utils.blocking_wait_for_logcat_pattern(timestamp,
+                                                         pattern,
+                                                         timeout_end)
+
+  def _get_remote_path(self):
+    # For example: android.music%2Fmusic.TopLevelActivity.perfetto_trace.pb
+    return iorapd_utils._iorapd_path_to_data_file(self.app_runner.package,
+                                                  self.app_runner.activity,
+                                                  PerfettoTraceCollector.TRACE_FILE_SUFFIX)
diff --git a/startop/scripts/app_startup/lib/perfetto_trace_collector_test.py b/startop/scripts/app_startup/lib/perfetto_trace_collector_test.py
new file mode 100644
index 0000000..8d94fc5
--- /dev/null
+++ b/startop/scripts/app_startup/lib/perfetto_trace_collector_test.py
@@ -0,0 +1,101 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""Unit tests for the data_frame.py script."""
+import os
+import sys
+from pathlib import Path
+from datetime import timedelta
+
+from mock import call, patch
+from perfetto_trace_collector import PerfettoTraceCollector
+
+sys.path.append(Path(os.path.realpath(__file__)).parents[2])
+from app_startup.lib.app_runner import AppRunner
+
+RUNNER = PerfettoTraceCollector(package='music',
+                                activity='MainActivity',
+                                compiler_filter=None,
+                                timeout=10,
+                                simulate=False,
+                                trace_duration = timedelta(milliseconds=1000),
+                                # No actual file will be created. Just to
+                                # check the command.
+                                save_destination_file_path='/tmp/trace.pb')
+
+def _mocked_run_shell_command(*args, **kwargs):
+  if args[0] == 'adb shell ps | grep "music" | awk \'{print $2;}\'':
+    return (True, '9999')
+  else:
+    return (True, '')
+
+@patch('lib.logcat_utils.blocking_wait_for_logcat_pattern')
+@patch('lib.cmd_utils.run_shell_command')
+def test_perfetto_trace_collector_preprocess(mock_run_shell_command,
+                                             mock_blocking_wait_for_logcat_pattern):
+  mock_run_shell_command.side_effect = _mocked_run_shell_command
+  mock_blocking_wait_for_logcat_pattern.return_value = "Succeed!"
+
+  RUNNER.preprocess()
+
+  calls = [call('adb root'),
+           call('adb shell "getenforce"'),
+           call('adb shell "setenforce 0"'),
+           call('adb shell "stop"'),
+           call('adb shell "start"'),
+           call('adb wait-for-device'),
+           call('adb shell ps | grep "music" | awk \'{print $2;}\''),
+           call('adb shell "kill 9999"'),
+           call(
+               'adb shell "[[ -f \'/data/misc/iorapd/music%2FMainActivity.perfetto_trace.pb\' ]] '
+               '&& rm -f \'/data/misc/iorapd/music%2FMainActivity.perfetto_trace.pb\' || exit 0"'),
+           call('adb shell "setprop "iorapd.perfetto.trace_duration_ms" "1000""'),
+           call(
+               'bash -c "source {}; iorapd_stop"'.format(
+                   AppRunner.IORAP_COMMON_BASH_SCRIPT)),
+           call(
+               'bash -c "source {}; iorapd_perfetto_enable"'.format(
+                   AppRunner.IORAP_COMMON_BASH_SCRIPT)),
+           call(
+               'bash -c "source {}; iorapd_readahead_disable"'.format(
+                   AppRunner.IORAP_COMMON_BASH_SCRIPT)),
+           call(
+               'bash -c "source {}; iorapd_start"'.format(
+                   AppRunner.IORAP_COMMON_BASH_SCRIPT)),
+           call('adb shell "echo 3 > /proc/sys/vm/drop_caches"')]
+
+  mock_run_shell_command.assert_has_calls(calls)
+
+@patch('lib.logcat_utils.blocking_wait_for_logcat_pattern')
+@patch('lib.cmd_utils.run_shell_command')
+def test_perfetto_trace_collector_postprocess(mock_run_shell_command,
+                                              mock_blocking_wait_for_logcat_pattern):
+  mock_run_shell_command.side_effect = _mocked_run_shell_command
+  mock_blocking_wait_for_logcat_pattern.return_value = "Succeed!"
+
+  RUNNER.postprocess('2019-07-02 23:20:06.972674825')
+
+  calls = [call('adb shell ps | grep "music" | awk \'{print $2;}\''),
+           call('adb shell "kill 9999"'),
+           call(
+               'bash -c "source {}; iorapd_perfetto_disable"'.format(
+                   AppRunner.IORAP_COMMON_BASH_SCRIPT)),
+           call('adb pull '
+                '"/data/misc/iorapd/music%2FMainActivity.perfetto_trace.pb" '
+                '"/tmp/trace.pb"')]
+
+  mock_run_shell_command.assert_has_calls(calls)
diff --git a/startop/scripts/app_startup/parse_metrics b/startop/scripts/app_startup/parse_metrics
new file mode 100755
index 0000000..3fa1462
--- /dev/null
+++ b/startop/scripts/app_startup/parse_metrics
@@ -0,0 +1,215 @@
+#!/bin/bash
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+usage() {
+    cat <<EOF
+Usage: launch_application package activity | parse_metrics --package <name> --timestamp <timestamp> [OPTIONS]...
+
+  Reads from stdin the result of 'am start' metrics. May also parse logcat
+  for additional metrics.
+
+  Output form:
+
+    MetricName_unit=numeric_value
+    MetricName2_unit=numeric_value2
+
+  This may block until all desired metrics are parsed from logcat.
+  To get a list of metrics without doing real parsing, use --simulate.
+
+  To add package-specific metrics, add a script called 'metrics/\$full_package_name'
+  that exposes additional metrics in same way as above.
+
+  (required)
+    -p, --package <name>        package of the app that is being used
+    -ts, --timestamp <name>     logcat timestamp [only looks at logcat entries after this timestamp].
+
+  (optional)
+    -s, --simulate              prints dummy values instead of real metrics
+    -a, --activity <name>       activity to use (default: inferred)
+    -h, --help                  usage information (this)
+    -v, --verbose               enable extra verbose printing
+    -t, --timeout <sec>         how many seconds to timeout when trying to wait for logcat to change
+    -rfd, --reportfullydrawn    wait for report fully drawn (default: off)
+EOF
+}
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+source "$DIR/lib/common"
+
+report_fully_drawn="n"
+package=""
+activity=""
+timeout=5
+simulate="n"
+parse_arguments() {
+  while [[ $# -gt 0 ]]; do
+    case "$1" in
+      -h|--help)
+        usage
+        exit 0
+        ;;
+      -p|--package)
+        package="$2"
+        shift
+        ;;
+      -a|--activity)
+        activity="$2"
+        shift
+        ;;
+      -v|--verbose)
+        export verbose="y"
+        ;;
+      -t|--timeout)
+        timeout="$2"
+        shift
+        ;;
+      -ts|--timestamp)
+        timestamp="$2"
+        shift
+        ;;
+      -s|--simulate)
+        simulate="y"
+        ;;
+      -rfd|--reportfullydrawn)
+        report_fully_drawn="y"
+        ;;
+
+
+      *)
+        echo "Invalid argument: $1" >&2
+        exit 1
+    esac
+    shift
+  done
+}
+
+# Main entry point
+if [[ $# -eq 0 ]]; then
+  usage
+  exit 1
+else
+  parse_arguments "$@"
+
+  # if we do not have have package exit early with an error
+  [[ "$package" == "" ]] && echo "--package not specified" 1>&2 && exit 64
+
+  # ignore timestamp for --simulate. it's optional.
+  if [[ $simulate == y ]]; then
+    timestamp=0
+  fi
+
+  # if we do not have timestamp, exit early with an error
+  [[ "$timestamp" == "" ]] && echo "--timestamp not specified" 1>&2 && exit 64
+
+  if [[ "$activity" == "" ]] && [[ "$simulate" != "y" ]]; then
+    activity="$(get_activity_name "$package")"
+    if [[ "$activity" == "" ]]; then
+      echo "Activity name could not be found, invalid package name?" 1>&2
+      exit 64
+    else
+      verbose_print "Activity name inferred: " "$activity"
+    fi
+  fi
+fi
+
+parse_metric_from_logcat() {
+  local metric_name="$1"
+  local pattern="$2"
+  local re_pattern="$3"
+  local retcode
+  local result
+  local sec
+  local ms
+
+  # parse logcat for 'Displayed...' and that other one...
+
+  # 05-06 14:34:08.854 29460 29481 I ActivityTaskManager: Displayed com.google.android.dialer/.extensions.GoogleDialtactsActivity: +361ms
+  verbose_print "parse_metric_from_logcat: $re_pattern"
+
+
+  echo -ne "$metric_name="
+
+  if [[ $simulate == y ]]; then
+    echo "-1"
+    return 0
+  fi
+
+  result="$(logcat_extract_pattern "$timeout" "$timestamp" "$pattern" "$re_pattern")"
+  retcode=$?
+
+  if [[ $retcode -ne 0 ]]; then
+    # Timed out before finding the pattern. Could also mean the pattern is wrong.
+    echo "Parse $re_pattern from logcat TIMED OUT after $timeout seconds." >&2
+    echo "-$?"
+    return $retcode
+  fi
+
+  # "10s123ms" -> "10s123"
+  result=${result/ms/}
+  if [[ $result =~ s ]]; then
+    ms=${result/*s/}
+    sec=${result/s*/}
+  else
+    sec=0
+    ms=$result
+  fi
+  ((result=sec*1000+ms))
+
+  echo "$result"
+  return $retcode
+}
+
+
+total_time="-1"
+if [[ $simulate != y ]]; then
+  verbose_print 'logcat timestamp NOW: ' $(logcat_save_timestamp)
+
+  # parse stdin for 'am start' result
+  while read -t "$timeout" -r input_line; do
+    verbose_print 'stdin:' "$input_line"
+    if [[ $input_line == *TotalTime:* ]]; then
+      total_time="$(echo "$input_line" | sed 's/TotalTime: \([[:digit:]]\+\)/\1/g')"
+      # but keep reading the rest from stdin until <EOF>
+    fi
+  done
+fi
+
+echo "TotalTime_ms=$total_time"
+
+# parse logcat for 'Displayed...' and that other one...
+
+# 05-06 14:34:08.854 29460 29481 I ActivityTaskManager: Displayed com.google.android.dialer/.extensions.GoogleDialtactsActivity: +361ms
+pattern="ActivityTaskManager: Displayed ${package}"
+re_pattern='.*Displayed[[:blank:]]\+'"${package}"'[/][^[:blank:]]\+[[:blank:]]+\([[:digit:]]\+ms\|[[:digit:]]\+s[[:digit:]]\+ms\).*'
+
+parse_metric_from_logcat "Displayed_ms" "$pattern" "$re_pattern"
+
+# Only track ReportFullyDrawn with --reportfullydrawn/-rfd flags
+if [[ $report_fully_drawn == y ]]; then
+  # 01-16 17:31:44.550 11172 11204 I ActivityTaskManager: Fully drawn com.google.android.GoogleCamera/com.android.camera.CameraLauncher: +10s897ms
+  pattern="ActivityTaskManager: Fully drawn ${package}"
+  #re_pattern='.*Fully drawn[[:blank:]]\+'"${package}"'[/][^[:blank:]]\+[[:blank:]]+\([[:digit:]]\+\).*'
+  re_pattern='.*Fully drawn[[:blank:]]\+'"${package}"'[/][^[:blank:]]\+[[:blank:]]+\([[:digit:]]\+ms\|[[:digit:]]\+s[[:digit:]]\+ms\).*'
+
+  parse_metric_from_logcat "Fully_drawn_ms" "$pattern" "$re_pattern"
+fi
+
+# also call into package-specific scripts if there are additional metrics
+if [[ -x "$DIR/metrics/$package" ]]; then
+  source "$DIR/metrics/$package" "$timestamp"
+else
+  verbose_print parse_metrics: no per-package metrics script found at "$DIR/metrics/$package"
+fi
diff --git a/startop/scripts/app_startup/query_compiler_filter.py b/startop/scripts/app_startup/query_compiler_filter.py
new file mode 100755
index 0000000..ea14264
--- /dev/null
+++ b/startop/scripts/app_startup/query_compiler_filter.py
@@ -0,0 +1,232 @@
+#!/usr/bin/env python3
+#
+# Copyright 2018, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#
+#
+# Query the current compiler filter for an application by its package name.
+# (By parsing the results of the 'adb shell dumpsys package $package' command).
+# The output is a string "$compilation_filter $compilation_reason $isa".
+#
+# See --help for more details.
+#
+# -----------------------------------
+#
+# Sample usage:
+#
+# $> ./query_compiler_filter.py --package com.google.android.calculator
+# speed-profile unknown arm64
+#
+
+import argparse
+import os
+import re
+import sys
+
+# TODO: refactor this with a common library file with analyze_metrics.py
+DIR = os.path.abspath(os.path.dirname(__file__))
+sys.path.append(os.path.dirname(DIR))
+import lib.cmd_utils as cmd_utils
+import lib.print_utils as print_utils
+
+from typing import List, NamedTuple, Iterable
+
+_DEBUG_FORCE = None  # Ignore -d/--debug if this is not none.
+
+def parse_options(argv: List[str] = None):
+  """Parse command line arguments and return an argparse Namespace object."""
+  parser = argparse.ArgumentParser(description="Query the compiler filter for a package.")
+  # argparse considers args starting with - and -- optional in --help, even though required=True.
+  # by using a named argument group --help will clearly say that it's required instead of optional.
+  required_named = parser.add_argument_group('required named arguments')
+  required_named.add_argument('-p', '--package', action='store', dest='package', help='package of the application', required=True)
+
+  # optional arguments
+  # use a group here to get the required arguments to appear 'above' the optional arguments in help.
+  optional_named = parser.add_argument_group('optional named arguments')
+  optional_named.add_argument('-i', '--isa', '--instruction-set', action='store', dest='instruction_set', help='which instruction set to select. defaults to the first one available if not specified.', choices=('arm64', 'arm', 'x86_64', 'x86'))
+  optional_named.add_argument('-s', '--simulate', dest='simulate', action='store_true', help='Print which commands will run, but don\'t run the apps')
+  optional_named.add_argument('-d', '--debug', dest='debug', action='store_true', help='Add extra debugging output')
+
+  return parser.parse_args(argv)
+
+def remote_dumpsys_package(package: str, simulate: bool) -> str:
+  # --simulate is used for interactive debugging/development, but also for the unit test.
+  if simulate:
+    return """
+Dexopt state:
+  [%s]
+    path: /data/app/%s-D7s8PLidqqEq7Jc7UH_a5A==/base.apk
+      arm64: [status=speed-profile] [reason=unknown]
+    path: /data/app/%s-D7s8PLidqqEq7Jc7UH_a5A==/base.apk
+      arm: [status=speed] [reason=first-boot]
+    path: /data/app/%s-D7s8PLidqqEq7Jc7UH_a5A==/base.apk
+      x86: [status=quicken] [reason=install]
+""" %(package, package, package, package)
+
+  code, res = cmd_utils.execute_arbitrary_command(['adb', 'shell', 'dumpsys',
+                                                   'package', package],
+                                                  simulate=False,
+                                                  timeout=5,
+                                                  shell=False)
+  if code:
+    return res
+  else:
+    raise AssertionError("Failed to dumpsys package, errors = %s", res)
+
+ParseTree = NamedTuple('ParseTree', [('label', str), ('children', List['ParseTree'])])
+DexoptState = ParseTree # With the Dexopt state: label
+ParseResult = NamedTuple('ParseResult', [('remainder', List[str]), ('tree', ParseTree)])
+
+def find_parse_subtree(parse_tree: ParseTree, match_regex: str) -> ParseTree:
+  if re.match(match_regex, parse_tree.label):
+    return parse_tree
+
+  for node in parse_tree.children:
+    res = find_parse_subtree(node, match_regex)
+    if res:
+      return res
+
+  return None
+
+def find_parse_children(parse_tree: ParseTree, match_regex: str) -> Iterable[ParseTree]:
+  for node in parse_tree.children:
+    if re.match(match_regex, node.label):
+      yield node
+
+def parse_tab_subtree(label: str, str_lines: List[str], separator=' ', indent=-1) -> ParseResult:
+  children = []
+
+  get_indent_level = lambda line: len(line) - len(line.lstrip())
+
+  line_num = 0
+
+  keep_going = True
+  while keep_going:
+    keep_going = False
+
+    for line_num in range(len(str_lines)):
+      line = str_lines[line_num]
+      current_indent = get_indent_level(line)
+
+      print_utils.debug_print("INDENT=%d, LINE=%s" %(current_indent, line))
+
+      current_label = line.lstrip()
+
+      # skip empty lines
+      if line.lstrip() == "":
+        continue
+
+      if current_indent > indent:
+        parse_result = parse_tab_subtree(current_label, str_lines[line_num+1::], separator, current_indent)
+        str_lines = parse_result.remainder
+        children.append(parse_result.tree)
+        keep_going = True
+      else:
+        # current_indent <= indent
+        keep_going = False
+
+      break
+
+  new_remainder = str_lines[line_num::]
+  print_utils.debug_print("NEW REMAINDER: ", new_remainder)
+
+  parse_tree = ParseTree(label, children)
+  return ParseResult(new_remainder, parse_tree)
+
+def parse_tab_tree(str_tree: str, separator=' ', indentation_level=-1) -> ParseTree:
+
+  label = None
+  lst = []
+
+  line_num = 0
+  line_lst = str_tree.split("\n")
+
+  return parse_tab_subtree("", line_lst, separator, indentation_level).tree
+
+def parse_dexopt_state(dumpsys_tree: ParseTree) -> DexoptState:
+  res = find_parse_subtree(dumpsys_tree, "Dexopt(\s+)state[:]?")
+  if not res:
+    raise AssertionError("Could not find the Dexopt state")
+  return res
+
+def find_first_compiler_filter(dexopt_state: DexoptState, package: str, instruction_set: str) -> str:
+  lst = find_all_compiler_filters(dexopt_state, package)
+
+  print_utils.debug_print("all compiler filters: ", lst)
+
+  for compiler_filter_info in lst:
+    if not instruction_set:
+      return compiler_filter_info
+
+    if compiler_filter_info.isa == instruction_set:
+      return compiler_filter_info
+
+  return None
+
+CompilerFilterInfo = NamedTuple('CompilerFilterInfo', [('isa', str), ('status', str), ('reason', str)])
+
+def find_all_compiler_filters(dexopt_state: DexoptState, package: str) -> List[CompilerFilterInfo]:
+
+  lst = []
+  package_tree = find_parse_subtree(dexopt_state, re.escape("[%s]" %package))
+
+  if not package_tree:
+    raise AssertionError("Could not find any package subtree for package %s" %(package))
+
+  print_utils.debug_print("package tree: ", package_tree)
+
+  for path_tree in find_parse_children(package_tree, "path: "):
+    print_utils.debug_print("path tree: ", path_tree)
+
+    matchre = re.compile("([^:]+):\s+\[status=([^\]]+)\]\s+\[reason=([^\]]+)\]")
+
+    for isa_node in find_parse_children(path_tree, matchre):
+
+      matches = re.match(matchre, isa_node.label).groups()
+
+      info = CompilerFilterInfo(*matches)
+      lst.append(info)
+
+  return lst
+
+def main() -> int:
+  opts = parse_options()
+  cmd_utils._debug = opts.debug
+  if _DEBUG_FORCE is not None:
+    cmd_utils._debug = _DEBUG_FORCE
+  print_utils.debug_print("parsed options: ", opts)
+
+  # Note: This can often 'fail' if the package isn't actually installed.
+  package_dumpsys = remote_dumpsys_package(opts.package, opts.simulate)
+  print_utils.debug_print("package dumpsys: ", package_dumpsys)
+  dumpsys_parse_tree = parse_tab_tree(package_dumpsys, package_dumpsys)
+  print_utils.debug_print("parse tree: ", dumpsys_parse_tree)
+  dexopt_state = parse_dexopt_state(dumpsys_parse_tree)
+
+  filter = find_first_compiler_filter(dexopt_state, opts.package, opts.instruction_set)
+
+  if filter:
+    print(filter.status, end=' ')
+    print(filter.reason, end=' ')
+    print(filter.isa)
+  else:
+    print("ERROR: Could not find any compiler-filter for package %s, isa %s" %(opts.package, opts.instruction_set), file=sys.stderr)
+    return 1
+
+  return 0
+
+if __name__ == '__main__':
+  sys.exit(main())
diff --git a/startop/scripts/app_startup/query_compiler_filter_test.py b/startop/scripts/app_startup/query_compiler_filter_test.py
new file mode 100755
index 0000000..a751a43
--- /dev/null
+++ b/startop/scripts/app_startup/query_compiler_filter_test.py
@@ -0,0 +1,116 @@
+#!/usr/bin/env python3
+#
+# Copyright 2018, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""
+Unit tests for the query_compiler_filter.py script.
+
+Install:
+  $> sudo apt-get install python3-pytest   ##  OR
+  $> pip install -U pytest
+See also https://docs.pytest.org/en/latest/getting-started.html
+
+Usage:
+  $> ./query_compiler_filter.py
+  $> pytest query_compiler_filter.py
+  $> python -m pytest query_compiler_filter.py
+
+See also https://docs.pytest.org/en/latest/usage.html
+"""
+
+# global imports
+from contextlib import contextmanager
+import io
+import shlex
+import sys
+import typing
+
+# pip imports
+import pytest
+
+# local imports
+import query_compiler_filter as qcf
+
+@contextmanager
+def redirect_stdout_stderr():
+  """Redirect stdout/stderr to a new StringIO for duration of context."""
+  old_stdout = sys.stdout
+  old_stderr = sys.stderr
+  new_stdout = io.StringIO()
+  sys.stdout = new_stdout
+  new_stderr = io.StringIO()
+  sys.stderr = new_stderr
+  try:
+    yield (new_stdout, new_stderr)
+  finally:
+    sys.stdout = old_stdout
+    sys.stderr = old_stderr
+    # Seek back to the beginning so we can read whatever was written into it.
+    new_stdout.seek(0)
+    new_stderr.seek(0)
+
+@contextmanager
+def replace_argv(argv):
+  """ Temporarily replace argv for duration of this context."""
+  old_argv = sys.argv
+  sys.argv = [sys.argv[0]] + argv
+  try:
+    yield
+  finally:
+    sys.argv = old_argv
+
+def exec_main(argv):
+  """Run the query_compiler_filter main function with the provided arguments.
+
+  Returns the stdout result when successful, assertion failure otherwise.
+  """
+  try:
+    with redirect_stdout_stderr() as (the_stdout, the_stderr):
+      with replace_argv(argv):
+        code = qcf.main()
+    assert 0 == code, the_stderr.readlines()
+
+    all_lines = the_stdout.readlines()
+    return "".join(all_lines)
+  finally:
+    the_stdout.close()
+    the_stderr.close()
+
+def test_query_compiler_filter():
+  # no --instruction-set specified: provide whatever was the 'first' filter.
+  assert exec_main(['--simulate',
+                    '--package', 'com.google.android.apps.maps']) == \
+      "speed-profile unknown arm64\n"
+
+  # specifying an instruction set finds the exact compiler filter match.
+  assert exec_main(['--simulate',
+                    '--package', 'com.google.android.apps.maps',
+                    '--instruction-set', 'arm64']) == \
+      "speed-profile unknown arm64\n"
+
+  assert exec_main(['--simulate',
+                    '--package', 'com.google.android.apps.maps',
+                    '--instruction-set', 'arm']) == \
+      "speed first-boot arm\n"
+
+  assert exec_main(['--simulate',
+                    '--debug',
+                    '--package', 'com.google.android.apps.maps',
+                    '--instruction-set', 'x86']) == \
+      "quicken install x86\n"
+
+if __name__ == '__main__':
+  pytest.main()
diff --git a/startop/scripts/app_startup/run_app_with_prefetch b/startop/scripts/app_startup/run_app_with_prefetch
new file mode 100755
index 0000000..31f6253
--- /dev/null
+++ b/startop/scripts/app_startup/run_app_with_prefetch
@@ -0,0 +1,487 @@
+#!/bin/bash
+#
+# Copyright 2018, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+usage() {
+    cat <<EOF
+Usage: run_app_with_prefetch --package <name> [OPTIONS]...
+
+    -p, --package <name>        package of the app to test
+    -a, --activity <name>       activity to use
+    -h, --help                  usage information (this)
+    -v, --verbose               enable extra verbose printing
+    -i, --input <file>          trace file protobuf (default 'TraceFile.pb')
+    -r, --readahead <mode>      cold, warm, fadvise, mlock (default 'warm')
+    -w, --when <when>           aot or jit (default 'jit')
+    -c, --count <count>         how many times to run (default 1)
+    -s, --sleep <sec>           how long to sleep after readahead
+    -t, --timeout <sec>         how many seconds to timeout in between each app run (default 10)
+    -o, --output <file.csv>     what file to write the performance results into as csv (default stdout)
+EOF
+}
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+source "$DIR/../iorap/common"
+
+report_fully_drawn="n"
+needs_trace_file="n"
+input_file=""
+package=""
+mode='warm'
+count=2
+sleep_time=2
+timeout=10
+output="" # stdout by default
+when="jit"
+parse_arguments() {
+  while [[ $# -gt 0 ]]; do
+    case "$1" in
+      -h|--help)
+        usage
+        exit 0
+        ;;
+      -p|--package)
+        package="$2"
+        shift
+        ;;
+      -a|--activity)
+        activity="$2"
+        shift
+        ;;
+      -i|--input)
+        input_file="$2"
+        shift
+        ;;
+      -v|--verbose)
+        export verbose="y"
+        ;;
+      -r|--readahead)
+        mode="$2"
+        shift
+        ;;
+      -rfd|--reportfullydrawn)
+        report_fully_drawn="y"
+        shift
+        ;;
+      -c|--count)
+        count="$2"
+        ((count+=1))
+        shift
+        ;;
+      -s|--sleep)
+        sleep_time="$2"
+        shift
+        ;;
+      -t|--timeout)
+        timeout="$2"
+        shift
+        ;;
+      -o|--output)
+        output="$2"
+        shift
+        ;;
+      -w|--when)
+        when="$2"
+        shift
+        ;;
+      --compiler-filter)
+        compiler_filter="$2"
+        shift
+        ;;
+      *)
+        echo "Invalid argument: $1" >&2
+        exit 1
+    esac
+    shift
+  done
+
+  if [[ $when == "aot" ]]; then
+    # TODO: re-implement aot later for experimenting.
+    echo "Error: --when $when is unsupported" >&2
+    exit 1
+  elif [[ $when != "jit" ]]; then
+    echo "Error: --when must be one of (aot jit)." >&2
+    exit 1
+  fi
+}
+
+echo_to_output_file() {
+  if [[ "x$output" != x ]]; then
+    echo "$@" >> $output
+  fi
+  # Always echo to stdout as well.
+  echo "$@"
+}
+
+find_package_path() {
+  local pkg="$1"
+
+  res="$(adb shell find "/data/app/$pkg"-'*' -maxdepth 0 2> /dev/null)"
+  if [[ -z $res ]]; then
+    res="$(adb shell find "/system/app/$pkg"-'*' -maxdepth 0 2> /dev/null)"
+  fi
+  echo "$res"
+}
+
+# Main entry point
+if [[ $# -eq 0 ]]; then
+  usage
+  exit 1
+else
+  parse_arguments "$@"
+
+  # if we do not have have package exit early with an error
+  [[ "$package" == "" ]] && echo "--package not specified" 1>&2 && exit 1
+
+  if [[ $mode != "cold" && $mode != "warm" ]]; then
+    needs_trace_file="y"
+    if [[ -z "$input_file" ]] || ! [[ -f $input_file ]]; then
+      echo "--input not specified" 1>&2
+      exit 1
+    fi
+  fi
+
+  if [[ "$activity" == "" ]]; then
+    activity="$(get_activity_name "$package")"
+    if [[ "$activity" == "" ]]; then
+      echo "Activity name could not be found, invalid package name?" 1>&2
+      exit 1
+    else
+      verbose_print "Activity name inferred: " "$activity"
+    fi
+  fi
+fi
+
+adb root > /dev/null
+
+if [[ ($when == jit) || ($when == aot) ]] && [[ "$(adb shell getenforce)" != "Permissive" ]]; then
+  echo "Disable selinux permissions and restart framework."
+  adb shell setenforce 0
+  adb shell stop
+  adb shell start
+  adb wait-for-device
+fi
+
+# TODO: set performance governor etc, preferrably only once
+# before every single app run.
+
+# Kill everything before running.
+remote_pkill "$package"
+sleep 1
+
+timings_array=()
+
+package_path="$(find_package_path "$package")"
+if [[ $? -ne 0 ]]; then
+  echo "Failed to detect package path for '$package'" >&2
+  exit 1
+fi
+verbose_print "Package was in path '$package_path'"
+
+application_trace_file_path="$package_path/TraceFile.pb"
+trace_file_directory="$package_path"
+if [[ $needs_trace_file == y ]]; then
+  # system server always passes down the package path in a hardcoded spot.
+  if [[ $when == "jit" ]]; then
+    if ! iorapd_compiler_install_trace_file "$package" "$activity" "$input_file"; then
+      echo "Error: Failed to install compiled TraceFile.pb for '$package/$activity'" >&2
+      exit 1
+    fi
+    keep_application_trace_file="y"
+  else
+    echo "TODO: --readahead=aot is non-functional and needs to be fixed." >&2
+    exit 1
+    # otherwise use a temporary directory to get normal non-jit behavior.
+    trace_file_directory="/data/local/tmp/prefetch/$package"
+    adb shell mkdir -p "$trace_file_directory"
+    verbose_print  adb push "$input_file" "$trace_file_directory/TraceFile.pb"
+    adb push "$input_file" "$trace_file_directory/TraceFile.pb"
+  fi
+fi
+
+# Everything other than JIT: remove the trace file,
+# otherwise system server activity hints will kick in
+# and the new just-in-time app pre-warmup will happen.
+if [[ $keep_application_trace_file == "n" ]]; then
+  iorapd_compiler_purge_trace_file "$package" "$activity"
+fi
+
+# Perform AOT readahead/pinning/etc when an application is about to be launched.
+# For JIT readahead, we allow the system to handle it itself (this is a no-op).
+#
+# For warm, cold, etc modes which don't need readahead this is always a no-op.
+perform_aot() {
+  local the_when="$1" # user: aot, jit
+  local the_mode="$2" # warm, cold, fadvise, mlock, etc.
+
+  # iorapd readahead for jit+(mlock/fadvise)
+  if [[ $the_when == "jit" && $the_mode != 'warm' && $the_mode != 'cold' ]]; then
+    iorapd_readahead_enable
+    return 0
+  fi
+
+  if [[ $the_when != "aot" ]]; then
+    # TODO: just in time implementation.. should probably use system server.
+    return 0
+  fi
+
+  # any non-warm/non-cold modes should use the iorap-activity-hint wrapper script.
+  if [[ $the_mode != 'warm' && $the_mode != 'cold' ]]; then
+
+    # TODO: add activity_hint_sender.exp
+    verbose_print "starting with package=$package package_path=$trace_file_directory"
+    coproc hint_sender_fd { $ANDROID_BUILD_TOP/system/iorap/src/sh/activity_hint_sender.exp "$package" "$trace_file_directory" "$the_mode"; }
+    hint_sender_pid=$!
+    verbose_print "Activity hint sender began"
+
+    notification_success="n"
+    while read -r -u "${hint_sender_fd[0]}" hint_sender_output; do
+      verbose_print "$hint_sender_output"
+      if [[ "$hint_sender_output" == "Press any key to send completed event..."* ]]; then
+        verbose_print "WE DID SEE NOTIFICATION SUCCESS."
+        notification_success='y'
+        # Give it some time to actually perform the readaheads.
+        sleep $sleep_time
+        break
+      fi
+    done
+
+    if [[ $notification_success == 'n' ]]; then
+      echo "[FATAL] Activity hint notification failed." 1>&2
+      exit 1
+    fi
+  fi
+}
+
+# Perform cleanup at the end of each loop iteration.
+perform_post_launch_cleanup() {
+  local the_when="$1" # user: aot, jit
+  local the_mode="$2" # warm, cold, fadvise, mlock, etc.
+  local logcat_timestamp="$3"  # timestamp from before am start.
+  local res
+
+  if [[ $the_when != "aot" ]]; then
+    if [[ $the_mode != 'warm' && $the_mode != 'cold' ]]; then
+      # Validate that readahead completes.
+      # If this fails for some reason, then this will also discard the timing of the run.
+      iorapd_readahead_wait_until_finished "$package" "$activity" "$logcat_timestamp" "$timeout"
+      res=$?
+
+      iorapd_readahead_disable
+
+      return $res
+    fi
+    # Don't need to do anything for warm or cold.
+    return 0
+  fi
+
+  # any non-warm/non-cold modes should use the iorap-activity-hint wrapper script.
+  if [[ $the_mode != 'warm' && $the_mode != 'cold' ]]; then
+    # Clean up the hint sender by telling it that the launch was completed,
+    # and to shutdown the watcher.
+    echo "Done\n" >&"${hint_sender_fd[1]}"
+
+    while read -r -u "${hint_sender_fd[0]}" hint_sender_output; do
+      verbose_print "$hint_sender_output"
+    done
+
+    wait $hint_sender_pid
+  fi
+}
+
+configure_compiler_filter() {
+  local the_compiler_filter="$1"
+  local the_package="$2"
+  local the_activity="$3"
+
+  if [[ -z $the_compiler_filter ]]; then
+    verbose_print "No --compiler-filter specified, don't need to force it."
+    return 0
+  fi
+
+  local current_compiler_filter_info="$("$DIR"/query_compiler_filter.py --package "$the_package")"
+  local res=$?
+  if [[ $res -ne 0 ]]; then
+    return $res
+  fi
+
+  local current_compiler_filter
+  local current_reason
+  local current_isa
+  read current_compiler_filter current_reason current_isa <<< "$current_compiler_filter_info"
+
+  verbose_print "Compiler Filter="$current_compiler_filter "Reason="$current_reason "Isa="$current_isa
+
+  # Don't trust reasons that aren't 'unknown' because that means we didn't manually force the compilation filter.
+  # (e.g. if any automatic system-triggered compilations are not unknown).
+  if [[ $current_reason != "unknown" ]] || [[ $current_compiler_filter != $the_compiler_filter ]]; then
+    verbose_print "$DIR"/force_compiler_filter --compiler-filter "$the_compiler_filter" --package "$the_package" --activity "$the_activity"
+    "$DIR"/force_compiler_filter --compiler-filter "$the_compiler_filter" --package "$the_package" --activity "$the_activity"
+    res=$?
+  else
+    verbose_print "Queried compiler-filter matched requested compiler-filter, skip forcing."
+    res=0
+  fi
+
+  return $res
+}
+
+# Ensure the APK is currently compiled with whatever we passed in via --compiler-filter.
+# No-op if this option was not passed in.
+configure_compiler_filter "$compiler_filter" "$package" "$activity" || exit 1
+
+# convert 'a=b\nc=d\ne=f\n...' into 'b,d,f,...'
+parse_metrics_output_string() {
+  # single string with newlines in it.
+  local input="$1"
+
+  local metric_name
+  local metric_value
+  local rest
+
+  local all_metrics=()
+
+  # (n1=v1 n2=v2 n3=v3 ...)
+  readarray -t all_metrics <<< "$input"
+
+  local kv_pair=()
+  local i
+
+  for i in "${all_metrics[@]}"
+  do
+    verbose_print "parse_metrics_output: element '$i'"
+    # name=value
+
+    IFS='=' read -r metric_name metric_value rest <<< "$i"
+
+    verbose_print "parse_metrics_output: metric_value '$metric_value'"
+
+    # (value1 value2 value3 ...)
+    all_metrics+=(${metric_value})
+  done
+
+  # "value1,value2,value3,..."
+  join_by ',' "${all_metrics[@]}"
+}
+
+# convert 'a=b\nc=d\ne=f\n... into b,d,f,...'
+parse_metrics_output() {
+  local metric_name
+  local metric_value
+  local rest
+
+  local all_metrics=()
+
+  while IFS='=' read -r metric_name metric_value rest; do
+    verbose_print "metric: $metric_name, value: $metric_value; rest: $rest"
+    all_metrics+=($metric_value)
+  done
+
+  join_by ',' "${all_metrics[@]}"
+}
+
+# convert 'a=b\nc=d\ne=f\n... into b,d,f,...'
+parse_metrics_header() {
+  local metric_name
+  local metric_value
+  local rest
+
+  local all_metrics=()
+
+  while IFS='=' read -r metric_name metric_value rest; do
+    verbose_print "metric: $metric_name, value: $metric_value; rest: $rest"
+    all_metrics+=($metric_name)
+  done
+
+  join_by ',' "${all_metrics[@]}"
+}
+
+if [[ $report_fully_drawn == y ]]; then
+  metrics_header="$("$DIR/parse_metrics" --package "$package" --activity "$activity" --simulate --reportfullydrawn | parse_metrics_header)"
+else
+  metrics_header="$("$DIR/parse_metrics" --package "$package" --activity "$activity" --simulate | parse_metrics_header)"
+fi
+
+# TODO: This loop logic could probably be moved into app_startup_runner.py
+for ((i=0;i<count;++i)) do
+  verbose_print "=========================================="
+  verbose_print "====         ITERATION $i             ===="
+  verbose_print "=========================================="
+  if [[ $mode != "warm" ]]; then
+    # The package must be killed **before** we drop caches, otherwise pages will stay resident.
+    verbose_print "Kill package for non-warm start."
+    remote_pkill "$package"
+    verbose_print "Drop caches for non-warm start."
+    # Drop all caches to get cold starts.
+    adb shell "echo 3 > /proc/sys/vm/drop_caches"
+  fi
+
+  perform_aot "$when" "$mode"
+
+  verbose_print "Running with timeout $timeout"
+
+  pre_launch_timestamp="$(logcat_save_timestamp)"
+
+  # TODO: multiple metrics output.
+
+if [[ $report_fully_drawn == y ]]; then
+  total_time="$(timeout $timeout "$DIR/launch_application" "$package" "$activity" | "$DIR/parse_metrics" --package "$package" --activity "$activity" --timestamp "$pre_launch_timestamp" --reportfullydrawn | parse_metrics_output)"
+else
+  total_time="$(timeout $timeout "$DIR/launch_application" "$package" "$activity" | "$DIR/parse_metrics" --package "$package" --activity "$activity" --timestamp "$pre_launch_timestamp" | parse_metrics_output)"
+fi
+
+  if [[ $? -ne 0 ]]; then
+    echo "WARNING: Skip bad result, try iteration again." >&2
+    ((i=i-1))
+    continue
+  fi
+
+  perform_post_launch_cleanup "$when" "$mode" "$pre_launch_timestamp"
+
+  if [[ $? -ne 0 ]]; then
+    echo "WARNING: Skip bad cleanup, try iteration again." >&2
+    ((i=i-1))
+    continue
+  fi
+
+  echo "Iteration $i. Total time was: $total_time"
+
+  timings_array+=("$total_time")
+done
+
+# drop the first result which is usually garbage.
+timings_array=("${timings_array[@]:1}")
+
+# Print the CSV header first.
+echo_to_output_file "$metrics_header"
+
+# Print out interactive/debugging timings and averages.
+# Other scripts should use the --output flag and parse the CSV.
+for tim in "${timings_array[@]}"; do
+  echo_to_output_file "$tim"
+done
+
+if [[ x$output != x ]]; then
+  echo " Saved results to '$output'"
+fi
+
+if [[ $needs_trace_file == y ]] ; then
+  iorapd_compiler_purge_trace_file "$package" "$activity"
+fi
+
+# Kill the process to ensure AM isn't keeping it around.
+remote_pkill "$package"
+
+exit 0
diff --git a/startop/scripts/app_startup/run_app_with_prefetch.py b/startop/scripts/app_startup/run_app_with_prefetch.py
new file mode 100755
index 0000000..2f1eff2
--- /dev/null
+++ b/startop/scripts/app_startup/run_app_with_prefetch.py
@@ -0,0 +1,230 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Runner of one test given a setting.
+
+Run app and gather the measurement in a certain configuration.
+Print the result to stdout.
+See --help for more details.
+
+Sample usage:
+  $> ./python run_app_with_prefetch.py  -p com.android.settings -a
+     com.android.settings.Settings -r fadvise -i input
+
+"""
+
+import argparse
+import os
+import sys
+import time
+from typing import List, Tuple, Optional
+
+# local imports
+import lib.adb_utils as adb_utils
+from lib.app_runner import AppRunner, AppRunnerListener
+
+# global variables
+DIR = os.path.abspath(os.path.dirname(__file__))
+
+sys.path.append(os.path.dirname(DIR))
+import lib.print_utils as print_utils
+import lib.cmd_utils as cmd_utils
+import iorap.lib.iorapd_utils as iorapd_utils
+
+class PrefetchAppRunner(AppRunnerListener):
+  def __init__(self,
+               package: str,
+               activity: Optional[str],
+               readahead: str,
+               compiler_filter: Optional[str],
+               timeout: Optional[int],
+               simulate: bool,
+               debug: bool,
+               input:Optional[str],
+               **kwargs):
+    self.app_runner = AppRunner(package,
+                                activity,
+                                compiler_filter,
+                                timeout,
+                                simulate)
+    self.app_runner.add_callbacks(self)
+
+    self.simulate = simulate
+    self.readahead = readahead
+    self.debug = debug
+    self.input = input
+    print_utils.DEBUG = self.debug
+    cmd_utils.SIMULATE = self.simulate
+
+
+  def run(self) -> Optional[List[Tuple[str]]]:
+    """Runs an app.
+
+    Returns:
+      A list of (metric, value) tuples.
+    """
+    return self.app_runner.run()
+
+  def preprocess(self):
+    passed = self.validate_options()
+    if not passed:
+      return
+
+    # Sets up adb environment.
+    adb_utils.root()
+    adb_utils.disable_selinux()
+    time.sleep(1)
+
+    # Kill any existing process of this app
+    adb_utils.pkill(self.app_runner.package)
+
+    if self.readahead != 'warm':
+      print_utils.debug_print('Drop caches for non-warm start.')
+      # Drop all caches to get cold starts.
+      adb_utils.vm_drop_cache()
+
+    if self.readahead != 'warm' and self.readahead != 'cold':
+      iorapd_utils.enable_iorapd_readahead()
+
+  def postprocess(self, pre_launch_timestamp: str):
+    passed = self._perform_post_launch_cleanup(pre_launch_timestamp)
+    if not passed and not self.app_runner.simulate:
+      print_utils.error_print('Cannot perform post launch cleanup!')
+      return None
+
+    # Kill any existing process of this app
+    adb_utils.pkill(self.app_runner.package)
+
+  def _perform_post_launch_cleanup(self, logcat_timestamp: str) -> bool:
+    """Performs cleanup at the end of each loop iteration.
+
+    Returns:
+      A bool indicates whether the cleanup succeeds or not.
+    """
+    if self.readahead != 'warm' and self.readahead != 'cold':
+      passed = iorapd_utils.wait_for_iorapd_finish(self.app_runner.package,
+                                                   self.app_runner.activity,
+                                                   self.app_runner.timeout,
+                                                   self.debug,
+                                                   logcat_timestamp)
+
+      if not passed:
+        return passed
+
+      return iorapd_utils.disable_iorapd_readahead()
+
+    # Don't need to do anything for warm or cold.
+    return True
+
+  def metrics_selector(self, am_start_output: str,
+                       pre_launch_timestamp: str) -> str:
+    """Parses the metric after app startup by reading from logcat in a blocking
+    manner until all metrics have been found".
+
+    Returns:
+      the total time and displayed time of app startup.
+      For example: "TotalTime=123\nDisplayedTime=121
+    """
+    total_time = AppRunner.parse_total_time(am_start_output)
+    displayed_time = adb_utils.blocking_wait_for_logcat_displayed_time(
+        pre_launch_timestamp, self.app_runner.package, self.app_runner.timeout)
+
+    return 'TotalTime={}\nDisplayedTime={}'.format(total_time, displayed_time)
+
+  def validate_options(self) -> bool:
+    """Validates the activity and trace file if needed.
+
+    Returns:
+      A bool indicates whether the activity is valid.
+    """
+    needs_trace_file = self.readahead != 'cold' and self.readahead != 'warm'
+    if needs_trace_file and (self.input is None or
+                             not os.path.exists(self.input)):
+      print_utils.error_print('--input not specified!')
+      return False
+
+    # Install necessary trace file. This must be after the activity checking.
+    if needs_trace_file:
+      passed = iorapd_utils.iorapd_compiler_install_trace_file(
+          self.app_runner.package, self.app_runner.activity, self.input)
+      if not cmd_utils.SIMULATE and not passed:
+        print_utils.error_print('Failed to install compiled TraceFile.pb for '
+                                '"{}/{}"'.
+                                    format(self.app_runner.package,
+                                           self.app_runner.activity))
+        return False
+
+    return True
+
+
+
+def parse_options(argv: List[str] = None):
+  """Parses command line arguments and return an argparse Namespace object."""
+  parser = argparse.ArgumentParser(
+      description='Run an Android application once and measure startup time.'
+  )
+
+  required_named = parser.add_argument_group('required named arguments')
+  required_named.add_argument('-p', '--package', action='store', dest='package',
+                              help='package of the application', required=True)
+
+  # optional arguments
+  # use a group here to get the required arguments to appear 'above' the
+  # optional arguments in help.
+  optional_named = parser.add_argument_group('optional named arguments')
+  optional_named.add_argument('-a', '--activity', action='store',
+                              dest='activity',
+                              help='launch activity of the application')
+  optional_named.add_argument('-s', '--simulate', dest='simulate',
+                              action='store_true',
+                              help='simulate the process without executing '
+                                   'any shell commands')
+  optional_named.add_argument('-d', '--debug', dest='debug',
+                              action='store_true',
+                              help='Add extra debugging output')
+  optional_named.add_argument('-i', '--input', action='store', dest='input',
+                              help='perfetto trace file protobuf',
+                              default='TraceFile.pb')
+  optional_named.add_argument('-r', '--readahead', action='store',
+                              dest='readahead',
+                              help='which readahead mode to use',
+                              default='cold',
+                              choices=('warm', 'cold', 'mlock', 'fadvise'))
+  optional_named.add_argument('-t', '--timeout', dest='timeout', action='store',
+                              type=int,
+                              help='Timeout after this many seconds when '
+                                   'executing a single run.',
+                              default=10)
+  optional_named.add_argument('--compiler-filter', dest='compiler_filter',
+                              action='store',
+                              help='Which compiler filter to use.',
+                              default=None)
+
+  return parser.parse_args(argv)
+
+def main():
+  opts = parse_options()
+  runner = PrefetchAppRunner(**vars(opts))
+  result = runner.run()
+
+  if result is None:
+    return 1
+
+  print(result)
+  return 0
+
+if __name__ == '__main__':
+  sys.exit(main())
diff --git a/startop/scripts/app_startup/run_app_with_prefetch_test.py b/startop/scripts/app_startup/run_app_with_prefetch_test.py
new file mode 100644
index 0000000..8a588e4
--- /dev/null
+++ b/startop/scripts/app_startup/run_app_with_prefetch_test.py
@@ -0,0 +1,286 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+"""Unit tests for the run_app_with_prefetch_test.py script.
+
+Install:
+  $> sudo apt-get install python3-pytest   ##  OR
+  $> pip install -U pytest
+See also https://docs.pytest.org/en/latest/getting-started.html
+
+Usage:
+  $> ./run_app_with_prefetch_test.py
+  $> pytest run_app_with_prefetch_test.py
+  $> python -m pytest run_app_with_prefetch_test.py
+
+See also https://docs.pytest.org/en/latest/usage.html
+"""
+
+import io
+import os
+import shlex
+import sys
+import tempfile
+# global imports
+from contextlib import contextmanager
+
+# pip imports
+import pytest
+# local imports
+import run_app_with_prefetch as runner
+from mock import call, patch, Mock
+
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+from app_startup.lib.app_runner import AppRunner
+#
+# Argument Parsing Helpers
+#
+
+@contextmanager
+def ignore_stdout_stderr():
+  """Ignore stdout/stderr output for duration of this context."""
+  old_stdout = sys.stdout
+  old_stderr = sys.stderr
+  sys.stdout = io.StringIO()
+  sys.stderr = io.StringIO()
+  try:
+    yield
+  finally:
+    sys.stdout = old_stdout
+    sys.stderr = old_stderr
+
+@contextmanager
+def argparse_bad_argument(msg):
+  """Asserts that a SystemExit is raised when executing this context.
+
+  If the assertion fails, print the message 'msg'.
+  """
+  with pytest.raises(SystemExit, message=msg):
+    with ignore_stdout_stderr():
+      yield
+
+def assert_bad_argument(args, msg):
+  """Asserts that the command line arguments in 'args' are malformed.
+
+    Prints 'msg' if the assertion fails.
+  """
+  with argparse_bad_argument(msg):
+    parse_args(args)
+
+def parse_args(args):
+  """
+    :param args: command-line like arguments as a single string
+    :return:  dictionary of parsed key/values
+    """
+  # "-a b -c d"    => ['-a', 'b', '-c', 'd']
+  return vars(runner.parse_options(shlex.split(args)))
+
+def default_dict_for_parsed_args(**kwargs):
+  """Combines it with all of the "optional" parameters' default values."""
+  d = {
+    'readahead': 'cold',
+    'simulate': None,
+    'simulate': False,
+    'debug': False,
+    'input': 'TraceFile.pb',
+    'timeout': 10,
+    'compiler_filter': None,
+    'activity': None
+  }
+  d.update(kwargs)
+  return d
+
+def default_mock_dict_for_parsed_args(include_optional=True, **kwargs):
+  """Combines default dict with all optional parameters with some mock required
+    parameters.
+    """
+  d = {'package': 'com.fake.package'}
+  if include_optional:
+    d.update(default_dict_for_parsed_args())
+  d.update(kwargs)
+  return d
+
+def parse_optional_args(str):
+  """
+    Parses an argument string which already includes all the required arguments
+    in default_mock_dict_for_parsed_args.
+  """
+  req = '--package com.fake.package'
+  return parse_args('%s %s' % (req, str))
+
+def test_argparse():
+  # missing arguments
+  assert_bad_argument('', '-p are required')
+
+  # required arguments are parsed correctly
+  ad = default_dict_for_parsed_args  # assert dict
+  assert parse_args('--package xyz') == ad(package='xyz')
+
+  assert parse_args('-p xyz') == ad(package='xyz')
+
+  assert parse_args('-p xyz -s') == ad(package='xyz', simulate=True)
+  assert parse_args('-p xyz --simulate') == ad(package='xyz', simulate=True)
+
+  # optional arguments are parsed correctly.
+  mad = default_mock_dict_for_parsed_args  # mock assert dict
+  assert parse_optional_args('--input trace.pb') == mad(input='trace.pb')
+
+  assert parse_optional_args('--compiler-filter speed') == \
+         mad(compiler_filter='speed')
+
+  assert parse_optional_args('-d') == mad(debug=True)
+  assert parse_optional_args('--debug') == mad(debug=True)
+
+  assert parse_optional_args('--timeout 123') == mad(timeout=123)
+  assert parse_optional_args('-t 456') == mad(timeout=456)
+
+  assert parse_optional_args('-r warm') == mad(readahead='warm')
+  assert parse_optional_args('--readahead warm') == mad(readahead='warm')
+
+  assert parse_optional_args('-a act') == mad(activity='act')
+  assert parse_optional_args('--activity act') == mad(activity='act')
+
+def test_main():
+  args = '--package com.fake.package --activity act -s'
+  opts = runner.parse_options(shlex.split(args))
+  result = runner.PrefetchAppRunner(**vars(opts)).run()
+  assert result == [('TotalTime', '123')]
+
+def _mocked_run_shell_command(*args, **kwargs):
+  if args[0] == 'adb shell ps | grep "music" | awk \'{print $2;}\'':
+    return (True, '9999')
+  else:
+    return (True, '')
+
+def test_preprocess_no_cache_drop():
+  with patch('lib.cmd_utils.run_shell_command',
+             new_callable=Mock) as mock_run_shell_command:
+    mock_run_shell_command.side_effect = _mocked_run_shell_command
+    prefetch_app_runner = runner.PrefetchAppRunner(package='music',
+                                                   activity='MainActivity',
+                                                   readahead='warm',
+                                                   compiler_filter=None,
+                                                   timeout=None,
+                                                   simulate=False,
+                                                   debug=False,
+                                                   input=None)
+
+    prefetch_app_runner.preprocess()
+
+    calls = [call('adb root'),
+             call('adb shell "getenforce"'),
+             call('adb shell "setenforce 0"'),
+             call('adb shell "stop"'),
+             call('adb shell "start"'),
+             call('adb wait-for-device'),
+             call('adb shell ps | grep "music" | awk \'{print $2;}\''),
+             call('adb shell "kill 9999"')]
+    mock_run_shell_command.assert_has_calls(calls)
+
+def test_preprocess_with_cache_drop():
+  with patch('lib.cmd_utils.run_shell_command',
+             new_callable=Mock) as mock_run_shell_command:
+    mock_run_shell_command.side_effect = _mocked_run_shell_command
+    prefetch_app_runner = runner.PrefetchAppRunner(package='music',
+                                                   activity='MainActivity',
+                                                   readahead='cold',
+                                                   compiler_filter=None,
+                                                   timeout=None,
+                                                   simulate=False,
+                                                   debug=False,
+                                                   input=None)
+
+    prefetch_app_runner.preprocess()
+
+    calls = [call('adb root'),
+             call('adb shell "getenforce"'),
+             call('adb shell "setenforce 0"'),
+             call('adb shell "stop"'),
+             call('adb shell "start"'),
+             call('adb wait-for-device'),
+             call('adb shell ps | grep "music" | awk \'{print $2;}\''),
+             call('adb shell "kill 9999"'),
+             call('adb shell "echo 3 > /proc/sys/vm/drop_caches"')]
+    mock_run_shell_command.assert_has_calls(calls)
+
+def test_preprocess_with_cache_drop_and_iorapd_enabled():
+  with patch('lib.cmd_utils.run_shell_command',
+             new_callable=Mock) as mock_run_shell_command:
+    mock_run_shell_command.side_effect = _mocked_run_shell_command
+
+    with tempfile.NamedTemporaryFile() as input:
+      prefetch_app_runner = runner.PrefetchAppRunner(package='music',
+                                                     activity='MainActivity',
+                                                     readahead='fadvise',
+                                                     compiler_filter=None,
+                                                     timeout=None,
+                                                     simulate=False,
+                                                     debug=False,
+                                                     input=input.name)
+
+      prefetch_app_runner.preprocess()
+
+      calls = [call('adb root'),
+               call('adb shell "getenforce"'),
+               call('adb shell "setenforce 0"'),
+               call('adb shell "stop"'),
+               call('adb shell "start"'),
+               call('adb wait-for-device'),
+               call(
+                   'adb shell ps | grep "music" | awk \'{print $2;}\''),
+               call('adb shell "kill 9999"'),
+               call('adb shell "echo 3 > /proc/sys/vm/drop_caches"'),
+               call('bash -c "source {}; iorapd_readahead_enable"'.
+                    format(AppRunner.IORAP_COMMON_BASH_SCRIPT))]
+      mock_run_shell_command.assert_has_calls(calls)
+
+@patch('lib.adb_utils.blocking_wait_for_logcat_displayed_time')
+@patch('lib.cmd_utils.run_shell_command')
+def test_postprocess_with_launch_cleanup(
+    mock_run_shell_command,
+    mock_blocking_wait_for_logcat_displayed_time):
+  mock_run_shell_command.side_effect = _mocked_run_shell_command
+  mock_blocking_wait_for_logcat_displayed_time.return_value = 123
+
+  with tempfile.NamedTemporaryFile() as input:
+    prefetch_app_runner = runner.PrefetchAppRunner(package='music',
+                                                   activity='MainActivity',
+                                                   readahead='fadvise',
+                                                   compiler_filter=None,
+                                                   timeout=10,
+                                                   simulate=False,
+                                                   debug=False,
+                                                   input=input.name)
+
+    prefetch_app_runner.postprocess('2019-07-02 23:20:06.972674825')
+
+    calls = [
+        call('bash -c "source {script_path}; '
+             'iorapd_readahead_wait_until_finished '
+             '\'{package}\' \'{activity}\' \'{timestamp}\' \'{timeout}\'"'.
+                 format(timeout=10,
+                        package='music',
+                        activity='MainActivity',
+                        timestamp='2019-07-02 23:20:06.972674825',
+                        script_path=AppRunner.IORAP_COMMON_BASH_SCRIPT)),
+        call('bash -c "source {}; iorapd_readahead_disable"'.
+             format(AppRunner.IORAP_COMMON_BASH_SCRIPT)),
+        call('adb shell ps | grep "music" | awk \'{print $2;}\''),
+        call('adb shell "kill 9999"')]
+    mock_run_shell_command.assert_has_calls(calls)
+
+if __name__ == '__main__':
+  pytest.main()
diff --git a/startop/scripts/app_startup/unlock_screen b/startop/scripts/app_startup/unlock_screen
new file mode 100755
index 0000000..478294c
--- /dev/null
+++ b/startop/scripts/app_startup/unlock_screen
@@ -0,0 +1,22 @@
+#!/bin/bash
+#
+# Copyright 2018, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This turns the screen on if it's off.
+# If it's on it does nothing unless its on the home screen, in which case it opens up some background
+# menu.
+#
+# However, this menu is ignored because "am start" commands still work as expected.
+adb shell input keyevent MENU
diff --git a/startop/scripts/iorap/analyze_prefetch_file.py b/startop/scripts/iorap/analyze_prefetch_file.py
new file mode 100755
index 0000000..343cd54
--- /dev/null
+++ b/startop/scripts/iorap/analyze_prefetch_file.py
@@ -0,0 +1,168 @@
+#!/usr/bin/env python3
+#
+# Copyright 2020, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import argparse
+import os
+import sys
+from typing import Dict, List, NamedTuple, Tuple
+
+DIR = os.path.abspath(os.path.dirname(__file__))
+sys.path.append(os.path.dirname(DIR))  # framework/base/startop/script
+import lib.print_utils as print_utils
+
+# Include generated protos.
+dir_name = os.path.dirname(os.path.realpath(__file__))
+sys.path.append(dir_name + "/generated")
+
+from TraceFile_pb2 import *
+
+def parse_options(argv: List[str] = None):
+  """Parses command line arguments and returns an argparse Namespace object."""
+  parser = argparse.ArgumentParser(description="Analyze compiled_trace iorap protos.")
+  required_named = parser.add_argument_group('required named arguments')
+
+  required_named.add_argument('-i', dest='input', metavar='FILE',
+                              help='Read protobuf file as input')
+
+  optional_named = parser.add_argument_group('optional named arguments')
+
+  optional_named.add_argument('-up', dest='upper_percent', type=float,
+                              default=95.0,
+                              help='Only show the top-most entries up to this value.')
+
+  optional_named.add_argument('-r', dest='raw', action='store_true',
+                              help='Output entire raw file.')
+  optional_named.add_argument('-o', dest='output',
+                              help='The results are stored into the output file')
+  optional_named.add_argument('-d', dest='debug', action='store_true'
+                              , help='Activity of the app to be compiled')
+
+  return parser.parse_args(argv)
+
+def open_iorap_prefetch_file(file_path: str) -> TraceFile:
+  with open(file_path, "rb") as f:
+    tf = TraceFile()
+    tf.ParseFromString(f.read())
+    return tf
+
+def print_stats_summary(trace_file: TraceFile, upper_percent):
+  tf_dict = convert_to_dict(trace_file)
+  print_utils.debug_print(tf_dict)
+
+  total_length = 0
+  summaries = []
+  for name, entries_list in tf_dict.items():
+    summary = entries_sum(entries_list)
+    summaries.append(summary)
+
+    total_length += summary.length
+
+  # Sort by length
+  summaries.sort(reverse=True, key=lambda s: s.length)
+
+  percent_sum = 0.0
+  skipped_entries = 0
+
+  print("===========================================")
+  print("Total length: {:,} bytes".format(total_length))
+  print("Displayed upper percent: {:0.2f}%".format(upper_percent))
+  print("===========================================")
+  print("")
+  print("name,length,percent_of_total,upper_percent")
+  for sum in summaries:
+    percent_of_total = (sum.length * 1.0) / (total_length * 1.0) * 100.0
+
+    percent_sum += percent_of_total
+
+    if percent_sum > upper_percent:
+      skipped_entries = skipped_entries + 1
+      continue
+
+    #print("%s,%d,%.2f%%" %(sum.name, sum.length, percent_of_total))
+    print("{:s},{:d},{:0.2f}%,{:0.2f}%".format(sum.name, sum.length, percent_of_total, percent_sum))
+
+  if skipped_entries > 0:
+    print("[WARNING] Skipped {:d} entries, use -up=100 to show everything".format(skipped_entries))
+
+  pass
+
+class FileEntry(NamedTuple):
+  id: int
+  name: str
+  offset: int
+  length: int
+
+class FileEntrySummary(NamedTuple):
+  name: str
+  length: int
+
+def entries_sum(entries: List[FileEntry]) -> FileEntrySummary:
+  if not entries:
+    return None
+
+  summary = FileEntrySummary(name=entries[0].name, length=0)
+  for entry in entries:
+    summary = FileEntrySummary(summary.name, summary.length + entry.length)
+
+  return summary
+
+def convert_to_dict(trace_file: TraceFile) -> Dict[str, FileEntry]:
+  trace_file_index = trace_file.index
+
+  # entries.id -> entry.file_name
+  entries_map = {}
+
+  index_entries = trace_file_index.entries
+  for entry in index_entries:
+    entries_map[entry.id] = entry.file_name
+
+  final_map = {}
+
+  file_entries_map = {}
+  file_entries = trace_file.list.entries
+  for entry in file_entries:
+    print_utils.debug_print(entry)
+
+    lst = file_entries_map.get(entry.index_id, [])
+    file_entries_map[entry.index_id] = lst
+
+    file_name = entries_map[entry.index_id]
+    file_entry = \
+        FileEntry(id=entry.index_id, name=file_name, offset=entry.file_offset, length=entry.file_length)
+
+    lst.append(file_entry)
+
+    final_map[file_name] = lst
+
+  return final_map
+
+def main(argv: List[str]) -> int:
+  opts = parse_options(argv[1:])
+  if opts.debug:
+    print_utils.DEBUG = opts.debug
+  print_utils.debug_print(opts)
+
+  prefetch_file = open_iorap_prefetch_file(opts.input)
+
+  if opts.raw:
+    print(prefetch_file)
+
+  print_stats_summary(prefetch_file, opts.upper_percent)
+
+  return 0
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv))
diff --git a/startop/scripts/iorap/collector b/startop/scripts/iorap/collector
new file mode 100755
index 0000000..3dc080a
--- /dev/null
+++ b/startop/scripts/iorap/collector
@@ -0,0 +1,403 @@
+#!/bin/bash
+#
+# Copyright 2017, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+APP_STARTUP_DIR="$DIR/../app_startup/"
+source "$DIR/common"
+
+usage() {
+    cat <<EOF
+Usage: collector [OPTIONS]...
+
+Runs an application, causes an iorap trace to be collected for it, and then invokes the iorap
+compiler to generate a TraceFile.pb.
+
+    -p, --package               package of the app to test
+    -a, --activity              activity of the app to test
+    -h, --help                  usage information (this)
+    -v, --verbose               enable extra verbose printing
+    -i, --inodes                path to inodes file (system/extras/pagecache/pagecache.py -d inodes)
+    -b, --trace_buffer_size     how big to make trace buffer size (default 32768)
+    -w, --wait_time             how long to run systrace for (default 10) in seconds
+    -c, --compiler-filter       override the compilation filter if set (default none)
+    -o, --output                output trace file protobuf (default 'TraceFile.pb')
+EOF
+}
+
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+trace_buffer_size=32768
+wait_time=10
+comp_filter=""
+output_dest="TraceFile.pb"
+
+parse_arguments() {
+  while [[ $# -gt 0 ]]; do
+    case "$1" in
+      -a|--activity)
+        activity="$2"
+        shift
+        ;;
+      -h|--help)
+        usage
+        exit 0
+        ;;
+      -p|--package)
+        package="$2"
+        shift
+        ;;
+      -i|--inodes)
+        inodes="$2"
+        shift
+        ;;
+      -b|--trace_buffer_size)
+        trace_buffer_size="$2"
+        shift
+        ;;
+      -w|--wait_time)
+        wait_time="$2"
+        shift
+        ;;
+      -c|--compiler-filter)
+        comp_filter="$2"
+        shift
+        ;;
+      -o|--output)
+        output_dest="$2"
+        shift
+        ;;
+      -v|--verbose)
+        verbose="y"
+        ;;
+    esac
+    shift
+  done
+}
+
+remote_pidof() {
+  local procname="$1"
+  adb shell ps | grep "$procname" | awk '{print $2;}'
+}
+
+remote_pkill() {
+  local procname="$1"
+  shift
+
+  local the_pids=$(remote_pidof "$procname")
+  local pid
+
+  for pid in $the_pids; do
+    verbose_print adb shell kill "$@" "$pid"
+    adb shell kill "$@" "$pid"
+  done
+}
+
+force_package_compilation() {
+  local arg_comp_filter="$1"
+  local arg_package="$2"
+
+  if [[ $arg_comp_filter == speed-profile ]]; then
+    # Force the running app to dump its profiles to disk.
+    remote_pkill "$arg_package" -SIGUSR1
+    sleep 1 # give some time for above to complete.
+  fi
+
+  adb shell cmd package compile -m "$arg_comp_filter" -f "$arg_package"
+}
+
+parse_package_dumpsys_line() {
+  local what_left="$1"
+  local what_right="$2"
+  local line="$3"
+
+  if [[ $line == *${what_left}*${what_right}* ]]; then
+    found="${line#*$what_left}"
+    found="${found%$what_right*}"
+    echo "$found"
+    return 0
+  fi
+
+  return 1
+}
+
+parse_package_dumpsys_section() {
+  local what_left="$1"
+  local what_right="$2"
+  shift
+  local lines="$@"
+
+  lines="${lines//$'\n'/}"
+
+  local new_lines=()
+
+  local current_line=""
+  local newline=n
+  local line
+  for line in "${lines[@]}"; do
+    if [[ $line == *: ]]; then
+      newline=y
+      current_line=""
+      new_lines+=("$current_line")
+
+      parse_package_dumpsys_line "$what_left" "$what_right" "$current_line" && return 0
+    else
+      # strip all spaces from the start
+      line="${line//$' '/}"
+      current_line+="$line"
+      #prepend to current line
+    fi
+  done
+  [[ "$current_line" != "" ]] && new_lines+=("$current_line")
+
+  parse_package_dumpsys_line "$what_left" "$what_right" "$current_line" && return 0
+
+  return 1
+}
+
+parse_package_compilation() {
+  local pkg="$1"
+#    [com.google.android.apps.maps]
+
+  local compilation_filter
+  local is_prebuilt
+  local isa
+  local etc
+
+  local ret_code
+
+  read compilation_filter is_prebuilt isa etc <<< "$("$APP_STARTUP_DIR"/query_compiler_filter.py --package "$pkg")"
+  ret_code=$?
+
+  if [[ $ret_code -eq 0 && x$compilation_filter != x ]]; then
+    verbose_print "Package compilation info for $pkg was '$compilation_filter'"
+    echo "$compilation_filter"
+    return 0
+  else
+    verbose_print "query failed ret code $ret_code filter=$compilation_filter"
+  fi
+
+  return $ret_code
+}
+
+# Main entry point
+if [[ $# -eq 0 ]]; then
+  usage
+  exit 1
+else
+  parse_arguments "$@"
+
+  # if we do not have have package exit early with an error
+  [[ "$package" == "" ]] && echo "--package not specified" 1>&2 && exit 1
+
+  if [[ -z "$inodes" ]] || ! [[ -f $inodes ]]; then
+    echo "--inodes not specified" 1>&2
+    exit 1
+  fi
+
+  if [[ "$activity" == "" ]]; then
+    activity="$(get_activity_name "$package")"
+    if [[ "$activity" == "" ]]; then
+      echo "Activity name could not be found, invalid package name?" 1>&2
+      exit 1
+    else
+      verbose_print "Activity name inferred: " "$activity"
+    fi
+  fi
+fi
+
+adb root > /dev/null
+
+if [[ "$(adb shell getenforce)" != "Permissive" ]]; then
+  adb shell setenforce 0
+  adb shell stop
+  adb shell start
+  adb wait-for-device
+fi
+
+compilation_was="$(parse_package_compilation "$package")"
+if [[ $? -ne 0 ]]; then
+  echo "Could not determine package compilation filter; was this package installed?" >&2
+  exit 1
+fi
+verbose_print "Package compilation: $compilation_was"
+
+# Cannot downgrade (e.g. from speed-profile to quicken) without forceful recompilation.
+# Forceful recompilation will recompile even if compilation filter was unchanged.
+# Therefore avoid recompiling unless the filter is actually different than what we asked for.
+if [[ "x$comp_filter" != "x" ]] && [[ "$compilation_was" != "$comp_filter" ]]; then
+  echo "Current compilation filter is '$compilation_was'; force recompile to '$comp_filter'" >&2
+  #TODO: this matching seems hopelessly broken, it will always recompile.
+
+  force_package_compilation "$comp_filter" "$package"
+fi
+
+# Drop all caches prior to beginning a systrace, otherwise we won't record anything already in pagecache.
+adb shell "echo 3 > /proc/sys/vm/drop_caches"
+
+trace_tmp_file="$(mktemp -t trace.XXXXXXXXX.html)"
+
+function finish {
+  [[ -f "$trace_tmp_file" ]] &&  rm "$trace_tmp_file"
+}
+trap finish EXIT
+
+launch_application_and_wait_for_trace() {
+  local package="$1"
+  local activity="$2"
+  local timeout=30 # seconds
+
+  # Ensure application isn't running already.
+  remote_pkill "$package"
+
+  # 5 second trace of Home screen causes
+  # a trace of the home screen.
+  # There is no way to abort the trace
+  # so just wait for it to complete instead.
+  sleep 30
+
+  local time_now="$(logcat_save_timestamp)"
+  local retcode=0
+
+  verbose_print "Drop caches for non-warm start."
+  # Drop all caches to get cold starts.
+  adb shell "echo 3 > /proc/sys/vm/drop_caches"
+
+  verbose_print "now launching application"
+  # Launch an application
+  "$APP_STARTUP_DIR"/launch_application "$package" "$activity"
+  retcode=$?
+  if [[ $retcode -ne 0 ]]; then
+    echo "FATAL: Application launch failed." >&2
+    return $retcode
+  fi
+
+  # This blocks until 'am start' returns at which point the application is
+  # already to be considered "started" as the first frame has been drawn.
+
+  # TODO: check for cold start w.r.t to activitymanager?
+
+  # Wait for application to start from the point of view of ActivityTaskManager.
+  local pattern="ActivityTaskManager: Displayed $package"
+  logcat_wait_for_pattern "$timeout" "$time_now" "$pattern"
+  retcode=$?
+  if [[ $retcode -ne 0 ]]; then
+    echo "FATAL: Could not find '$pattern' in logcat." >&2
+    return $retcode
+  fi
+
+  # Wait for iorapd to finish writing out the perfetto traces for this app.
+  iorapd_perfetto_wait_for_app_trace "$package" "$activity" "$timeout" "$time_now"
+  retcode=$?
+  if [[ $retcode -ne 0 ]]; then
+    echo "FATAL: Could not save perfetto app trace file." >&2
+    return $retcode
+  fi
+
+  verbose_print "iorapd has finished collecting app trace file for $package/$activity"
+}
+
+collector_main() {
+  # don't even bother trying to run anything until the screen is unlocked.
+  "$APP_STARTUP_DIR"/unlock_screen
+
+  # Don't mutate state while iorapd is running.
+  iorapd_stop || return $?
+
+  # Remove all existing metadata for a package/activity in iorapd.
+  iorapd_perfetto_purge_app_trace "$package" "$activity" || return $?
+  iorapd_compiler_purge_trace_file "$package" "$activity" || return $?
+
+  iorapd_perfetto_enable || return $?
+  iorapd_readahead_disable || return $?
+  iorapd_start || return $?
+
+  # Wait for perfetto trace to finished writing itself out.
+  launch_application_and_wait_for_trace "$package" "$activity" || return $?
+
+  # Pull the perfetto trace for manual inspection.
+  iorapd_perfetto_pull_trace_file "$package" "$activity" "perfetto_trace.pb"
+
+  # Compile the trace so that the next app run can use prefetching.
+  iorapd_compiler_for_app_trace "$package" "$activity" "$inodes" || return $?
+
+  # Save TraceFile.pb to local file.
+  iorapd_compiler_pull_trace_file "$package" "$activity" "$output_dest" || return $?
+  # Remove the TraceFile.pb from the device.
+  iorapd_compiler_purge_trace_file "$package" "$activity" || return $?
+
+  # TODO: better transactional support for restoring iorapd global properties
+  iorapd_perfetto_disable || return $?
+}
+
+collector_main "$@"
+
+verbose_print "Collector finished. Children: "
+if [[ $verbose == y ]]; then
+  jobs -p
+  ps f -g$$
+fi
+
+exit $?
+
+
+verbose_print "About to begin systrace"
+coproc systrace_fd {
+  # Disable stdout buffering since we need to know the output of systrace RIGHT AWAY.
+  stdbuf -oL "$ANDROID_BUILD_TOP"/external/chromium-trace/systrace.py --target=android -b "$trace_buffer_size" -t "$wait_time" am pagecache dalvik -o "$trace_tmp_file"
+}
+
+verbose_print "Systrace began"
+
+systrace_pid="$!"
+
+while read -r -u "${systrace_fd[0]}" systrace_output; do
+  verbose_print "$systrace_output"
+  if [[ "$systrace_output" == *"Starting tracing"* ]]; then
+    verbose_print "WE DID SEE STARTING TRACING."
+    break
+  fi
+done
+# Systrace has begun recording the tracing.
+# Run the application and collect the results.
+
+am_output="$(adb shell am start -S -W "$package"/"$activity")"
+if [[ $? -ne 0 ]]; then
+  echo "am start failed" >&2
+
+  exit 1
+fi
+
+verbose_print "$am_output"
+total_time="$(echo "$am_output" | grep 'TotalTime:' | sed 's/TotalTime: //g')"
+verbose_print "total time: $total_time"
+
+# Now wait for systrace to finish.
+
+wait "$systrace_pid" || { echo "Systrace finished before am start was finished, try a longer --wait_time"; exit 1; }
+verbose_print "Systrace has now finished"
+verbose_print "$(ls -la "$trace_tmp_file")"
+
+
+iorapd_perfetto_disable
+
+# Now that systrace has finished, convert the trace file html file to a protobuf.
+
+"$ANDROID_BUILD_TOP"/system/iorap/src/py/collector/trace_parser.py -i "$inodes" -t "$trace_tmp_file" -o "$output_dest" || exit 1
+
+echo "Trace file collection complete, trace file saved to \"$output_dest\"!" >&2
+
+finish
diff --git a/startop/scripts/iorap/common b/startop/scripts/iorap/common
new file mode 100755
index 0000000..387e45d
--- /dev/null
+++ b/startop/scripts/iorap/common
@@ -0,0 +1,253 @@
+#!/bin/bash
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+DIR_IORAP_COMMON="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+APP_STARTUP_DIR="$DIR_IORAP_COMMON/../app_startup/"
+source "$APP_STARTUP_DIR/lib/common"
+
+IORAPD_DATA_PATH="/data/misc/iorapd"
+
+iorapd_start() {
+  verbose_print 'iorapd_start'
+  adb shell start iorapd
+  sleep 1
+  # TODO: block until logcat prints successfully connecting
+}
+
+iorapd_stop() {
+  verbose_print 'iorapd_stop'
+  adb shell stop iorapd
+}
+
+iorapd_reset() {
+  iorapd_stop
+  iorapd_start
+}
+
+# Enable perfetto tracing.
+# Subsequent launches of an application will record a perfetto trace protobuf.
+iorapd_perfetto_enable() {
+  verbose_print 'enable perfetto'
+  adb shell setprop iorapd.perfetto.enable true
+  iorapd_reset # iorapd only reads this flag when initializing
+}
+
+# Disable perfetto tracing.
+# Subsequent launches of applications will no longer record perfetto trace protobufs.
+iorapd_perfetto_disable() {
+  verbose_print 'disable perfetto'
+  adb shell setprop iorapd.perfetto.enable false
+  iorapd_reset # iorapd only reads this flag when initializing
+}
+
+# Enable readahead
+# Subsequent launches of an application will be sped up by iorapd readahead prefetching
+# (Provided an appropriate compiled trace exists for that application)
+iorapd_readahead_enable() {
+  if [[ "$(adb shell getprop iorapd.readahead.enable)" == true ]]; then
+    verbose_print 'enable readahead [already enabled]'
+    return 0
+  fi
+  verbose_print 'enable readahead [reset iorapd]'
+  adb shell setprop iorapd.readahead.enable true
+  iorapd_reset # iorapd only reads this flag when initializing
+}
+
+# Disable readahead
+# Subsequent launches of an application will be not be sped up by iorapd readahead prefetching.
+iorapd_readahead_disable() {
+  if [[ "$(adb shell getprop iorapd.readahead.enable)" == false ]]; then
+    verbose_print 'disable readahead [already disabled]'
+    return 0
+  fi
+  verbose_print 'disable readahead [reset iorapd]'
+  adb shell setprop iorapd.readahead.enable false
+  iorapd_reset # iorapd only reads this flag when initializing
+}
+
+_iorapd_path_to_data_file() {
+  local package="$1"
+  local activity="$2"
+  local suffix="$3"
+
+  # Match logic of 'AppComponentName' in iorap::compiler C++ code.
+  echo "${IORAPD_DATA_PATH}/${package}%2F${activity}.${suffix}"
+}
+
+iorapd_perfetto_wait_for_app_trace() {
+  local package="$1"
+  local activity="$2"
+  local timeout="$3"
+  local timestamp="$4"
+
+  local remote_path="$(_iorapd_path_to_data_file "$package" "$activity" "perfetto_trace.pb")"
+
+  verbose_print "iorapd_perfetto_wait_for_app_trace on file '$remote_path'"
+
+  # see event_manager.cc
+  local pattern="Perfetto TraceBuffer saved to file: $remote_path"
+  logcat_wait_for_pattern "$timeout" "$timestamp" "$pattern"
+}
+
+# Purge all perfetto traces for a given application.
+iorapd_perfetto_purge_app_trace() {
+  local package="$1"
+  local activity="$2"
+
+  local remote_path="$(_iorapd_path_to_data_file "$package" "$activity" "perfetto_trace.pb")"
+
+  verbose_print 'iorapd-perfetto: purge app trace in ' "$remote_path"
+  adb shell "[[ -f '$remote_path' ]] && rm -f '$remote_path' || exit 0"
+}
+
+# Pull the remote perfetto trace file into a local file.
+iorapd_perfetto_pull_trace_file() {
+  local package="$1"
+  local activity="$2"
+  local output_file="$3" # local path
+
+  local compiled_path="$(_iorapd_path_to_data_file "$package" "$activity" "perfetto_trace.pb")"
+
+  if ! adb shell "[[ -f '$compiled_path' ]]"; then
+    echo "Error: Remote path '$compiled_path' invalid" >&2
+    return 1
+  fi
+  if ! mkdir -p "$(dirname "$output_file")"; then
+    echo "Error: Fail to make output directory for '$output_file'" >&2
+    return 1
+  fi
+  verbose_print adb pull "$compiled_path" "$output_file"
+  adb pull "$compiled_path" "$output_file"
+}
+
+# Compile a perfetto trace for a given application.
+# This requires the app has run at least once with perfetto tracing enabled.
+iorapd_compiler_for_app_trace() {
+  local package="$1"
+  local activity="$2"
+  local inodes="$3" # local path
+
+  # remote path calculations
+  local input_path="$(_iorapd_path_to_data_file "$package" "$activity" "perfetto_trace.pb")"
+  local compiled_path="$(_iorapd_path_to_data_file "$package" "$activity" "compiled_trace.tmp.pb")"
+  local compiled_path_final="$(_iorapd_path_to_data_file "$package" "$activity" "compiled_trace.pb")"
+
+  if ! adb shell "[[ -f '$input_path' ]]"; then
+    echo "Error: Missing perfetto traces; nothing to compile. Expected: '$input_path'" >&2
+    return 1
+  fi
+
+  if ! [[ -f $inodes ]]; then
+    # We could compile using 'diskscan' but it's non-deterministic, so refuse instead.
+    echo "Error: Missing inodes textcache at '$inodes'; refusing to compile." >&2
+    return 1
+  fi
+
+  # inodes file needs to be on the device for iorap.cmd.compiler to access it
+  local remote_inodes=/data/local/tmp/prefetch/inodes.txt
+  adb shell "mkdir -p \"$(dirname "$remote_inodes")\"" || return 1
+  verbose_print adb push "$inodes" "$remote_inodes"
+  adb push "$inodes" "$remote_inodes"
+
+  verbose_print 'iorapd-compiler: compile app trace in ' "$input_path"
+  verbose_print adb shell "iorap.cmd.compiler '$input_path' --inode-textcache '$remote_inodes' --output-proto '$compiled_path'"
+  adb shell "iorap.cmd.compiler '$input_path' --inode-textcache '$remote_inodes' --output-proto '$compiled_path'"
+  retcode=$?
+
+  # Don't overwrite the true 'compiled_trace.pb' unless the compiler completed without error.
+  # TODO: The native compiler code should be handling its own transaction-safety.
+  if [[ $retcode -eq 0 ]]; then
+    adb shell "mv '$compiled_path' '$compiled_path_final'"
+  else
+    adb shell "[[ -f '$compiled_path' ]] && rm -f '$compiled_path'"
+  fi
+
+  # Clean up inodes file we just pushed.
+#  adb shell "[[ -f '$remote_inodes' ]] && rm -f '$remote_inodes'"
+
+  return $retcode
+}
+
+# Pull the remote compiled trace file into a local file.
+iorapd_compiler_pull_trace_file() {
+  local package="$1"
+  local activity="$2"
+  local output_file="$3" # local path
+
+  local compiled_path="$(_iorapd_path_to_data_file "$package" "$activity" "compiled_trace.pb")"
+
+  if ! adb shell "[[ -f '$compiled_path' ]]"; then
+    echo "Error: Remote path '$compiled_path' invalid" >&2
+    return 1
+  fi
+  if ! mkdir -p "$(dirname "$output_file")"; then
+    echo "Error: Fail to make output directory for '$output_file'" >&2
+    return 1
+  fi
+  verbose_print adb pull "$compiled_path" "$output_file"
+  adb pull "$compiled_path" "$output_file"
+}
+
+# Install a compiled trace file.
+iorapd_compiler_install_trace_file() {
+  local package="$1"
+  local activity="$2"
+  local input_file="$3" # local path
+
+  # remote path calculations
+  local compiled_path="$(_iorapd_path_to_data_file "$package" "$activity" "compiled_trace.pb")"
+
+  if ! [[ -f $input_file ]]; then
+    echo "Error: File '$input_file' does not exist." >&2
+    return 1
+  fi
+
+  adb shell "mkdir -p \"$(dirname "$compiled_path")\"" || return 1
+
+  verbose_print adb push "$input_file" "$compiled_path"
+  adb push "$input_file" "$compiled_path"
+}
+
+iorapd_compiler_purge_trace_file() {
+  local package="$1"
+  local activity="$2"
+  local input_file="$3" # local path
+
+  local remote_path="$(_iorapd_path_to_data_file "$package" "$activity" "compiled_trace.pb")"
+
+  adb shell "[[ -f '$remote_path' ]] && rm -f '$remote_path' || exit 0"
+}
+
+# Blocks until the readahead for the requested package/activity has finished.
+# This assumes that the trace file was already installed, and also that
+# the application launched but not completed yet.
+iorapd_readahead_wait_until_finished() {
+  local package="$1"
+  local activity="$2"
+  local timestamp="$3"
+  local timeout="$4"
+
+  if [[ $# -lt 4 ]]; then
+    echo "FATAL: Expected 4 arguments (actual $# $@)" >&2
+    exit 1
+  fi
+
+  local remote_path="$(_iorapd_path_to_data_file "$package" "$activity" "compiled_trace.pb")"
+
+  # See 'read_ahead.cc' LOG(INFO).
+  local pattern="Description = $remote_path"
+  logcat_wait_for_pattern "$timeout" "$timestamp" "$pattern"
+}
diff --git a/startop/scripts/iorap/compile_handcrafted_file.py b/startop/scripts/iorap/compile_handcrafted_file.py
new file mode 100755
index 0000000..6dbbeaf
--- /dev/null
+++ b/startop/scripts/iorap/compile_handcrafted_file.py
@@ -0,0 +1,297 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import argparse
+import asyncio
+import csv
+import itertools
+import os
+import re
+import struct
+import sys
+import tempfile
+import time
+import zipfile
+from typing import Any, Callable, Dict, Generic, Iterable, List, NamedTuple, TextIO, Tuple, TypeVar, Optional, Union
+
+# Include generated protos.
+dir_name = os.path.dirname(os.path.realpath(__file__))
+sys.path.append(dir_name + "/generated")
+
+from TraceFile_pb2 import *
+
+
+def parse_options(argv: List[str] = None):
+  """Parse command line arguments and return an argparse Namespace object."""
+  parser = argparse.ArgumentParser(description="Compile a TraceFile.proto from a manual text file.")
+  # argparse considers args starting with - and -- optional in --help, even though required=True.
+  # by using a named argument group --help will clearly say that it's required instead of optional.
+  required_named = parser.add_argument_group('required named arguments')
+
+  # optional arguments
+  # use a group here to get the required arguments to appear 'above' the optional arguments in help.
+  optional_named = parser.add_argument_group('optional named arguments')
+  optional_named.add_argument('-opb', '--output-proto-binary', dest='output_proto_binary', action='store', help='Write binary proto output to file.')
+  optional_named.add_argument('-pm', '--pinlist-meta', dest='pinlist_meta', action='store', help='Path to pinlist.meta (default=none) binary file.')
+  optional_named.add_argument('-pmp', '--pinlist-meta-parent', dest='pinlist_meta_parent', action='store', help='Device path that the pinlist.meta applies to (e.g. /data/.../somefile.apk)')
+  optional_named.add_argument('-i', '--input', dest='input', action='store', help='Input text file (default stdin).')
+  optional_named.add_argument('-zp', '--zip_path', dest='zip_path', action='append', help='Directory containing zip files.')
+  optional_named.add_argument('-d', '--debug', dest='debug', action='store_true', help='Add extra debugging output')
+  optional_named.add_argument('-ot', '--output-text', dest='output_text', action='store', help='Output text file (default stdout).')
+
+  return parser.parse_args(argv)
+
+# TODO: refactor this with a common library file with analyze_metrics.py
+def _debug_print(*args, **kwargs):
+  """Print the args to sys.stderr if the --debug/-d flag was passed in."""
+  if _debug:
+    print(*args, **kwargs, file=sys.stderr)
+
+class BadInputError(Exception):
+  pass
+
+InputRecord = NamedTuple('InputRecord', [('filepath', str), ('offset', int), ('length', int), ('remark', str)])
+
+def find_zip_in_paths(original_name, zip_paths):
+  # /foo/bar/bax.zip -> bax.zip
+  file_basename = os.path.split(original_name)[1]
+
+  # the file must be located in one of the --zip-path arguments
+  matched = None
+  for zip_path in zip_paths:
+    for dir_entry in os.listdir(zip_path):
+      if dir_entry == file_basename:
+        matched = os.path.join(zip_path, dir_entry)
+        break
+    if matched:
+      break
+
+  if not matched:
+    raise ValueError("%s could not be found in any of the --zip_path specified." %(file_basename))
+
+  _debug_print("found zip file ", file_basename, " in ", matched)
+
+  if not zipfile.is_zipfile(matched):
+    raise ValueError("%s is not a zip file" %(matched))
+
+  return matched
+
+def handle_zip_entry(input_record, zip_paths):
+
+  res = re.match("([^!]+)[!](.*)", input_record.filepath)
+
+  if not res:
+    return input_record
+
+                         # 'foo!bar'
+  in_filepath = res[1]   # -> 'foo'
+  in_zip_entry = res[2]  # -> 'bar'
+
+  matched = find_zip_in_paths(in_filepath, zip_paths)
+
+  zip = zipfile.ZipFile(matched)
+
+  try:
+    zip_info = zip.getinfo(in_zip_entry)
+  except KeyError:
+    raise ValueError("%s is not an item in the zip file %s" %(in_zip_entry, matched))
+
+  # TODO: do we also need to add header size to this?
+  in_offset = zip_info.header_offset
+
+  # TODO: if a range is specified, use that instead.
+  in_length = zip_info.compress_size
+
+  return InputRecord(in_filepath, in_offset, in_length, 'zip entry (%s)' %(in_zip_entry))
+
+def parse_input_file(input: Iterable[str], zip_paths: List[str]) -> Iterable[InputRecord]:
+  for line in input:
+    line = line.strip()
+
+    _debug_print("Line = ", line)
+    if not line:
+      _debug_print("  skip empty line", line)
+      continue
+    elif line[0] == "#":
+      _debug_print("  skip commented line", line)
+      continue
+
+    res = re.match("([^\s]+)\s+(\d+)\s+(\d+)", line)
+    if not res:
+      raise BadInputError("Expected input of form: <str:filepath> <int:offset> <int:length>")
+
+    in_filepath = res[1]
+    in_offset = int(res[2])
+    in_length = int(res[3])
+
+    yield handle_zip_entry(InputRecord(in_filepath, in_offset, in_length, 'regular file'), zip_paths)
+
+# format:
+#   (<big_endian(i32):file_offset> <big_endian(i32):range_length>)+
+PIN_META_FORMAT = ">ii"
+PIN_META_READ_SIZE = struct.calcsize(PIN_META_FORMAT)
+
+def parse_pin_meta(pin_meta_file, pinlist_meta_parent, zip_paths):
+  if not pin_meta_file:
+    return ()
+
+  global PIN_META_FORMAT
+  global PIN_META_READ_SIZE
+
+  # '/data/app/com.google.android.GoogleCamera-aNQhzSznf4h_bvJ_MRbweQ==/base.apk'
+  #  -> 'com.google.android.GoogleCamera'
+  package_name_match = re.match('/.*/(.*)-.*=/base.apk', pinlist_meta_parent)
+
+  if not package_name_match:
+    raise ValueError("%s did not contain the <packagename>.apk" %(pinlist_meta_parent))
+
+  package_name = package_name_match[1]
+  # "com.google.android.GoogleCamera" -> "GoogleCamera.apk"
+  apk_name = package_name.split(".")[-1] + ".apk"
+
+  path_to_zip_on_host = find_zip_in_paths(apk_name, zip_paths)
+  apk_file_size = os.path.getsize(path_to_zip_on_host)
+  _debug_print("APK path '%s' file size '%d'" %(path_to_zip_on_host, apk_file_size))
+
+  while True:
+    data = pin_meta_file.read(PIN_META_READ_SIZE)
+
+    if not data:
+      break
+
+    (pin_offset, pin_length) = struct.unpack(PIN_META_FORMAT, data)  # (offset, length)
+
+    remark = 'regular file (pinlist.meta)'
+
+    remaining_size = apk_file_size - pin_offset
+    if remaining_size < 0:
+      print("WARNING: Clamp entry (%d, %d), offset too large (max file size = %d)" %(pin_offset, pin_length, apk_file_size))
+
+      pin_length = pin_length + remaining_size
+      pin_offset = pin_offset + remaining_size
+
+      if pin_offset < 0:
+        pin_offset = 0
+
+      remark += '[clamped.offset]'
+
+    pin_last_offset = pin_offset + pin_length
+    remaining_size = apk_file_size - pin_last_offset
+
+    if remaining_size < 0:
+      print("WARNING: Clamp entry (%d, %d), length too large (max file size = %d)" %(pin_offset, pin_length, apk_file_size))
+      pin_length = pin_length + remaining_size
+
+      remark += '[clamped.length]'
+
+    yield InputRecord(pinlist_meta_parent, pin_offset, pin_length, remark)
+
+def write_text_file_output(input_records: Iterable[InputRecord], output_text_file):
+  for rec in input_records:
+    output_text_file.write("%s %d %d #%s\n" %(rec.filepath, rec.offset, rec.length, rec.remark))
+
+def build_trace_file(input_records: Iterable[InputRecord]) -> TraceFile:
+  trace_file = TraceFile()
+  trace_file_index = trace_file.index
+
+  file_id_counter = 0
+  file_id_map = {} # filename -> id
+
+  stats_length_total = 0
+  filename_stats = {} # filename -> total size
+
+  for rec in input_records:
+    filename = rec.filepath
+
+    file_id = file_id_map.get(filename)
+    if not file_id:
+      file_id = file_id_counter
+      file_id_map[filename] = file_id_counter
+      file_id_counter = file_id_counter + 1
+
+      file_index_entry = trace_file_index.entries.add()
+      file_index_entry.id = file_id
+      file_index_entry.file_name = filename
+
+    # already in the file index, add the file entry.
+    file_entry = trace_file.list.entries.add()
+    file_entry.index_id = file_id
+    file_entry.file_length = rec.length
+    stats_length_total += file_entry.file_length
+    file_entry.file_offset = rec.offset
+
+    filename_stats[filename] = filename_stats.get(filename, 0) + file_entry.file_length
+
+  return trace_file
+
+def main():
+  global _debug
+
+  options= parse_options()
+  _debug = options.debug
+  _debug_print("parsed options: ", options)
+
+  if not options.input:
+    input_file = sys.stdin
+    _debug_print("input = stdin")
+  else:
+    input_file = open(options.input)
+    _debug_print("input = (file)", options.input)
+
+  if not options.output_proto_binary:
+    output_proto_file = None
+  else:
+    output_proto_file = open(options.output_proto_binary, 'wb')
+  _debug_print("output_proto_binary = ", output_proto_file)
+
+  pinlist_meta_parent = options.pinlist_meta_parent
+  if options.pinlist_meta:
+    pin_meta_file = open(options.pinlist_meta, 'rb')
+  else:
+    pin_meta_file = None
+
+  if (pinlist_meta_parent == None) != (pin_meta_file == None):
+    print("Options must be used together: --pinlist-meta and --pinlist-meta-path")
+    return 1
+
+  if not options.output_text:
+    output_text_file = sys.stdout
+    _debug_print("output = stdout")
+  else:
+    output_text_file = open(options.output_text, 'w')
+    _debug_print("output = (file)", options.output_text)
+
+  zip_paths = options.zip_path or []
+
+  input_records = list(parse_pin_meta(pin_meta_file, pinlist_meta_parent, zip_paths))
+  input_records = input_records + list(parse_input_file(input_file, zip_paths))
+
+  for p in input_records:
+    _debug_print(p)
+
+  write_text_file_output(input_records, output_text_file)
+  output_text_file.close()
+
+  out_proto = build_trace_file(input_records)
+
+  if output_proto_file:
+    output_proto_file.write(out_proto.SerializeToString())
+    output_proto_file.close()
+
+  return 0
+
+if __name__ == '__main__':
+  sys.exit(main())
diff --git a/startop/scripts/iorap/compiler.py b/startop/scripts/iorap/compiler.py
new file mode 100644
index 0000000..1426d34
--- /dev/null
+++ b/startop/scripts/iorap/compiler.py
@@ -0,0 +1,73 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import importlib
+import os
+import sys
+import tempfile
+from enum import Enum
+from typing import TextIO, List
+
+# local import
+DIR = os.path.abspath(os.path.dirname(__file__))
+sys.path.append(os.path.dirname(DIR))
+import lib.print_utils as print_utils
+
+# Type of compiler.
+class CompilerType(Enum):
+  HOST = 1  # iorap.cmd.compiler on host
+  DEVICE = 2  # adb shell iorap.cmd.compiler
+  RI = 3  # compiler.py
+
+def compile_perfetto_trace_ri(
+    argv: List[str],
+    compiler) -> TextIO:
+  print_utils.debug_print('Compile using RI compiler.')
+  compiler_trace_file = tempfile.NamedTemporaryFile()
+  argv.extend(['-o', compiler_trace_file.name])
+  print_utils.debug_print(argv)
+  compiler.main([''] + argv)
+  return compiler_trace_file
+
+def compile_perfetto_trace_device(inodes_path: str,
+                                  package: str,
+                                  activity: str,
+                                  compiler) -> TextIO:
+  print_utils.debug_print('Compile using on-device compiler.')
+  compiler_trace_file = tempfile.NamedTemporaryFile()
+  compiler.main(inodes_path, package, activity, compiler_trace_file.name)
+  return compiler_trace_file
+
+def compile(compiler_type: CompilerType,
+            inodes_path: str,
+            ri_compiler_argv,
+            package: str,
+            activity: str) -> TextIO:
+  if compiler_type == CompilerType.RI:
+    compiler = importlib.import_module('iorap.compiler_ri')
+    compiler_trace_file = compile_perfetto_trace_ri(ri_compiler_argv,
+                                                    compiler)
+    return compiler_trace_file
+  if compiler_type == CompilerType.DEVICE:
+    compiler = importlib.import_module('iorap.compiler_device')
+    compiler_trace_file = compile_perfetto_trace_device(inodes_path,
+                                                        package,
+                                                        activity,
+                                                        compiler)
+    return compiler_trace_file
+
+  # Should not arrive here.
+  raise ValueError('Unknown compiler type')
diff --git a/startop/scripts/iorap/compiler_device.py b/startop/scripts/iorap/compiler_device.py
new file mode 100644
index 0000000..d941cd9
--- /dev/null
+++ b/startop/scripts/iorap/compiler_device.py
@@ -0,0 +1,68 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import argparse
+import os
+import sys
+from typing import List
+
+DIR = os.path.abspath(os.path.dirname(__file__))
+sys.path.append(os.path.dirname(DIR))  # framework/base/startop/script
+import lib.print_utils as print_utils
+import iorap.lib.iorapd_utils as iorapd_utils
+from app_startup.lib.app_runner import AppRunner
+
+IORAP_COMMON_BASH_SCRIPT = os.path.join(DIR, 'common')
+
+def parse_options(argv: List[str] = None):
+  """Parses command line arguments and returns an argparse Namespace object."""
+  parser = argparse.ArgumentParser(description="Compile perfetto trace file")
+  required_named = parser.add_argument_group('required named arguments')
+
+  required_named.add_argument('-i', dest='inodes', metavar='FILE',
+                              help='Read cached inode data from a file saved '
+                                   'earlier with pagecache.py -d')
+  required_named.add_argument('-p', dest='package',
+                              help='Package of the app to be compiled')
+
+  optional_named = parser.add_argument_group('optional named arguments')
+  optional_named.add_argument('-o', dest='output',
+                              help='The compiled trace is stored into the output file')
+  optional_named.add_argument('-a', dest='activity',
+                              help='Activity of the app to be compiled')
+  optional_named.add_argument('-d', dest='debug', action='store_true'
+                              , help='Activity of the app to be compiled')
+
+  return parser.parse_args(argv)
+
+def main(inodes, package, activity, output, **kwargs) -> int:
+  """Entries of the program."""
+  if not activity:
+    activity = AppRunner.get_activity(package)
+
+  passed = iorapd_utils.compile_perfetto_trace_on_device(package, activity,
+                                                         inodes)
+  if passed and output:
+    iorapd_utils.get_iorapd_compiler_trace(package, activity, output)
+
+  return 0
+
+if __name__ == '__main__':
+  opts = parse_options()
+  if opts.debug:
+    print_utils.DEBUG = opts.debug
+  print_utils.debug_print(opts)
+  sys.exit(main(**(vars(opts))))
diff --git a/startop/scripts/iorap/compiler_ri.py b/startop/scripts/iorap/compiler_ri.py
new file mode 100755
index 0000000..90fc8a8
--- /dev/null
+++ b/startop/scripts/iorap/compiler_ri.py
@@ -0,0 +1,325 @@
+#!/usr/bin/env python3
+
+#
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+#
+# Dependencies:
+#
+# $> sudo apt-get install python3-pip
+# $> pip3 install --user protobuf sqlalchemy sqlite3
+#
+
+import optparse
+import os
+import re
+import sys
+import tempfile
+from pathlib import Path
+from datetime import timedelta
+from typing import Iterable, Optional, List
+
+DIR = os.path.abspath(os.path.dirname(__file__))
+sys.path.append(os.path.dirname(DIR))
+from iorap.generated.TraceFile_pb2 import *
+from iorap.lib.inode2filename import Inode2Filename
+
+parent_dir_name = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
+sys.path.append(parent_dir_name)
+from trace_analyzer.lib.trace2db import Trace2Db, MmFilemapAddToPageCache, \
+    RawFtraceEntry
+import lib.cmd_utils as cmd_utils
+
+_PAGE_SIZE = 4096 # adb shell getconf PAGESIZE ## size of a memory page in bytes.
+ANDROID_BUILD_TOP = Path(parent_dir_name).parents[3]
+TRACECONV_BIN = ANDROID_BUILD_TOP.joinpath(
+    'external/perfetto/tools/traceconv')
+
+class PageRun:
+  """
+  Intermediate representation for a run of one or more pages.
+  """
+  def __init__(self, device_number: int, inode: int, offset: int, length: int):
+    self.device_number = device_number
+    self.inode = inode
+    self.offset = offset
+    self.length = length
+
+  def __str__(self):
+    return "PageRun(device_number=%d, inode=%d, offset=%d, length=%d)" \
+        %(self.device_number, self.inode, self.offset, self.length)
+
+def debug_print(msg):
+  #print(msg)
+  pass
+
+UNDER_LAUNCH = False
+
+def page_cache_entries_to_runs(page_cache_entries: Iterable[MmFilemapAddToPageCache]):
+  global _PAGE_SIZE
+
+  runs = [
+      PageRun(device_number=pg_entry.dev, inode=pg_entry.ino, offset=pg_entry.ofs,
+              length=_PAGE_SIZE)
+        for pg_entry in page_cache_entries
+  ]
+
+  for r in runs:
+    debug_print(r)
+
+  print("Stats: Page runs totaling byte length: %d" %(len(runs) * _PAGE_SIZE))
+
+  return runs
+
+def optimize_page_runs(page_runs):
+  new_entries = []
+  last_entry = None
+  for pg_entry in page_runs:
+    if last_entry:
+      if pg_entry.device_number == last_entry.device_number and pg_entry.inode == last_entry.inode:
+        # we are dealing with a run for the same exact file as a previous run.
+        if pg_entry.offset == last_entry.offset + last_entry.length:
+          # trivially contiguous entries. merge them together.
+          last_entry.length += pg_entry.length
+          continue
+    # Default: Add the run without merging it to a previous run.
+    last_entry = pg_entry
+    new_entries.append(pg_entry)
+  return new_entries
+
+def is_filename_matching_filter(file_name, filters=[]):
+  """
+  Blacklist-style regular expression filters.
+
+  :return: True iff file_name has an RE match in one of the filters.
+  """
+  for filt in filters:
+    res = re.search(filt, file_name)
+    if res:
+      return True
+
+  return False
+
+def build_protobuf(page_runs, inode2filename, filters=[]):
+  trace_file = TraceFile()
+  trace_file_index = trace_file.index
+
+  file_id_counter = 0
+  file_id_map = {} # filename -> id
+
+  stats_length_total = 0
+  filename_stats = {} # filename -> total size
+
+  skipped_inode_map = {}
+  filtered_entry_map = {} # filename -> count
+
+  for pg_entry in page_runs:
+    fn = inode2filename.resolve(pg_entry.device_number, pg_entry.inode)
+    if not fn:
+      skipped_inode_map[pg_entry.inode] = skipped_inode_map.get(pg_entry.inode, 0) + 1
+      continue
+
+    filename = fn
+
+    if filters and not is_filename_matching_filter(filename, filters):
+      filtered_entry_map[filename] = filtered_entry_map.get(filename, 0) + 1
+      continue
+
+    file_id = file_id_map.get(filename)
+    # file_id could 0, which satisfies "if file_id" and causes duplicate
+    # filename for file id 0.
+    if file_id is None:
+      file_id = file_id_counter
+      file_id_map[filename] = file_id_counter
+      file_id_counter = file_id_counter + 1
+
+      file_index_entry = trace_file_index.entries.add()
+      file_index_entry.id = file_id
+      file_index_entry.file_name = filename
+
+    # already in the file index, add the file entry.
+    file_entry = trace_file.list.entries.add()
+    file_entry.index_id = file_id
+    file_entry.file_length = pg_entry.length
+    stats_length_total += file_entry.file_length
+    file_entry.file_offset = pg_entry.offset
+
+    filename_stats[filename] = filename_stats.get(filename, 0) + file_entry.file_length
+
+  for inode, count in skipped_inode_map.items():
+    print("WARNING: Skip inode %s because it's not in inode map (%d entries)" %(inode, count))
+
+  print("Stats: Sum of lengths %d" %(stats_length_total))
+
+  if filters:
+    print("Filter: %d total files removed." %(len(filtered_entry_map)))
+
+    for fn, count in filtered_entry_map.items():
+      print("Filter: File '%s' removed '%d' entries." %(fn, count))
+
+  for filename, file_size in filename_stats.items():
+    print("%s,%s" %(filename, file_size))
+
+  return trace_file
+
+def calc_trace_end_time(trace2db: Trace2Db,
+                        trace_duration: Optional[timedelta]) -> float:
+  """
+  Calculates the end time based on the trace duration.
+  The start time is the first receiving mm file map event.
+  The end time is the start time plus the trace duration.
+  All of them are in milliseconds.
+  """
+  # If the duration is not set, assume all time is acceptable.
+  if trace_duration is None:
+    # float('inf')
+    return RawFtraceEntry.__table__.c.timestamp.type.python_type('inf')
+
+  first_event = trace2db.session.query(MmFilemapAddToPageCache).join(
+      MmFilemapAddToPageCache.raw_ftrace_entry).order_by(
+      RawFtraceEntry.timestamp).first()
+
+  # total_seconds() will return a float number.
+  return first_event.raw_ftrace_entry.timestamp + trace_duration.total_seconds()
+
+def query_add_to_page_cache(trace2db: Trace2Db, trace_duration: Optional[timedelta]):
+  end_time = calc_trace_end_time(trace2db, trace_duration)
+  # SELECT * FROM tbl ORDER BY id;
+  return trace2db.session.query(MmFilemapAddToPageCache).join(
+      MmFilemapAddToPageCache.raw_ftrace_entry).filter(
+      RawFtraceEntry.timestamp <= end_time).order_by(
+      MmFilemapAddToPageCache.id).all()
+
+def transform_perfetto_trace_to_systrace(path_to_perfetto_trace: str,
+                                         path_to_tmp_systrace: str) -> None:
+  """ Transforms the systrace file from perfetto trace. """
+  cmd_utils.run_command_nofail([str(TRACECONV_BIN),
+                                'systrace',
+                                path_to_perfetto_trace,
+                                path_to_tmp_systrace])
+
+
+def run(sql_db_path:str,
+        trace_file:str,
+        trace_duration:Optional[timedelta],
+        output_file:str,
+        inode_table:str,
+        filter:List[str]) -> int:
+  trace2db = Trace2Db(sql_db_path)
+  # Speed optimization: Skip any entries that aren't mm_filemap_add_to_pagecache.
+  trace2db.set_raw_ftrace_entry_filter(\
+      lambda entry: entry['function'] == 'mm_filemap_add_to_page_cache')
+  # TODO: parse multiple trace files here.
+  parse_count = trace2db.parse_file_into_db(trace_file)
+
+  mm_filemap_add_to_page_cache_rows = query_add_to_page_cache(trace2db,
+                                                              trace_duration)
+  print("DONE. Parsed %d entries into sql db." %(len(mm_filemap_add_to_page_cache_rows)))
+
+  page_runs = page_cache_entries_to_runs(mm_filemap_add_to_page_cache_rows)
+  print("DONE. Converted %d entries" %(len(page_runs)))
+
+  # TODO: flags to select optimizations.
+  optimized_page_runs = optimize_page_runs(page_runs)
+  print("DONE. Optimized down to %d entries" %(len(optimized_page_runs)))
+
+  print("Build protobuf...")
+  trace_file = build_protobuf(optimized_page_runs, inode_table, filter)
+
+  print("Write protobuf to file...")
+  output_file = open(output_file, 'wb')
+  output_file.write(trace_file.SerializeToString())
+  output_file.close()
+
+  print("DONE")
+
+  # TODO: Silent running mode [no output except on error] for build runs.
+
+  return 0
+
+def main(argv):
+  parser = optparse.OptionParser(usage="Usage: %prog [options]", description="Compile systrace file into TraceFile.pb")
+  parser.add_option('-i', dest='inode_data_file', metavar='FILE',
+                    help='Read cached inode data from a file saved earlier with pagecache.py -d')
+  parser.add_option('-t', dest='trace_file', metavar='FILE',
+                    help='Path to systrace file (trace.html) that will be parsed')
+  parser.add_option('--perfetto-trace', dest='perfetto_trace_file',
+                    metavar='FILE',
+                    help='Path to perfetto trace that will be parsed')
+
+  parser.add_option('--db', dest='sql_db', metavar='FILE',
+                    help='Path to intermediate sqlite3 database [default: in-memory].')
+
+  parser.add_option('-f', dest='filter', action="append", default=[],
+                    help="Add file filter. All file entries not matching one of the filters are discarded.")
+
+  parser.add_option('-l', dest='launch_lock', action="store_true", default=False,
+                    help="Exclude all events not inside launch_lock")
+
+  parser.add_option('-o', dest='output_file', metavar='FILE',
+                    help='Output protobuf file')
+
+  parser.add_option('--duration', dest='trace_duration', action="store",
+                    type=int, help='The duration of trace in milliseconds.')
+
+  options, categories = parser.parse_args(argv[1:])
+
+  # TODO: OptionParser should have some flags to make these mandatory.
+  if not options.inode_data_file:
+    parser.error("-i is required")
+  if not options.trace_file and not options.perfetto_trace_file:
+    parser.error("one of -t or --perfetto-trace is required")
+  if options.trace_file and options.perfetto_trace_file:
+    parser.error("please enter either -t or --perfetto-trace, not both")
+  if not options.output_file:
+    parser.error("-o is required")
+
+  if options.launch_lock:
+    print("INFO: Launch lock flag (-l) enabled; filtering all events not inside launch_lock.")
+
+  inode_table = Inode2Filename.new_from_filename(options.inode_data_file)
+
+  sql_db_path = ":memory:"
+  if options.sql_db:
+    sql_db_path = options.sql_db
+
+  trace_duration = timedelta(milliseconds=options.trace_duration) if \
+    options.trace_duration is not None else None
+
+  # if the input is systrace
+  if options.trace_file:
+    return run(sql_db_path,
+               options.trace_file,
+               trace_duration,
+               options.output_file,
+               inode_table,
+               options.filter)
+
+  # if the input is perfetto trace
+  # TODO python 3.7 switch to using nullcontext
+  with tempfile.NamedTemporaryFile() as trace_file:
+    transform_perfetto_trace_to_systrace(options.perfetto_trace_file,
+                                         trace_file.name)
+    return run(sql_db_path,
+               trace_file.name,
+               trace_duration,
+               options.output_file,
+               inode_table,
+               options.filter)
+
+if __name__ == '__main__':
+  print(sys.argv)
+  sys.exit(main(sys.argv))
diff --git a/startop/scripts/iorap/compiler_test.py b/startop/scripts/iorap/compiler_test.py
new file mode 100644
index 0000000..b8de701
--- /dev/null
+++ b/startop/scripts/iorap/compiler_test.py
@@ -0,0 +1,78 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""
+Unit tests for the compiler.py script.
+
+Install:
+  $> sudo apt-get install python3-pytest   ##  OR
+  $> pip install -U pytest
+See also https://docs.pytest.org/en/latest/getting-started.html
+
+Usage:
+  $> pytest compiler_test.py
+
+See also https://docs.pytest.org/en/latest/usage.html
+"""
+import os
+
+import compiler_ri as compiler
+
+DIR = os.path.abspath(os.path.dirname(__file__))
+TEXTCACHE = os.path.join(DIR, 'test_fixtures/compiler/common_textcache')
+SYSTRACE = os.path.join(DIR, 'test_fixtures/compiler/common_systrace')
+ARGV = [os.path.join(DIR, 'compiler.py'), '-i', TEXTCACHE, '-t', SYSTRACE]
+PERFETTO_TRACE = os.path.join(DIR,
+                              'test_fixtures/compiler/common_perfetto_trace.pb')
+
+def assert_compile_result(output, expected, *extra_argv):
+  argv = ARGV + ['-o', output] + [args for args in extra_argv]
+
+  compiler.main(argv)
+
+  with open(output, 'rb') as f1, open(expected, 'rb') as f2:
+    assert f1.read() == f2.read()
+
+### Unit tests - testing compiler code directly
+def test_transform_perfetto_trace_to_systrace(tmpdir):
+  expected = os.path.join(DIR,
+                          'test_fixtures/compiler/test_result_systrace')
+  output = tmpdir.mkdir('compiler').join('tmp_systrace')
+
+  compiler.transform_perfetto_trace_to_systrace(PERFETTO_TRACE, str(output))
+
+  with open(output, 'rb') as f1, open(expected, 'rb') as f2:
+    assert f1.read() == f2.read()
+
+### Functional tests - calls 'compiler.py --args...'
+def test_compiler_main(tmpdir):
+  output = tmpdir.mkdir('compiler').join('output')
+
+  # No duration
+  expected = os.path.join(DIR,
+                          'test_fixtures/compiler/test_result_without_duration.TraceFile.pb')
+  assert_compile_result(output, expected)
+
+  # 10ms duration
+  expected = os.path.join(DIR,
+                          'test_fixtures/compiler/test_result_with_duration.TraceFile.pb')
+  assert_compile_result(output, expected, '--duration', '10000')
+
+  # 30ms duration
+  expected = os.path.join(DIR,
+                          'test_fixtures/compiler/test_result_without_duration.TraceFile.pb')
+  assert_compile_result(output, expected, '--duration', '30000')
diff --git a/startop/scripts/iorap/dump_compiled_pb b/startop/scripts/iorap/dump_compiled_pb
new file mode 100755
index 0000000..ad26a7d
--- /dev/null
+++ b/startop/scripts/iorap/dump_compiled_pb
@@ -0,0 +1,38 @@
+#!/bin/bash
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+#
+# Dumps an iorap compiler protobuf from iorap.cmd.compiler into text
+# with gqui.
+#
+
+if [[ "$#" -lt 1 ]]; then
+  echo "Usage: $0 <compiler_trace_file.pb> [...args]" >&2
+  exit 1
+fi
+
+path_to_proto="$DIR/../../../../../system/iorap/src/serialize/TraceFile.proto"
+
+filename="$1"
+shift
+if ! [[ -f $filename ]]; then
+  echo "Error: $filename does not exist." >&2
+  exit 1
+fi
+
+gqui "rawproto:$filename" proto "$path_to_proto":iorap.serialize.proto.TraceFile "$@"
diff --git a/startop/scripts/iorap/dump_trace_pb b/startop/scripts/iorap/dump_trace_pb
new file mode 100755
index 0000000..bcec4a5
--- /dev/null
+++ b/startop/scripts/iorap/dump_trace_pb
@@ -0,0 +1,38 @@
+#!/bin/bash
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+#
+# Dumps a perfetto protobuf collected by iorapd (from perfetto) into text
+# with gqui.
+#
+
+if [[ "$#" -lt 1 ]]; then
+  echo "Usage: $0 <perfetto_trace.pb> [...args]" >&2
+  exit 1
+fi
+
+path_to_perfetto_proto="$DIR/../../../../../external/perfetto/protos/perfetto/trace/perfetto_trace.proto"
+
+filename="$1"
+shift
+if ! [[ -f $filename ]]; then
+  echo "Error: $filename does not exist." >&2
+  exit 1
+fi
+
+gqui "rawproto:$filename" proto "$path_to_perfetto_proto":perfetto.protos.Trace "$@"
diff --git a/startop/scripts/iorap/generated/TraceFile_pb2.py b/startop/scripts/iorap/generated/TraceFile_pb2.py
new file mode 100644
index 0000000..f005bed
--- /dev/null
+++ b/startop/scripts/iorap/generated/TraceFile_pb2.py
@@ -0,0 +1,259 @@
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: TraceFile.proto
+
+import sys
+_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import message as _message
+from google.protobuf import reflection as _reflection
+from google.protobuf import symbol_database as _symbol_database
+from google.protobuf import descriptor_pb2
+# @@protoc_insertion_point(imports)
+
+_sym_db = _symbol_database.Default()
+
+
+
+
+DESCRIPTOR = _descriptor.FileDescriptor(
+  name='TraceFile.proto',
+  package='iorap.serialize.proto',
+  syntax='proto2',
+  serialized_pb=_b('\n\x0fTraceFile.proto\x12\x15iorap.serialize.proto\"u\n\tTraceFile\x12\x34\n\x05index\x18\x01 \x02(\x0b\x32%.iorap.serialize.proto.TraceFileIndex\x12\x32\n\x04list\x18\x02 \x02(\x0b\x32$.iorap.serialize.proto.TraceFileList\"M\n\x0eTraceFileIndex\x12;\n\x07\x65ntries\x18\x01 \x03(\x0b\x32*.iorap.serialize.proto.TraceFileIndexEntry\"4\n\x13TraceFileIndexEntry\x12\n\n\x02id\x18\x01 \x02(\x03\x12\x11\n\tfile_name\x18\x02 \x02(\t\"G\n\rTraceFileList\x12\x36\n\x07\x65ntries\x18\x01 \x03(\x0b\x32%.iorap.serialize.proto.TraceFileEntry\"L\n\x0eTraceFileEntry\x12\x10\n\x08index_id\x18\x01 \x02(\x03\x12\x13\n\x0b\x66ile_offset\x18\x02 \x02(\x03\x12\x13\n\x0b\x66ile_length\x18\x03 \x02(\x03\x42\x1c\n\x18\x63om.google.android.iorapH\x03')
+)
+_sym_db.RegisterFileDescriptor(DESCRIPTOR)
+
+
+
+
+_TRACEFILE = _descriptor.Descriptor(
+  name='TraceFile',
+  full_name='iorap.serialize.proto.TraceFile',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='index', full_name='iorap.serialize.proto.TraceFile.index', index=0,
+      number=1, type=11, cpp_type=10, label=2,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='list', full_name='iorap.serialize.proto.TraceFile.list', index=1,
+      number=2, type=11, cpp_type=10, label=2,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  syntax='proto2',
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=42,
+  serialized_end=159,
+)
+
+
+_TRACEFILEINDEX = _descriptor.Descriptor(
+  name='TraceFileIndex',
+  full_name='iorap.serialize.proto.TraceFileIndex',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='entries', full_name='iorap.serialize.proto.TraceFileIndex.entries', index=0,
+      number=1, type=11, cpp_type=10, label=3,
+      has_default_value=False, default_value=[],
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  syntax='proto2',
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=161,
+  serialized_end=238,
+)
+
+
+_TRACEFILEINDEXENTRY = _descriptor.Descriptor(
+  name='TraceFileIndexEntry',
+  full_name='iorap.serialize.proto.TraceFileIndexEntry',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='id', full_name='iorap.serialize.proto.TraceFileIndexEntry.id', index=0,
+      number=1, type=3, cpp_type=2, label=2,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='file_name', full_name='iorap.serialize.proto.TraceFileIndexEntry.file_name', index=1,
+      number=2, type=9, cpp_type=9, label=2,
+      has_default_value=False, default_value=_b("").decode('utf-8'),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  syntax='proto2',
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=240,
+  serialized_end=292,
+)
+
+
+_TRACEFILELIST = _descriptor.Descriptor(
+  name='TraceFileList',
+  full_name='iorap.serialize.proto.TraceFileList',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='entries', full_name='iorap.serialize.proto.TraceFileList.entries', index=0,
+      number=1, type=11, cpp_type=10, label=3,
+      has_default_value=False, default_value=[],
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  syntax='proto2',
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=294,
+  serialized_end=365,
+)
+
+
+_TRACEFILEENTRY = _descriptor.Descriptor(
+  name='TraceFileEntry',
+  full_name='iorap.serialize.proto.TraceFileEntry',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='index_id', full_name='iorap.serialize.proto.TraceFileEntry.index_id', index=0,
+      number=1, type=3, cpp_type=2, label=2,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='file_offset', full_name='iorap.serialize.proto.TraceFileEntry.file_offset', index=1,
+      number=2, type=3, cpp_type=2, label=2,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='file_length', full_name='iorap.serialize.proto.TraceFileEntry.file_length', index=2,
+      number=3, type=3, cpp_type=2, label=2,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  syntax='proto2',
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=367,
+  serialized_end=443,
+)
+
+_TRACEFILE.fields_by_name['index'].message_type = _TRACEFILEINDEX
+_TRACEFILE.fields_by_name['list'].message_type = _TRACEFILELIST
+_TRACEFILEINDEX.fields_by_name['entries'].message_type = _TRACEFILEINDEXENTRY
+_TRACEFILELIST.fields_by_name['entries'].message_type = _TRACEFILEENTRY
+DESCRIPTOR.message_types_by_name['TraceFile'] = _TRACEFILE
+DESCRIPTOR.message_types_by_name['TraceFileIndex'] = _TRACEFILEINDEX
+DESCRIPTOR.message_types_by_name['TraceFileIndexEntry'] = _TRACEFILEINDEXENTRY
+DESCRIPTOR.message_types_by_name['TraceFileList'] = _TRACEFILELIST
+DESCRIPTOR.message_types_by_name['TraceFileEntry'] = _TRACEFILEENTRY
+
+TraceFile = _reflection.GeneratedProtocolMessageType('TraceFile', (_message.Message,), dict(
+  DESCRIPTOR = _TRACEFILE,
+  __module__ = 'TraceFile_pb2'
+  # @@protoc_insertion_point(class_scope:iorap.serialize.proto.TraceFile)
+  ))
+_sym_db.RegisterMessage(TraceFile)
+
+TraceFileIndex = _reflection.GeneratedProtocolMessageType('TraceFileIndex', (_message.Message,), dict(
+  DESCRIPTOR = _TRACEFILEINDEX,
+  __module__ = 'TraceFile_pb2'
+  # @@protoc_insertion_point(class_scope:iorap.serialize.proto.TraceFileIndex)
+  ))
+_sym_db.RegisterMessage(TraceFileIndex)
+
+TraceFileIndexEntry = _reflection.GeneratedProtocolMessageType('TraceFileIndexEntry', (_message.Message,), dict(
+  DESCRIPTOR = _TRACEFILEINDEXENTRY,
+  __module__ = 'TraceFile_pb2'
+  # @@protoc_insertion_point(class_scope:iorap.serialize.proto.TraceFileIndexEntry)
+  ))
+_sym_db.RegisterMessage(TraceFileIndexEntry)
+
+TraceFileList = _reflection.GeneratedProtocolMessageType('TraceFileList', (_message.Message,), dict(
+  DESCRIPTOR = _TRACEFILELIST,
+  __module__ = 'TraceFile_pb2'
+  # @@protoc_insertion_point(class_scope:iorap.serialize.proto.TraceFileList)
+  ))
+_sym_db.RegisterMessage(TraceFileList)
+
+TraceFileEntry = _reflection.GeneratedProtocolMessageType('TraceFileEntry', (_message.Message,), dict(
+  DESCRIPTOR = _TRACEFILEENTRY,
+  __module__ = 'TraceFile_pb2'
+  # @@protoc_insertion_point(class_scope:iorap.serialize.proto.TraceFileEntry)
+  ))
+_sym_db.RegisterMessage(TraceFileEntry)
+
+
+DESCRIPTOR.has_options = True
+DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), _b('\n\030com.google.android.iorapH\003'))
+# @@protoc_insertion_point(module_scope)
diff --git a/startop/scripts/iorap/generated/codegen_protos b/startop/scripts/iorap/generated/codegen_protos
new file mode 100755
index 0000000..5688711
--- /dev/null
+++ b/startop/scripts/iorap/generated/codegen_protos
@@ -0,0 +1,35 @@
+#!/bin/bash
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+APROTOC="$(which aprotoc)"
+
+IORAP_SERIALIZE_DIR="${DIR}/../../../../../../system/iorap/src/serialize"
+IORAP_PROTOS=($IORAP_SERIALIZE_DIR/*.proto)
+
+if [[ $? -ne 0 ]]; then
+  echo "Fatal: Missing aprotoc. Set APROTOC=... or lunch build/envsetup.sh?" >&2
+  exit 1
+fi
+
+if ! [[ -d $IORAP_SERIALIZE_DIR ]]; then
+  echo "Fatal: Directory '$IORAP_SERIALIZE_DIR' does not exist." >&2
+  exit 1
+fi
+
+# codegen the .py files into the same directory as this script.
+echo "$APROTOC" --proto_path="$IORAP_SERIALIZE_DIR" --python_out="$DIR" "${IORAP_PROTOS[@]}"
+"$APROTOC" --proto_path="$IORAP_SERIALIZE_DIR" --python_out="$DIR" "${IORAP_PROTOS[@]}"
diff --git a/startop/scripts/iorap/lib/inode2filename.py b/startop/scripts/iorap/lib/inode2filename.py
new file mode 100644
index 0000000..2e71393
--- /dev/null
+++ b/startop/scripts/iorap/lib/inode2filename.py
@@ -0,0 +1,94 @@
+#!/usr/bin/env python3
+
+#
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from typing import Any, Callable, Dict, Generic, Iterable, List, NamedTuple, TextIO, Tuple, TypeVar, Optional, Union, TextIO
+
+import re
+
+class Inode2Filename:
+  """
+  Parses a text file of the format
+     "uint(dev_t) uint(ino_t) int(file_size) string(filepath)\\n"*
+
+  Lines not matching this format are ignored.
+  """
+
+  def __init__(self, inode_data_file: TextIO):
+    """
+    Create an Inode2Filename that reads cached inode from a file saved earlier
+    (e.g. with pagecache.py -d or with inode2filename --format=textcache)
+
+    :param inode_data_file: a file object (e.g. created with open or StringIO).
+
+    Lifetime: inode_data_file is only used during the construction of the object.
+    """
+    self._inode_table = Inode2Filename.build_inode_lookup_table(inode_data_file)
+
+  @classmethod
+  def new_from_filename(cls, textcache_filename: str) -> 'Inode2Filename':
+    """
+    Create an Inode2Filename that reads cached inode from a file saved earlier
+    (e.g. with pagecache.py -d or with inode2filename --format=textcache)
+
+    :param textcache_filename: path to textcache
+    """
+    with open(textcache_filename) as inode_data_file:
+      return cls(inode_data_file)
+
+  @staticmethod
+  def build_inode_lookup_table(inode_data_file: TextIO) -> Dict[Tuple[int, int], Tuple[str, str]]:
+    """
+    :return: map { (device_int, inode_int) -> (filename_str, size_str) }
+    """
+    inode2filename = {}
+    for line in inode_data_file:
+      # stat -c "%d %i %s %n
+      # device number, inode number, total size in bytes, file name
+      result = re.match('([0-9]+)d? ([0-9]+) -?([0-9]+) (.*)', line)
+      if result:
+        inode2filename[(int(result.group(1)), int(result.group(2)))] = \
+            (result.group(4), result.group(3))
+
+    return inode2filename
+
+  def resolve(self, dev_t: int, ino_t: int) -> Optional[str]:
+    """
+    Return a filename (str) from a (dev_t, ino_t) inode pair.
+
+    Returns None if the lookup fails.
+    """
+    maybe_result = self._inode_table.get((dev_t, ino_t))
+
+    if not maybe_result:
+      return None
+
+    return maybe_result[0] # filename str
+
+  def __len__(self) -> int:
+    """
+    :return: the number of inode entries parsed from the file.
+    """
+    return len(self._inode_table)
+
+  def __repr__(self) -> str:
+    """
+    :return: string representation for debugging/test failures.
+    """
+    return "Inode2Filename%s" %(repr(self._inode_table))
+
+  # end of class.
diff --git a/startop/scripts/iorap/lib/inode2filename_test.py b/startop/scripts/iorap/lib/inode2filename_test.py
new file mode 100755
index 0000000..1224c61
--- /dev/null
+++ b/startop/scripts/iorap/lib/inode2filename_test.py
@@ -0,0 +1,83 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""
+Unit tests for inode2filename module.
+
+Install:
+  $> sudo apt-get install python3-pytest   ##  OR
+  $> pip install -U pytest
+See also https://docs.pytest.org/en/latest/getting-started.html
+
+Usage:
+  $> ./inode2filename_test.py
+  $> pytest inode2filename_test.py
+  $> python -m pytest inode2filename_test.py
+
+See also https://docs.pytest.org/en/latest/usage.html
+"""
+
+# global imports
+from contextlib import contextmanager
+import io
+import shlex
+import sys
+import typing
+
+# pip imports
+import pytest
+
+# local imports
+from inode2filename import *
+
+def create_inode2filename(*contents):
+  buf = io.StringIO()
+
+  for c in contents:
+    buf.write(c)
+    buf.write("\n")
+
+  buf.seek(0)
+
+  i2f = Inode2Filename(buf)
+
+  buf.close()
+
+  return i2f
+
+def test_inode2filename():
+  a = create_inode2filename("")
+  assert len(a) == 0
+  assert a.resolve(1, 2) == None
+
+  a = create_inode2filename("1 2 3 foo.bar")
+  assert len(a) == 1
+  assert a.resolve(1, 2) == "foo.bar"
+  assert a.resolve(4, 5) == None
+
+  a = create_inode2filename("1 2 3 foo.bar", "4 5 6 bar.baz")
+  assert len(a) == 2
+  assert a.resolve(1, 2) == "foo.bar"
+  assert a.resolve(4, 5) == "bar.baz"
+
+  a = create_inode2filename("1567d 8910 -1 /a/b/c/", "4 5 6 bar.baz")
+  assert len(a) == 2
+  assert a.resolve(1567, 8910) == "/a/b/c/"
+  assert a.resolve(4, 5) == "bar.baz"
+
+if __name__ == '__main__':
+  pytest.main()
diff --git a/startop/scripts/iorap/lib/iorapd_utils.py b/startop/scripts/iorap/lib/iorapd_utils.py
new file mode 100644
index 0000000..f6f21fd
--- /dev/null
+++ b/startop/scripts/iorap/lib/iorapd_utils.py
@@ -0,0 +1,175 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Helper util libraries for iorapd related operations."""
+
+import os
+import sys
+
+# up to two level
+sys.path.append(os.path.join(os.path.abspath(__file__),'../..'))
+import lib.cmd_utils as cmd_utils
+
+IORAPID_LIB_DIR = os.path.abspath(os.path.dirname(__file__))
+IORAPD_DATA_PATH = '/data/misc/iorapd'
+IORAP_COMMON_BASH_SCRIPT = os.path.realpath(os.path.join(IORAPID_LIB_DIR,
+                                                         '../common'))
+
+def _iorapd_path_to_data_file(package: str, activity: str, suffix: str) -> str:
+  """Gets conventional data filename.
+
+   Returns:
+     The path of iorapd data file.
+
+  """
+  # Match logic of 'AppComponentName' in iorap::compiler C++ code.
+  return '{}/{}%2F{}.{}'.format(IORAPD_DATA_PATH, package, activity, suffix)
+
+def compile_perfetto_trace_on_device(package: str, activity: str,
+                                     inodes: str) -> bool:
+  """Compiles the perfetto trace using on-device compiler."""
+  passed, _ = cmd_utils.run_shell_func(IORAP_COMMON_BASH_SCRIPT,
+                                       'iorapd_compiler_for_app_trace',
+                                       [package, activity, inodes])
+  return passed
+
+def get_iorapd_compiler_trace(package: str, activity: str, dest: str) -> str:
+  """Gets compiler trace to dest file."""
+  src = _iorapd_path_to_data_file(package, activity, 'compiled_trace.pb')
+  passed, _ = cmd_utils.run_shell_command('adb pull "{}" "{}"'.format(src, dest))
+  if not passed:
+    return False
+  return True
+
+def iorapd_compiler_install_trace_file(package: str, activity: str,
+                                       input_file: str) -> bool:
+  """Installs a compiled trace file.
+
+  Returns:
+    Whether the trace file is installed successful or not.
+  """
+  # remote path calculations
+  compiled_path = _iorapd_path_to_data_file(package, activity,
+                                            'compiled_trace.pb')
+
+  if not os.path.exists(input_file):
+    print('Error: File {} does not exist'.format(input_file))
+    return False
+
+  passed, _ = cmd_utils.run_adb_shell_command(
+    'mkdir -p "$(dirname "{}")"'.format(compiled_path))
+  if not passed:
+    return False
+
+  passed, _ = cmd_utils.run_shell_command('adb push "{}" "{}"'.format(
+    input_file, compiled_path))
+
+  return passed
+
+def wait_for_iorapd_finish(package: str,
+                           activity: str,
+                           timeout: int,
+                           debug: bool,
+                           logcat_timestamp: str)->bool:
+  """Waits for the finish of iorapd.
+
+  Returns:
+    A bool indicates whether the iorapd is done successfully or not.
+  """
+  # Set verbose for bash script based on debug flag.
+  if debug:
+    os.putenv('verbose', 'y')
+
+  # Validate that readahead completes.
+  # If this fails for some reason, then this will also discard the timing of
+  # the run.
+  passed, _ = cmd_utils.run_shell_func(IORAP_COMMON_BASH_SCRIPT,
+                                       'iorapd_readahead_wait_until_finished',
+                                       [package, activity, logcat_timestamp,
+                                        str(timeout)])
+  return passed
+
+
+def enable_iorapd_readahead() -> bool:
+  """
+  Disable readahead. Subsequent launches of an application will be sped up
+  by iorapd readahead prefetching.
+
+  Returns:
+    A bool indicates whether the enabling is done successfully or not.
+  """
+  passed, _ = cmd_utils.run_shell_func(IORAP_COMMON_BASH_SCRIPT,
+                                       'iorapd_readahead_enable', [])
+  return passed
+
+def disable_iorapd_readahead() -> bool:
+  """
+  Disable readahead. Subsequent launches of an application will be not be sped
+  up by iorapd readahead prefetching.
+
+  Returns:
+    A bool indicates whether the disabling is done successfully or not.
+  """
+  passed, _ = cmd_utils.run_shell_func(IORAP_COMMON_BASH_SCRIPT,
+                                       'iorapd_readahead_disable', [])
+  return passed
+
+def enable_iorapd_perfetto() -> bool:
+  """
+  Enable Perfetto. Subsequent launches of an application will record a perfetto
+  trace protobuf.
+
+  Returns:
+    A bool indicates whether the enabling is done successfully or not.
+  """
+  passed, _ = cmd_utils.run_shell_func(IORAP_COMMON_BASH_SCRIPT,
+                                       'iorapd_perfetto_enable', [])
+  return passed
+
+def disable_iorapd_perfetto() -> bool:
+  """
+  Disable Perfetto. Subsequent launches of applications will no longer record
+  perfetto trace protobufs.
+
+  Returns:
+    A bool indicates whether the disabling is done successfully or not.
+  """
+  passed, _ = cmd_utils.run_shell_func(IORAP_COMMON_BASH_SCRIPT,
+                                       'iorapd_perfetto_disable', [])
+  return passed
+
+def start_iorapd() -> bool:
+  """
+  Starts iorapd.
+
+  Returns:
+    A bool indicates whether the starting is done successfully or not.
+  """
+  passed, _ = cmd_utils.run_shell_func(IORAP_COMMON_BASH_SCRIPT,
+                                       'iorapd_start', [])
+  return passed
+
+def stop_iorapd() -> bool:
+  """
+  Stops iorapd.
+
+  Returns:
+    A bool indicates whether the stopping is done successfully or not.
+  """
+  passed, _ = cmd_utils.run_shell_func(IORAP_COMMON_BASH_SCRIPT,
+                                       'iorapd_stop', [])
+  return passed
+
diff --git a/startop/scripts/iorap/pull_textcache b/startop/scripts/iorap/pull_textcache
new file mode 100755
index 0000000..0554426
--- /dev/null
+++ b/startop/scripts/iorap/pull_textcache
@@ -0,0 +1,24 @@
+#!/bin/bash
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+if [[ $# -lt 1 ]]; then
+  echo "Usage: $0 <output-filename>" >&2
+  exit 1
+fi
+
+# see compiler/main.cc for list of roots
+adb shell iorap.inode2filename --output-format=textcache --output=/data/local/tmp/dumpcache --all --root=/system --root=/apex --root=/vendor --root=/data --root=/product --root=/metadata
+adb pull /data/local/tmp/dumpcache "$1"
diff --git a/startop/scripts/iorap/test_fixtures/compiler/common_perfetto_trace.pb b/startop/scripts/iorap/test_fixtures/compiler/common_perfetto_trace.pb
new file mode 100644
index 0000000..a47ad3d
--- /dev/null
+++ b/startop/scripts/iorap/test_fixtures/compiler/common_perfetto_trace.pb
Binary files differ
diff --git a/startop/scripts/iorap/test_fixtures/compiler/common_systrace b/startop/scripts/iorap/test_fixtures/compiler/common_systrace
new file mode 100644
index 0000000..4573738
--- /dev/null
+++ b/startop/scripts/iorap/test_fixtures/compiler/common_systrace
@@ -0,0 +1,5 @@
+<...>-2965  (-----) [001] .... 10000.746629: mm_filemap_add_to_page_cache: dev 253:6 ino 1 page=00000000679ee1ec pfn=1299913 ofs=192512
+<...>-2965  (-----) [001] .... 10010.746664: mm_filemap_add_to_page_cache: dev 253:6 ino 2 page=0000000006cd2fb7 pfn=1296251 ofs=196608
+<...>-2965  (-----) [001] .... 10020.746677: mm_filemap_add_to_page_cache: dev 253:6 ino 3 page=00000000af82f3d6 pfn=1419330 ofs=200704
+<...>-2965  (-----) [001] .... 10030.746693: mm_filemap_add_to_page_cache: dev 253:6 ino 4 page=000000002840f054 pfn=1304928 ofs=204800
+<...>-2965  (-----) [001] .... 10040.746706: mm_filemap_add_to_page_cache: dev 253:6 ino 5 page=000000004a59da17 pfn=1288069 ofs=208896
diff --git a/startop/scripts/iorap/test_fixtures/compiler/common_textcache b/startop/scripts/iorap/test_fixtures/compiler/common_textcache
new file mode 100644
index 0000000..da03004
--- /dev/null
+++ b/startop/scripts/iorap/test_fixtures/compiler/common_textcache
@@ -0,0 +1,2 @@
+64774 1 -1 /system/test1
+64774 3 -1 /data/test2
diff --git a/startop/scripts/iorap/test_fixtures/compiler/test_result_systrace b/startop/scripts/iorap/test_fixtures/compiler/test_result_systrace
new file mode 100644
index 0000000..59ff753
--- /dev/null
+++ b/startop/scripts/iorap/test_fixtures/compiler/test_result_systrace
@@ -0,0 +1,748 @@
+TRACE:
+# tracer: nop
+#
+# entries-in-buffer/entries-written: 30624/30624   #P:4
+#
+#                                      _-----=> irqs-off
+#                                     / _----=> need-resched
+#                                    | / _---=> hardirq/softirq
+#                                    || / _--=> preempt-depth
+#                                    ||| /     delay
+#           TASK-PID    TGID   CPU#  ||||    TIMESTAMP  FUNCTION
+#              | |        |      |   ||||       |         |
+       <unknown>-27388 (-----) [004] .... 1920260.530929: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1461937 ofs=9535488
+       <unknown>-27388 (-----) [005] .... 1920260.532161: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1344589 ofs=9474048
+       <unknown>-27388 (-----) [005] .... 1920260.532183: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1153671 ofs=9478144
+       <unknown>-27388 (-----) [005] .... 1920260.532184: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1219563 ofs=9482240
+       <unknown>-27388 (-----) [005] .... 1920260.532185: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1083162 ofs=9486336
+       <unknown>-27388 (-----) [005] .... 1920260.532185: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1147318 ofs=9490432
+       <unknown>-27388 (-----) [005] .... 1920260.532186: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1333594 ofs=9494528
+       <unknown>-27388 (-----) [005] .... 1920260.532186: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1375715 ofs=9498624
+       <unknown>-27388 (-----) [005] .... 1920260.532186: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1184831 ofs=9502720
+       <unknown>-27388 (-----) [005] .... 1920260.532187: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1241653 ofs=9506816
+       <unknown>-27388 (-----) [005] .... 1920260.532187: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1134975 ofs=9510912
+       <unknown>-27388 (-----) [005] .... 1920260.532190: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1145772 ofs=9515008
+       <unknown>-27388 (-----) [005] .... 1920260.532190: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1090457 ofs=9519104
+       <unknown>-27388 (-----) [005] .... 1920260.532190: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1137942 ofs=9523200
+       <unknown>-27388 (-----) [005] .... 1920260.532191: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1130123 ofs=9527296
+       <unknown>-27388 (-----) [005] .... 1920260.532191: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1208783 ofs=9531392
+       <unknown>-27388 (-----) [005] .... 1920260.532192: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1294989 ofs=9539584
+       <unknown>-27388 (-----) [005] .... 1920260.532206: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1163979 ofs=9543680
+       <unknown>-27388 (-----) [005] .... 1920260.532206: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1350628 ofs=9547776
+       <unknown>-27388 (-----) [005] .... 1920260.532206: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1386717 ofs=9551872
+       <unknown>-27388 (-----) [005] .... 1920260.532207: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1316148 ofs=9555968
+       <unknown>-27388 (-----) [005] .... 1920260.532208: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1316419 ofs=9560064
+       <unknown>-27388 (-----) [005] .... 1920260.532208: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1149076 ofs=9564160
+       <unknown>-27388 (-----) [005] .... 1920260.532209: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1372772 ofs=9568256
+       <unknown>-27388 (-----) [005] .... 1920260.532209: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1116389 ofs=9572352
+       <unknown>-27388 (-----) [005] .... 1920260.532211: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1325458 ofs=9576448
+       <unknown>-27388 (-----) [005] .... 1920260.532211: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1195423 ofs=9580544
+       <unknown>-27388 (-----) [005] .... 1920260.532211: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1250964 ofs=9584640
+       <unknown>-27388 (-----) [005] .... 1920260.532212: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1196027 ofs=9588736
+       <unknown>-27388 (-----) [005] .... 1920260.532212: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1354059 ofs=9592832
+       <unknown>-27388 (-----) [005] .... 1920260.532213: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1264649 ofs=9596928
+       <unknown>-27388 (-----) [005] .... 1920260.532213: mm_filemap_add_to_page_cache: dev 0:64771 ino df31 page=0000000000000000 pfn=1245285 ofs=9601024
+       <unknown>-27388 (-----) [005] .... 1920260.535119: mm_filemap_add_to_page_cache: dev 0:64768 ino 588 page=0000000000000000 pfn=1411552 ofs=44244992
+       <unknown>-27388 (-----) [005] .... 1920260.535129: mm_filemap_add_to_page_cache: dev 0:3 ino 0 page=0000000000000000 pfn=1483081 ofs=433524736
+       <unknown>-27388 (-----) [004] .... 1920260.536144: mm_filemap_add_to_page_cache: dev 0:3 ino 0 page=0000000000000000 pfn=1276173 ofs=438185984
+       <unknown>-27388 (-----) [004] .... 1920260.536462: mm_filemap_add_to_page_cache: dev 0:64768 ino 588 page=0000000000000000 pfn=1174575 ofs=44249088
+       <unknown>-27388 (-----) [004] .... 1920260.536464: mm_filemap_add_to_page_cache: dev 0:64768 ino 588 page=0000000000000000 pfn=1126294 ofs=44253184
+       <unknown>-27388 (-----) [004] .... 1920260.536464: mm_filemap_add_to_page_cache: dev 0:64768 ino 588 page=0000000000000000 pfn=1248232 ofs=44257280
+       <unknown>-27388 (-----) [004] .... 1920260.537065: mm_filemap_add_to_page_cache: dev 0:64768 ino 588 page=0000000000000000 pfn=1332993 ofs=44240896
+       <unknown>-27388 (-----) [006] .... 1920260.537646: mm_filemap_add_to_page_cache: dev 0:64768 ino 588 page=0000000000000000 pfn=1153343 ofs=44400640
+       <unknown>-27388 (-----) [005] .... 1920260.538777: mm_filemap_add_to_page_cache: dev 0:64768 ino 588 page=0000000000000000 pfn=1358397 ofs=44474368
+       <unknown>-12683 (-----) [006] .... 1920260.560094: mm_filemap_add_to_page_cache: dev 0:64771 ino 11e page=0000000000000000 pfn=1426577 ofs=0
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+       <unknown>-12683 (-----) [006] .... 1920260.561411: mm_filemap_add_to_page_cache: dev 0:64771 ino 11e page=0000000000000000 pfn=1099910 ofs=16384
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+       <unknown>-12683 (-----) [006] .... 1920260.562088: mm_filemap_add_to_page_cache: dev 0:64771 ino 11e page=0000000000000000 pfn=1099809 ofs=36864
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+       <unknown>-12683 (-----) [006] .... 1920260.562516: mm_filemap_add_to_page_cache: dev 0:64771 ino 11e page=0000000000000000 pfn=1099795 ofs=102400
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+       <unknown>-12683 (-----) [006] .... 1920260.563790: mm_filemap_add_to_page_cache: dev 0:64768 ino 4da page=0000000000000000 pfn=1314353 ofs=16384
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+       <unknown>-12683 (-----) [006] .... 1920260.580466: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1289386 ofs=45056
+       <unknown>-12683 (-----) [006] .... 1920260.580466: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1131002 ofs=49152
+       <unknown>-12683 (-----) [006] .... 1920260.580467: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1464335 ofs=53248
+       <unknown>-12683 (-----) [006] .... 1920260.580468: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1135789 ofs=57344
+       <unknown>-12683 (-----) [006] .... 1920260.580469: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1240897 ofs=61440
+       <unknown>-12683 (-----) [006] .... 1920260.580469: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1241770 ofs=65536
+       <unknown>-12683 (-----) [006] .... 1920260.580470: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1421959 ofs=69632
+       <unknown>-12683 (-----) [006] .... 1920260.580470: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1230007 ofs=73728
+       <unknown>-12683 (-----) [006] .... 1920260.580471: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1109271 ofs=77824
+       <unknown>-12683 (-----) [006] .... 1920260.580471: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1159974 ofs=81920
+       <unknown>-12683 (-----) [006] .... 1920260.580471: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1154528 ofs=86016
+       <unknown>-12683 (-----) [006] .... 1920260.580472: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1315790 ofs=90112
+       <unknown>-12683 (-----) [006] .... 1920260.580473: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1185583 ofs=94208
+       <unknown>-12683 (-----) [006] .... 1920260.580473: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1253153 ofs=98304
+       <unknown>-12683 (-----) [006] .... 1920260.580473: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1103982 ofs=102400
+       <unknown>-12683 (-----) [006] .... 1920260.580474: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1284589 ofs=106496
+       <unknown>-12683 (-----) [006] .... 1920260.580474: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1169601 ofs=110592
+       <unknown>-12683 (-----) [006] .... 1920260.580476: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1206248 ofs=114688
+       <unknown>-12683 (-----) [006] .... 1920260.580476: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1261161 ofs=118784
+       <unknown>-12683 (-----) [006] .... 1920260.580477: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1305841 ofs=122880
+       <unknown>-12683 (-----) [006] .... 1920260.580477: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1468293 ofs=126976
+       <unknown>-12683 (-----) [004] .... 1920260.580646: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1318816 ofs=16384
+       <unknown>-12683 (-----) [004] .... 1920260.580649: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1472922 ofs=20480
+       <unknown>-12683 (-----) [004] .... 1920260.580650: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1473229 ofs=24576
+       <unknown>-12683 (-----) [004] .... 1920260.580650: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1524262 ofs=28672
+       <unknown>-12683 (-----) [004] .... 1920260.580656: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1205714 ofs=32768
+       <unknown>-12683 (-----) [004] .... 1920260.580657: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1310560 ofs=36864
+       <unknown>-12683 (-----) [004] .... 1920260.580658: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1295070 ofs=40960
+       <unknown>-12683 (-----) [004] .... 1920260.580659: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1404093 ofs=45056
+       <unknown>-12683 (-----) [004] .... 1920260.580659: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1435814 ofs=49152
+       <unknown>-12683 (-----) [004] .... 1920260.580660: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1435442 ofs=53248
+       <unknown>-12683 (-----) [004] .... 1920260.580660: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1096077 ofs=57344
+       <unknown>-12683 (-----) [004] .... 1920260.580661: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1483793 ofs=61440
+       <unknown>-12683 (-----) [004] .... 1920260.580661: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1231298 ofs=65536
+       <unknown>-12683 (-----) [004] .... 1920260.580661: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1215648 ofs=69632
+       <unknown>-12683 (-----) [004] .... 1920260.580662: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1327326 ofs=73728
+       <unknown>-12683 (-----) [004] .... 1920260.580662: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1108894 ofs=77824
+       <unknown>-12683 (-----) [004] .... 1920260.580663: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1327545 ofs=81920
+       <unknown>-12683 (-----) [004] .... 1920260.580663: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1328804 ofs=86016
+       <unknown>-12683 (-----) [004] .... 1920260.580664: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1300171 ofs=90112
+       <unknown>-12683 (-----) [004] .... 1920260.580664: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1353250 ofs=94208
+       <unknown>-12683 (-----) [004] .... 1920260.580668: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1333681 ofs=98304
+       <unknown>-12683 (-----) [004] .... 1920260.580668: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1144969 ofs=102400
+       <unknown>-12683 (-----) [004] .... 1920260.580669: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1450962 ofs=106496
+       <unknown>-12683 (-----) [004] .... 1920260.580669: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1255701 ofs=110592
+       <unknown>-12683 (-----) [004] .... 1920260.580670: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1294782 ofs=114688
+       <unknown>-12683 (-----) [004] .... 1920260.580670: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1226912 ofs=118784
+       <unknown>-12683 (-----) [004] .... 1920260.580671: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1294579 ofs=122880
+       <unknown>-12683 (-----) [004] .... 1920260.580671: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1246960 ofs=126976
+       <unknown>-12683 (-----) [004] .... 1920260.580671: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1199086 ofs=131072
+       <unknown>-12683 (-----) [004] .... 1920260.580672: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1449590 ofs=135168
+       <unknown>-12683 (-----) [004] .... 1920260.580672: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1276363 ofs=139264
+       <unknown>-12683 (-----) [004] .... 1920260.580675: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1389998 ofs=143360
+       <unknown>-12683 (-----) [004] .... 1920260.580739: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1423031 ofs=1249280
+       <unknown>-12683 (-----) [004] .... 1920260.580741: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1171032 ofs=1253376
+       <unknown>-12683 (-----) [004] .... 1920260.580742: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1320946 ofs=1257472
+       <unknown>-12683 (-----) [004] .... 1920260.580743: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1314696 ofs=1261568
+       <unknown>-12683 (-----) [004] .... 1920260.580743: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1414864 ofs=1265664
+       <unknown>-12683 (-----) [004] .... 1920260.580744: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1334933 ofs=1269760
+       <unknown>-12683 (-----) [004] .... 1920260.580744: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1242845 ofs=1273856
+       <unknown>-12683 (-----) [004] .... 1920260.580747: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1289488 ofs=1277952
+       <unknown>-12683 (-----) [004] .... 1920260.580748: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1335445 ofs=1282048
+       <unknown>-12683 (-----) [004] .... 1920260.580748: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1289663 ofs=1286144
+       <unknown>-12683 (-----) [004] .... 1920260.580749: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1080462 ofs=1290240
+       <unknown>-12683 (-----) [004] .... 1920260.580749: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1286303 ofs=1294336
+       <unknown>-12683 (-----) [004] .... 1920260.580750: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1353531 ofs=1298432
+       <unknown>-12683 (-----) [004] .... 1920260.580750: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1280701 ofs=1302528
+       <unknown>-12683 (-----) [004] .... 1920260.580751: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1107730 ofs=1306624
+       <unknown>-12683 (-----) [004] .... 1920260.580752: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1242729 ofs=1310720
+       <unknown>-12683 (-----) [004] .... 1920260.580753: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1078336 ofs=1314816
+       <unknown>-12683 (-----) [004] .... 1920260.580753: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1372425 ofs=1318912
+       <unknown>-12683 (-----) [004] .... 1920260.580754: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1248813 ofs=1323008
+       <unknown>-12683 (-----) [004] .... 1920260.580754: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1201155 ofs=1327104
+       <unknown>-12683 (-----) [004] .... 1920260.580755: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1250103 ofs=1331200
+       <unknown>-12683 (-----) [004] .... 1920260.580755: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1359710 ofs=1335296
+       <unknown>-12683 (-----) [004] .... 1920260.580756: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1272462 ofs=1339392
+       <unknown>-12683 (-----) [004] .... 1920260.580758: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1097035 ofs=1343488
+       <unknown>-12683 (-----) [004] .... 1920260.580759: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1233124 ofs=1347584
+       <unknown>-12683 (-----) [004] .... 1920260.580759: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1455812 ofs=1351680
+       <unknown>-12683 (-----) [004] .... 1920260.580759: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1355689 ofs=1355776
+       <unknown>-12683 (-----) [004] .... 1920260.580760: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1263593 ofs=1359872
+       <unknown>-12683 (-----) [004] .... 1920260.580760: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1230789 ofs=1363968
+       <unknown>-12683 (-----) [004] .... 1920260.580761: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1143766 ofs=1368064
+       <unknown>-12683 (-----) [004] .... 1920260.580762: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1269666 ofs=1372160
+       <unknown>-12683 (-----) [004] .... 1920260.580762: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1353022 ofs=1376256
+       <unknown>-12683 (-----) [004] .... 1920260.581613: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1355509 ofs=258048
+       <unknown>-12683 (-----) [004] .... 1920260.581615: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1178902 ofs=262144
+       <unknown>-12683 (-----) [004] .... 1920260.581616: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1193649 ofs=266240
+       <unknown>-12683 (-----) [004] .... 1920260.581618: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1225497 ofs=270336
+       <unknown>-12683 (-----) [004] .... 1920260.581618: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1228259 ofs=274432
+       <unknown>-12683 (-----) [004] .... 1920260.581635: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1309674 ofs=278528
+       <unknown>-12683 (-----) [004] .... 1920260.581635: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1239390 ofs=282624
+       <unknown>-12683 (-----) [004] .... 1920260.581636: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1468083 ofs=286720
+       <unknown>-12683 (-----) [004] .... 1920260.581636: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1292751 ofs=290816
+       <unknown>-12683 (-----) [004] .... 1920260.581637: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1318066 ofs=294912
+       <unknown>-12683 (-----) [004] .... 1920260.581637: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1489314 ofs=299008
+       <unknown>-12683 (-----) [004] .... 1920260.581637: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1169867 ofs=303104
+       <unknown>-12683 (-----) [004] .... 1920260.581639: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1314256 ofs=307200
+       <unknown>-12683 (-----) [004] .... 1920260.581639: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1310230 ofs=311296
+       <unknown>-12683 (-----) [004] .... 1920260.581640: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1356180 ofs=315392
+       <unknown>-12683 (-----) [004] .... 1920260.581640: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1419179 ofs=319488
+       <unknown>-12683 (-----) [004] .... 1920260.581641: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1307265 ofs=323584
+       <unknown>-12683 (-----) [004] .... 1920260.581641: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1218590 ofs=327680
+       <unknown>-12683 (-----) [004] .... 1920260.581642: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1447586 ofs=331776
+       <unknown>-12683 (-----) [004] .... 1920260.581642: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1209382 ofs=335872
+       <unknown>-12683 (-----) [004] .... 1920260.581642: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1072148 ofs=339968
+       <unknown>-12683 (-----) [004] .... 1920260.581645: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1227195 ofs=344064
+       <unknown>-12683 (-----) [004] .... 1920260.581646: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1246369 ofs=348160
+       <unknown>-12683 (-----) [004] .... 1920260.581646: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1193845 ofs=352256
+       <unknown>-12683 (-----) [004] .... 1920260.581647: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1137553 ofs=356352
+       <unknown>-12683 (-----) [004] .... 1920260.581647: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1475215 ofs=360448
+       <unknown>-12683 (-----) [004] .... 1920260.581648: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1258935 ofs=364544
+       <unknown>-12683 (-----) [004] .... 1920260.581649: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1448788 ofs=368640
+       <unknown>-12683 (-----) [004] .... 1920260.581649: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1447611 ofs=372736
+       <unknown>-12683 (-----) [004] .... 1920260.581650: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1290842 ofs=376832
+       <unknown>-12683 (-----) [004] .... 1920260.581650: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1447826 ofs=380928
+       <unknown>-12683 (-----) [004] .... 1920260.581650: mm_filemap_add_to_page_cache: dev 0:64771 ino da07 page=0000000000000000 pfn=1181016 ofs=385024
+       <unknown>-12683 (-----) [005] .... 1920260.582230: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1216810 ofs=1662976
+       <unknown>-12683 (-----) [005] .... 1920260.582234: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1175966 ofs=1667072
+       <unknown>-12683 (-----) [005] .... 1920260.582235: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1449798 ofs=1671168
+       <unknown>-12683 (-----) [005] .... 1920260.582236: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1273480 ofs=1675264
+       <unknown>-12683 (-----) [005] .... 1920260.582236: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1152779 ofs=1679360
+       <unknown>-12683 (-----) [005] .... 1920260.582237: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1272810 ofs=1683456
+       <unknown>-12683 (-----) [005] .... 1920260.582237: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1248634 ofs=1687552
+       <unknown>-12683 (-----) [005] .... 1920260.582237: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1203376 ofs=1691648
+       <unknown>-12683 (-----) [005] .... 1920260.582238: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1138880 ofs=1695744
+       <unknown>-12683 (-----) [005] .... 1920260.582238: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1344591 ofs=1699840
+       <unknown>-12683 (-----) [005] .... 1920260.582239: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1416060 ofs=1703936
+       <unknown>-12683 (-----) [005] .... 1920260.582246: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1128676 ofs=1708032
+       <unknown>-12683 (-----) [005] .... 1920260.582247: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1301921 ofs=1712128
+       <unknown>-12683 (-----) [005] .... 1920260.582248: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1384569 ofs=1716224
+       <unknown>-12683 (-----) [005] .... 1920260.582248: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1249106 ofs=1720320
+       <unknown>-12683 (-----) [005] .... 1920260.582249: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1206596 ofs=1724416
+       <unknown>-12683 (-----) [005] .... 1920260.582249: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1429831 ofs=1728512
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+       <unknown>-12697 (-----) [007] .... 1920260.586727: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1468397 ofs=512000
+       <unknown>-12697 (-----) [007] .... 1920260.586727: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1215698 ofs=516096
+       <unknown>-12697 (-----) [007] .... 1920260.586727: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1177341 ofs=520192
+       <unknown>-12697 (-----) [007] .... 1920260.586731: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1189162 ofs=524288
+       <unknown>-12697 (-----) [007] .... 1920260.586732: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1435997 ofs=528384
+       <unknown>-12697 (-----) [007] .... 1920260.586732: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1209896 ofs=532480
+       <unknown>-12697 (-----) [007] .... 1920260.586733: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1255888 ofs=536576
+       <unknown>-12697 (-----) [007] .... 1920260.586734: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1234200 ofs=540672
+       <unknown>-12697 (-----) [007] .... 1920260.586734: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1422854 ofs=544768
+       <unknown>-12697 (-----) [007] .... 1920260.586735: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1435794 ofs=548864
+       <unknown>-12697 (-----) [007] .... 1920260.586735: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1236279 ofs=552960
+       <unknown>-12697 (-----) [007] .... 1920260.586736: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1485732 ofs=557056
+       <unknown>-12683 (-----) [005] .... 1920260.586743: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1417198 ofs=561152
+       <unknown>-12683 (-----) [005] .... 1920260.586746: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1469450 ofs=565248
+       <unknown>-12696 (-----) [004] .... 1920260.587465: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1489023 ofs=1040384
+       <unknown>-12696 (-----) [004] .... 1920260.587469: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1449498 ofs=1044480
+       <unknown>-12696 (-----) [004] .... 1920260.587469: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1447737 ofs=1048576
+       <unknown>-12696 (-----) [004] .... 1920260.587470: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1124530 ofs=1052672
+       <unknown>-12696 (-----) [004] .... 1920260.587476: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1246743 ofs=1056768
+       <unknown>-12696 (-----) [004] .... 1920260.587476: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1441927 ofs=1060864
+       <unknown>-12696 (-----) [004] .... 1920260.587477: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1280581 ofs=1064960
+       <unknown>-12696 (-----) [004] .... 1920260.587477: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1289438 ofs=1069056
+       <unknown>-12696 (-----) [004] .... 1920260.587477: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1464236 ofs=1073152
+       <unknown>-12696 (-----) [004] .... 1920260.587478: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1125808 ofs=1077248
+       <unknown>-12696 (-----) [004] .... 1920260.587478: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1329385 ofs=1081344
+       <unknown>-12696 (-----) [004] .... 1920260.587480: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1314093 ofs=1085440
+       <unknown>-12696 (-----) [004] .... 1920260.587480: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1201837 ofs=1089536
+       <unknown>-12696 (-----) [004] .... 1920260.587481: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1327734 ofs=1093632
+       <unknown>-12696 (-----) [004] .... 1920260.587481: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1406568 ofs=1097728
+       <unknown>-12696 (-----) [004] .... 1920260.587481: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1331873 ofs=1101824
+       <unknown>-12696 (-----) [004] .... 1920260.587482: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1331898 ofs=1105920
+       <unknown>-12696 (-----) [004] .... 1920260.587482: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1331917 ofs=1110016
+       <unknown>-12696 (-----) [004] .... 1920260.587483: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1332091 ofs=1114112
+       <unknown>-12696 (-----) [004] .... 1920260.587483: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1108186 ofs=1118208
+       <unknown>-12696 (-----) [004] .... 1920260.587486: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1182631 ofs=1122304
+       <unknown>-12696 (-----) [004] .... 1920260.587486: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1085941 ofs=1126400
+       <unknown>-12696 (-----) [004] .... 1920260.587487: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1433982 ofs=1130496
+       <unknown>-12696 (-----) [004] .... 1920260.587487: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1387028 ofs=1134592
+       <unknown>-12696 (-----) [004] .... 1920260.587488: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1353117 ofs=1138688
+       <unknown>-12696 (-----) [004] .... 1920260.587489: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1352364 ofs=1142784
+       <unknown>-12696 (-----) [004] .... 1920260.587489: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1144513 ofs=1146880
+       <unknown>-12696 (-----) [004] .... 1920260.587490: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1403984 ofs=1150976
+       <unknown>-12696 (-----) [004] .... 1920260.587490: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1278970 ofs=1155072
+       <unknown>-12696 (-----) [004] .... 1920260.587491: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1326743 ofs=1159168
+       <unknown>-12696 (-----) [004] .... 1920260.587491: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1221809 ofs=1163264
+       <unknown>-12696 (-----) [004] .... 1920260.587492: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1268668 ofs=1167360
+       <unknown>-12695 (-----) [005] .... 1920260.587502: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1074544 ofs=962560
+       <unknown>-12695 (-----) [005] .... 1920260.587506: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1074294 ofs=966656
+       <unknown>-12695 (-----) [005] .... 1920260.587506: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1075097 ofs=970752
+       <unknown>-12695 (-----) [005] .... 1920260.587507: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1162407 ofs=974848
+       <unknown>-12695 (-----) [005] .... 1920260.587507: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1141370 ofs=978944
+       <unknown>-12695 (-----) [005] .... 1920260.587508: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1306487 ofs=983040
+       <unknown>-12695 (-----) [005] .... 1920260.587508: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1306434 ofs=987136
+       <unknown>-12695 (-----) [005] .... 1920260.587514: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1306347 ofs=991232
+       <unknown>-12695 (-----) [005] .... 1920260.587514: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1306247 ofs=995328
+       <unknown>-12695 (-----) [005] .... 1920260.587515: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1306195 ofs=999424
+       <unknown>-12695 (-----) [005] .... 1920260.587516: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1306039 ofs=1003520
+       <unknown>-12695 (-----) [005] .... 1920260.587516: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1305983 ofs=1007616
+       <unknown>-12694 (-----) [006] .... 1920260.587701: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1216391 ofs=1171456
+       <unknown>-12694 (-----) [006] .... 1920260.587705: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1262462 ofs=1175552
+       <unknown>-12694 (-----) [006] .... 1920260.587706: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1358114 ofs=1179648
+       <unknown>-12694 (-----) [006] .... 1920260.587706: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1357898 ofs=1183744
+       <unknown>-12694 (-----) [006] .... 1920260.587707: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1237003 ofs=1187840
+       <unknown>-12694 (-----) [006] .... 1920260.587707: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1126319 ofs=1191936
+       <unknown>-12694 (-----) [006] .... 1920260.587708: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1415489 ofs=1196032
+       <unknown>-12694 (-----) [006] .... 1920260.587708: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1279558 ofs=1200128
+       <unknown>-12694 (-----) [006] .... 1920260.587708: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1434022 ofs=1204224
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+       <unknown>-12694 (-----) [006] .... 1920260.587711: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1406287 ofs=1220608
+       <unknown>-12697 (-----) [007] .... 1920260.588132: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1355143 ofs=1376256
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+       <unknown>-12697 (-----) [007] .... 1920260.588136: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1243190 ofs=1384448
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+       <unknown>-12697 (-----) [007] .... 1920260.588144: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1461789 ofs=1396736
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+       <unknown>-12697 (-----) [007] .... 1920260.588145: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1471996 ofs=1404928
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+       <unknown>-12697 (-----) [007] .... 1920260.588146: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1242579 ofs=1413120
+       <unknown>-12697 (-----) [007] .... 1920260.588148: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1242553 ofs=1417216
+       <unknown>-12697 (-----) [007] .... 1920260.588148: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1457332 ofs=1421312
+       <unknown>-12697 (-----) [007] .... 1920260.588149: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1315431 ofs=1425408
+       <unknown>-12697 (-----) [007] .... 1920260.588149: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1080653 ofs=1429504
+       <unknown>-12697 (-----) [007] .... 1920260.588149: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1324174 ofs=1433600
+       <unknown>-12697 (-----) [007] .... 1920260.588150: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1324142 ofs=1437696
+       <unknown>-12697 (-----) [007] .... 1920260.588150: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1157760 ofs=1441792
+       <unknown>-12697 (-----) [007] .... 1920260.588151: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1075059 ofs=1445888
+       <unknown>-12683 (-----) [006] .... 1920260.589785: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1279192 ofs=1486848
+       <unknown>-12683 (-----) [006] .... 1920260.589790: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1278527 ofs=1490944
+       <unknown>-12683 (-----) [006] .... 1920260.589791: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1091778 ofs=1495040
+       <unknown>-12683 (-----) [006] .... 1920260.589791: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1339447 ofs=1499136
+       <unknown>-12683 (-----) [006] .... 1920260.589792: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1254007 ofs=1503232
+       <unknown>-12683 (-----) [006] .... 1920260.589793: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1115173 ofs=1507328
+       <unknown>-12683 (-----) [006] .... 1920260.589793: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1393985 ofs=1511424
+       <unknown>-12683 (-----) [006] .... 1920260.589794: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1369123 ofs=1515520
+       <unknown>-12683 (-----) [006] .... 1920260.589794: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1314257 ofs=1519616
+       <unknown>-12683 (-----) [006] .... 1920260.589802: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1404487 ofs=1523712
+       <unknown>-12683 (-----) [006] .... 1920260.589803: mm_filemap_add_to_page_cache: dev 0:64771 ino e745 page=0000000000000000 pfn=1354554 ofs=1527808
+       <unknown>-12683 (-----) [006] .... 1920260.594312: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1141445 ofs=9801728
+       <unknown>-12683 (-----) [006] .... 1920260.594322: mm_filemap_add_to_page_cache: dev 0:64771 ino 1 page=0000000000000000 pfn=1323774 ofs=231460864
+       <unknown>-12683 (-----) [006] .... 1920260.594326: mm_filemap_add_to_page_cache: dev 0:64771 ino 2 page=0000000000000000 pfn=1323772 ofs=10993664
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+       <unknown>-12683 (-----) [006] .... 1920260.595214: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1481306 ofs=9809920
+       <unknown>-12683 (-----) [006] .... 1920260.595214: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1481316 ofs=9814016
+       <unknown>-12683 (-----) [006] .... 1920260.595215: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1481340 ofs=9818112
+       <unknown>-12683 (-----) [006] .... 1920260.595216: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1394587 ofs=9822208
+       <unknown>-12683 (-----) [006] .... 1920260.595216: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1103455 ofs=9826304
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+       <unknown>-12683 (-----) [006] .... 1920260.595238: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1103744 ofs=9924608
+       <unknown>-12683 (-----) [006] .... 1920260.595238: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1103868 ofs=9928704
+       <unknown>-12683 (-----) [006] .... 1920260.595789: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1465942 ofs=15855616
+       <unknown>-12683 (-----) [006] .... 1920260.595792: mm_filemap_add_to_page_cache: dev 0:64771 ino 1 page=0000000000000000 pfn=1323712 ofs=261189632
+       <unknown>-12683 (-----) [006] .... 1920260.595998: mm_filemap_add_to_page_cache: dev 0:64771 ino 1 page=0000000000000000 pfn=1323701 ofs=262094848
+       <unknown>-12683 (-----) [006] .... 1920260.596191: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1222287 ofs=15859712
+       <unknown>-12683 (-----) [006] .... 1920260.596192: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1213146 ofs=15863808
+       <unknown>-12683 (-----) [006] .... 1920260.596192: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1310396 ofs=15867904
+       <unknown>-12683 (-----) [006] .... 1920260.596193: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1310177 ofs=15872000
+       <unknown>-12683 (-----) [006] .... 1920260.596194: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1187914 ofs=15876096
+       <unknown>-12683 (-----) [006] .... 1920260.596195: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1322409 ofs=15880192
+       <unknown>-12683 (-----) [006] .... 1920260.596195: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1282484 ofs=15884288
+       <unknown>-12683 (-----) [006] .... 1920260.596200: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1097245 ofs=15888384
+       <unknown>-12683 (-----) [006] .... 1920260.596200: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1416816 ofs=15892480
+       <unknown>-12683 (-----) [006] .... 1920260.596201: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1257125 ofs=15896576
+       <unknown>-12683 (-----) [006] .... 1920260.596201: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1403527 ofs=15900672
+       <unknown>-12683 (-----) [006] .... 1920260.596202: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1218006 ofs=15904768
+       <unknown>-12683 (-----) [006] .... 1920260.596202: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1153893 ofs=15908864
+       <unknown>-12683 (-----) [006] .... 1920260.596202: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1328023 ofs=15912960
+       <unknown>-12683 (-----) [006] .... 1920260.596203: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1465412 ofs=15917056
+       <unknown>-12683 (-----) [006] .... 1920260.596203: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1092448 ofs=15921152
+       <unknown>-12683 (-----) [006] .... 1920260.596204: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1239220 ofs=15925248
+       <unknown>-12683 (-----) [006] .... 1920260.596204: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1276491 ofs=15929344
+       <unknown>-12683 (-----) [006] .... 1920260.596205: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1262240 ofs=15933440
+       <unknown>-12683 (-----) [006] .... 1920260.596206: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1323793 ofs=15937536
+       <unknown>-12683 (-----) [006] .... 1920260.596206: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1074937 ofs=15941632
+       <unknown>-12683 (-----) [006] .... 1920260.596207: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1311157 ofs=15945728
+       <unknown>-12683 (-----) [006] .... 1920260.596207: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1308442 ofs=15949824
+       <unknown>-12683 (-----) [006] .... 1920260.596210: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1467709 ofs=15953920
+       <unknown>-12683 (-----) [006] .... 1920260.596211: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1394299 ofs=15958016
+       <unknown>-12683 (-----) [004] .... 1920260.612586: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1316156 ofs=344064
+       <unknown>-12683 (-----) [004] .... 1920260.612591: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1406323 ofs=348160
+       <unknown>-12683 (-----) [004] .... 1920260.612601: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1216972 ofs=352256
+       <unknown>-12683 (-----) [004] .... 1920260.612605: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1271924 ofs=356352
+       <unknown>-12683 (-----) [004] .... 1920260.612605: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1369225 ofs=360448
+       <unknown>-12683 (-----) [004] .... 1920260.612608: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1318474 ofs=364544
+       <unknown>-12683 (-----) [004] .... 1920260.612609: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1227283 ofs=368640
+       <unknown>-12683 (-----) [004] .... 1920260.612613: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1364376 ofs=372736
+       <unknown>-12683 (-----) [004] .... 1920260.612613: mm_filemap_add_to_page_cache: dev 0:64771 ino 180a page=0000000000000000 pfn=1073400 ofs=376832
diff --git a/startop/scripts/iorap/test_fixtures/compiler/test_result_with_duration.TraceFile.pb b/startop/scripts/iorap/test_fixtures/compiler/test_result_with_duration.TraceFile.pb
new file mode 100644
index 0000000..ab3df45
--- /dev/null
+++ b/startop/scripts/iorap/test_fixtures/compiler/test_result_with_duration.TraceFile.pb
Binary files differ
diff --git a/startop/scripts/iorap/test_fixtures/compiler/test_result_without_duration.TraceFile.pb b/startop/scripts/iorap/test_fixtures/compiler/test_result_without_duration.TraceFile.pb
new file mode 100644
index 0000000..17cb116
--- /dev/null
+++ b/startop/scripts/iorap/test_fixtures/compiler/test_result_without_duration.TraceFile.pb
Binary files differ
diff --git a/startop/scripts/lib/cmd_utils.py b/startop/scripts/lib/cmd_utils.py
new file mode 100644
index 0000000..6071f14
--- /dev/null
+++ b/startop/scripts/lib/cmd_utils.py
@@ -0,0 +1,184 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Helper util libraries for command line operations."""
+
+import asyncio
+import sys
+import time
+from typing import Tuple, Optional, List
+
+import lib.print_utils as print_utils
+
+TIMEOUT = 50
+SIMULATE = False
+
+def run_command_nofail(cmd: List[str], **kwargs) -> None:
+  """Runs cmd list with default timeout.
+
+     Throws exception if the execution fails.
+  """
+  my_kwargs = {"timeout": TIMEOUT, "shell": False, "simulate": False}
+  my_kwargs.update(kwargs)
+  passed, out = execute_arbitrary_command(cmd, **my_kwargs)
+  if not passed:
+    raise RuntimeError(
+      "Failed to execute %s (kwargs=%s), output=%s" % (cmd, kwargs, out))
+
+def run_adb_shell_command(cmd: str) -> Tuple[bool, str]:
+  """Runs command using adb shell.
+
+  Returns:
+    A tuple of running status (True=succeeded, False=failed or timed out) and
+    std output (string contents of stdout with trailing whitespace removed).
+  """
+  return run_shell_command('adb shell "{}"'.format(cmd))
+
+def run_shell_func(script_path: str,
+                   func: str,
+                   args: List[str]) -> Tuple[bool, str]:
+  """Runs shell function with default timeout.
+
+  Returns:
+    A tuple of running status (True=succeeded, False=failed or timed out) and
+    std output (string contents of stdout with trailing whitespace removed) .
+  """
+  if args:
+    cmd = 'bash -c "source {script_path}; {func} {args}"'.format(
+      script_path=script_path,
+      func=func,
+      args=' '.join("'{}'".format(arg) for arg in args))
+  else:
+    cmd = 'bash -c "source {script_path}; {func}"'.format(
+      script_path=script_path,
+      func=func)
+
+  print_utils.debug_print(cmd)
+  return run_shell_command(cmd)
+
+def run_shell_command(cmd: str) -> Tuple[bool, str]:
+  """Runs shell command with default timeout.
+
+  Returns:
+    A tuple of running status (True=succeeded, False=failed or timed out) and
+    std output (string contents of stdout with trailing whitespace removed) .
+  """
+  return execute_arbitrary_command([cmd],
+                                   TIMEOUT,
+                                   shell=True,
+                                   simulate=SIMULATE)
+
+def execute_arbitrary_command(cmd: List[str],
+                              timeout: int,
+                              shell: bool,
+                              simulate: bool) -> Tuple[bool, str]:
+  """Run arbitrary shell command with default timeout.
+
+    Mostly copy from
+    frameworks/base/startop/scripts/app_startup/app_startup_runner.py.
+
+  Args:
+    cmd: list of cmd strings.
+    timeout: the time limit of running cmd.
+    shell: indicate if the cmd is a shell command.
+    simulate: if it's true, do not run the command and assume the running is
+        successful.
+
+  Returns:
+    A tuple of running status (True=succeeded, False=failed or timed out) and
+    std output (string contents of stdout with trailing whitespace removed) .
+  """
+  if simulate:
+    print(cmd)
+    return True, ''
+
+  print_utils.debug_print('[EXECUTE]', cmd)
+  # block until either command finishes or the timeout occurs.
+  loop = asyncio.get_event_loop()
+
+  (return_code, script_output) = loop.run_until_complete(
+    _run_command(*cmd, shell=shell, timeout=timeout))
+
+  script_output = script_output.decode()  # convert bytes to str
+
+  passed = (return_code == 0)
+  print_utils.debug_print('[$?]', return_code)
+  if not passed:
+    print('[FAILED, code:%s]' % (return_code), script_output, file=sys.stderr)
+
+  return passed, script_output.rstrip()
+
+async def _run_command(*args: List[str],
+                       shell: bool = False,
+                       timeout: Optional[int] = None) -> Tuple[int, bytes]:
+  if shell:
+    process = await asyncio.create_subprocess_shell(
+      *args, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.STDOUT)
+  else:
+    process = await asyncio.create_subprocess_exec(
+      *args, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.STDOUT)
+
+  script_output = b''
+
+  print_utils.debug_print('[PID]', process.pid)
+
+  timeout_remaining = timeout
+  time_started = time.time()
+
+  # read line (sequence of bytes ending with b'\n') asynchronously
+  while True:
+    try:
+      line = await asyncio.wait_for(process.stdout.readline(),
+                                    timeout_remaining)
+      print_utils.debug_print('[STDOUT]', line)
+      script_output += line
+
+      if timeout_remaining:
+        time_elapsed = time.time() - time_started
+        timeout_remaining = timeout - time_elapsed
+    except asyncio.TimeoutError:
+      print_utils.debug_print('[TIMEDOUT] Process ', process.pid)
+
+      print_utils.debug_print('[TIMEDOUT] Sending SIGTERM.')
+      process.terminate()
+
+      # 5 second timeout for process to handle SIGTERM nicely.
+      try:
+        (remaining_stdout,
+         remaining_stderr) = await asyncio.wait_for(process.communicate(), 5)
+        script_output += remaining_stdout
+      except asyncio.TimeoutError:
+        print_utils.debug_print('[TIMEDOUT] Sending SIGKILL.')
+        process.kill()
+
+      # 5 second timeout to finish with SIGKILL.
+      try:
+        (remaining_stdout,
+         remaining_stderr) = await asyncio.wait_for(process.communicate(), 5)
+        script_output += remaining_stdout
+      except asyncio.TimeoutError:
+        # give up, this will leave a zombie process.
+        print_utils.debug_print('[TIMEDOUT] SIGKILL failed for process ',
+                                process.pid)
+        time.sleep(100)
+
+      return -1, script_output
+    else:
+      if not line:  # EOF
+        break
+
+  code = await process.wait()  # wait for child process to exit
+  return code, script_output
diff --git a/startop/scripts/lib/logcat_utils.py b/startop/scripts/lib/logcat_utils.py
new file mode 100644
index 0000000..8a3d00b
--- /dev/null
+++ b/startop/scripts/lib/logcat_utils.py
@@ -0,0 +1,104 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Helper util libraries for parsing logcat logs."""
+
+import asyncio
+import re
+from datetime import datetime
+from typing import Optional, Pattern
+
+# local import
+import lib.print_utils as print_utils
+
+def parse_logcat_datetime(timestamp: str) -> Optional[datetime]:
+  """Parses the timestamp of logcat.
+
+  Params:
+    timestamp: for example "2019-07-01 16:13:55.221".
+
+  Returns:
+    a datetime of timestamp with the year now.
+  """
+  try:
+    # Match the format of logcat. For example: "2019-07-01 16:13:55.221",
+    # because it doesn't have year, set current year to it.
+    timestamp = datetime.strptime(timestamp,
+                                  '%Y-%m-%d %H:%M:%S.%f')
+    return timestamp
+  except ValueError as ve:
+    print_utils.debug_print('Invalid line: ' + timestamp)
+    return None
+
+def _is_time_out(timeout: datetime, line: str) -> bool:
+  """Checks if the timestamp of this line exceeds the timeout.
+
+  Returns:
+    true if the timestamp exceeds the timeout.
+  """
+  # Get the timestampe string.
+  cur_timestamp_str = ' '.join(re.split(r'\s+', line)[0:2])
+  timestamp = parse_logcat_datetime(cur_timestamp_str)
+  if not timestamp:
+    return False
+
+  return timestamp > timeout
+
+async def _blocking_wait_for_logcat_pattern(timestamp: datetime,
+                                            pattern: Pattern,
+                                            timeout: datetime) -> Optional[str]:
+  # Show the year in the timestampe.
+  logcat_cmd = 'adb logcat -v UTC -v year -v threadtime -T'.split()
+  logcat_cmd.append(str(timestamp))
+  print_utils.debug_print('[LOGCAT]:' + ' '.join(logcat_cmd))
+
+  # Create subprocess
+  process = await asyncio.create_subprocess_exec(
+      *logcat_cmd,
+      # stdout must a pipe to be accessible as process.stdout
+      stdout=asyncio.subprocess.PIPE)
+
+  while (True):
+    # Read one line of output.
+    data = await process.stdout.readline()
+    line = data.decode('utf-8').rstrip()
+
+    # 2019-07-01 14:54:21.946 27365 27392 I ActivityTaskManager: Displayed
+    # com.android.settings/.Settings: +927ms
+    # TODO: Detect timeouts even when there is no logcat output.
+    if _is_time_out(timeout, line):
+      print_utils.debug_print('DID TIMEOUT BEFORE SEEING ANYTHING ('
+                              'timeout={timeout} seconds << {pattern} '
+                              '>>'.format(timeout=timeout, pattern=pattern))
+      return None
+
+    if pattern.match(line):
+      print_utils.debug_print(
+          'WE DID SEE PATTERN << "{}" >>.'.format(pattern))
+      return line
+
+def blocking_wait_for_logcat_pattern(timestamp: datetime,
+                                     pattern: Pattern,
+                                     timeout: datetime) -> Optional[str]:
+  """Selects the line that matches the pattern and within the timeout.
+
+  Returns:
+    the line that matches the pattern and within the timeout.
+  """
+  loop = asyncio.get_event_loop()
+  result = loop.run_until_complete(
+      _blocking_wait_for_logcat_pattern(timestamp, pattern, timeout))
+  return result
diff --git a/startop/scripts/lib/logcat_utils_test.py b/startop/scripts/lib/logcat_utils_test.py
new file mode 100644
index 0000000..ab82515
--- /dev/null
+++ b/startop/scripts/lib/logcat_utils_test.py
@@ -0,0 +1,88 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+"""Unit tests for the logcat_utils.py script."""
+
+import asyncio
+import datetime
+import re
+
+import logcat_utils
+from mock import MagicMock, patch
+
+def test_parse_logcat_datatime():
+  # Act
+  result = logcat_utils.parse_logcat_datetime('2019-07-01 16:13:55.221')
+
+  # Assert
+  assert result == datetime.datetime(2019, 7, 1, 16, 13, 55, 221000)
+
+class AsyncMock(MagicMock):
+  async def __call__(self, *args, **kwargs):
+    return super(AsyncMock, self).__call__(*args, **kwargs)
+
+def _async_return():
+  f = asyncio.Future()
+  f.set_result(
+      b'2019-07-01 15:51:53.290 27365 27392 I ActivityTaskManager: '
+      b'Displayed com.google.android.music/com.android.music.activitymanagement.'
+      b'TopLevelActivity: +1s7ms')
+  return f
+
+def test_parse_displayed_time_succeed():
+  # Act
+  with patch('asyncio.create_subprocess_exec',
+             new_callable=AsyncMock) as asyncio_mock:
+    asyncio_mock.return_value.stdout.readline = _async_return
+    timestamp = datetime.datetime(datetime.datetime.now().year, 7, 1, 16, 13,
+                                  55, 221000)
+    timeout_dt = timestamp + datetime.timedelta(0, 10)
+    pattern = re.compile('.*ActivityTaskManager: Displayed '
+                         'com.google.android.music/com.android.music.*')
+    result = logcat_utils.blocking_wait_for_logcat_pattern(timestamp,
+                                                           pattern,
+                                                           timeout_dt)
+
+    # Assert
+    assert result == '2019-07-01 15:51:53.290 27365 27392 I ' \
+                     'ActivityTaskManager: ' \
+                     'Displayed com.google.android.music/com.android.music.' \
+                     'activitymanagement.TopLevelActivity: +1s7ms'
+
+def _async_timeout_return():
+  f = asyncio.Future()
+  f.set_result(
+      b'2019-07-01 17:51:53.290 27365 27392 I ActivityTaskManager: '
+      b'Displayed com.google.android.music/com.android.music.activitymanagement.'
+      b'TopLevelActivity: +1s7ms')
+  return f
+
+def test_parse_displayed_time_timeout():
+  # Act
+  with patch('asyncio.create_subprocess_exec',
+             new_callable=AsyncMock) as asyncio_mock:
+    asyncio_mock.return_value.stdout.readline = _async_timeout_return
+    timestamp = datetime.datetime(datetime.datetime.now().year,
+                                  7, 1, 16, 13, 55, 221000)
+    timeout_dt = timestamp + datetime.timedelta(0, 10)
+    pattern = re.compile('.*ActivityTaskManager: Displayed '
+                         'com.google.android.music/com.android.music.*')
+    result = logcat_utils.blocking_wait_for_logcat_pattern(timestamp,
+                                                           pattern,
+                                                           timeout_dt)
+
+    # Assert
+    assert result == None
diff --git a/startop/scripts/lib/print_utils.py b/startop/scripts/lib/print_utils.py
new file mode 100644
index 0000000..8c5999d
--- /dev/null
+++ b/startop/scripts/lib/print_utils.py
@@ -0,0 +1,67 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Helper util libraries for debug printing."""
+
+import sys
+
+DEBUG = False
+
+def debug_print(*args, **kwargs):
+  """Prints the args to sys.stderr if the DEBUG is set."""
+  if DEBUG:
+    print(*args, **kwargs, file=sys.stderr)
+
+def error_print(*args, **kwargs):
+  print('[ERROR]:', *args, file=sys.stderr, **kwargs)
+
+def _expand_gen_repr(args):
+  """Like repr but any generator-like object has its iterator consumed
+  and then called repr on."""
+  new_args_list = []
+  for i in args:
+    # detect iterable objects that do not have their own override of __str__
+    if hasattr(i, '__iter__'):
+      to_str = getattr(i, '__str__')
+      if to_str.__objclass__ == object:
+        # the repr for a generator is just type+address, expand it out instead.
+        new_args_list.append([_expand_gen_repr([j])[0] for j in i])
+        continue
+    # normal case: uses the built-in to-string
+    new_args_list.append(i)
+  return new_args_list
+
+def debug_print_gen(*args, **kwargs):
+  """Like _debug_print but will turn any iterable args into a list."""
+  if not DEBUG:
+    return
+
+  new_args_list = _expand_gen_repr(args)
+  debug_print(*new_args_list, **kwargs)
+
+def debug_print_nd(*args, **kwargs):
+  """Like _debug_print but will turn any NamedTuple-type args into a string."""
+  if not DEBUG:
+    return
+
+  new_args_list = []
+  for i in args:
+    if hasattr(i, '_field_types'):
+      new_args_list.append("%s: %s" % (i.__name__, i._field_types))
+    else:
+      new_args_list.append(i)
+
+  debug_print(*new_args_list, **kwargs)
diff --git a/startop/scripts/trace_analyzer/lib/trace2db.py b/startop/scripts/trace_analyzer/lib/trace2db.py
new file mode 100644
index 0000000..42a33af
--- /dev/null
+++ b/startop/scripts/trace_analyzer/lib/trace2db.py
@@ -0,0 +1,355 @@
+#!/usr/bin/python3
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import re
+import sys
+
+from sqlalchemy import create_engine
+from sqlalchemy import Column, Date, Integer, Float, String, ForeignKey
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import relationship
+
+from sqlalchemy.orm import sessionmaker
+
+import sqlalchemy
+
+from typing import Optional, Tuple
+
+_DEBUG = False        # print sql commands to console
+_FLUSH_LIMIT = 10000  # how many entries are parsed before flushing to DB from memory
+
+Base = declarative_base()
+
+class RawFtraceEntry(Base):
+  __tablename__ = 'raw_ftrace_entries'
+
+  id = Column(Integer, primary_key=True)
+  task_name = Column(String, nullable=True) # <...> -> None.
+  task_pid = Column(String, nullable=False)
+  tgid = Column(Integer, nullable=True)     # ----- -> None.
+  cpu = Column(Integer, nullable=False)
+  timestamp = Column(Float, nullable=False)
+  function = Column(String, nullable=False)
+  function_args = Column(String, nullable=False)
+
+  # 1:1 relation with MmFilemapAddToPageCache.
+  mm_filemap_add_to_page_cache = relationship("MmFilemapAddToPageCache",
+                                              back_populates="raw_ftrace_entry")
+
+  @staticmethod
+  def parse_dict(line):
+    # '           <...>-5521  (-----) [003] ...1 17148.446877: tracing_mark_write: trace_event_clock_sync: parent_ts=17148.447266'
+    m = re.match('\s*(.*)-(\d+)\s+\(([^\)]+)\)\s+\[(\d+)\]\s+([\w.]{4})\s+(\d+[.]\d+):\s+(\w+):\s+(.*)', line)
+    if not m:
+      return None
+
+    groups = m.groups()
+    # groups example:
+    # ('<...>',
+    #  '5521',
+    #  '-----',
+    #  '003',
+    #  '...1',
+    #  '17148.446877',
+    #  'tracing_mark_write',
+    #  'trace_event_clock_sync: parent_ts=17148.447266')
+    task_name = groups[0]
+    if task_name == '<...>':
+      task_name = None
+
+    task_pid = int(groups[1])
+    tgid = groups[2]
+    if tgid == '-----':
+      tgid = None
+
+    cpu = int(groups[3])
+    # irq_flags = groups[4]
+    timestamp = float(groups[5])
+    function = groups[6]
+    function_args = groups[7]
+
+    return {'task_name': task_name, 'task_pid': task_pid, 'tgid': tgid, 'cpu': cpu, 'timestamp': timestamp, 'function': function, 'function_args': function_args}
+
+class SchedSwitch(Base):
+  __tablename__ = 'sched_switches'
+
+  id = Column(Integer, ForeignKey('raw_ftrace_entries.id'), primary_key=True)
+
+  prev_comm = Column(String, nullable=False)
+  prev_pid = Column(Integer, nullable=False)
+  prev_prio = Column(Integer, nullable=False)
+  prev_state = Column(String, nullable=False)
+
+  next_comm = Column(String, nullable=False)
+  next_pid = Column(Integer, nullable=False)
+  next_prio = Column(Integer, nullable=False)
+
+  @staticmethod
+  def parse_dict(function_args, id = None):
+    # 'prev_comm=kworker/u16:5 prev_pid=13971 prev_prio=120 prev_state=S ==> next_comm=swapper/4 next_pid=0 next_prio=120'
+    m = re.match("prev_comm=(.*) prev_pid=(\d+) prev_prio=(\d+) prev_state=(.*) ==> next_comm=(.*) next_pid=(\d+) next_prio=(\d+) ?", function_args)
+    if not m:
+      return None
+
+    groups = m.groups()
+    # ('kworker/u16:5', '13971', '120', 'S', 'swapper/4', '0', '120')
+    d = {}
+    if id is not None:
+      d['id'] = id
+    d['prev_comm'] = groups[0]
+    d['prev_pid'] = int(groups[1])
+    d['prev_prio'] = int(groups[2])
+    d['prev_state'] = groups[3]
+    d['next_comm'] = groups[4]
+    d['next_pid'] = int(groups[5])
+    d['next_prio'] = int(groups[6])
+
+    return d
+
+class SchedBlockedReason(Base):
+  __tablename__ = 'sched_blocked_reasons'
+
+  id = Column(Integer, ForeignKey('raw_ftrace_entries.id'), primary_key=True)
+
+  pid = Column(Integer, nullable=False)
+  iowait = Column(Integer, nullable=False)
+  caller = Column(String, nullable=False)
+
+  @staticmethod
+  def parse_dict(function_args, id = None):
+    # 'pid=2289 iowait=1 caller=wait_on_page_bit_common+0x2a8/0x5f'
+    m = re.match("pid=(\d+) iowait=(\d+) caller=(.*) ?", function_args)
+    if not m:
+      return None
+
+    groups = m.groups()
+    # ('2289', '1', 'wait_on_page_bit_common+0x2a8/0x5f8')
+    d = {}
+    if id is not None:
+      d['id'] = id
+    d['pid'] = int(groups[0])
+    d['iowait'] = int(groups[1])
+    d['caller'] = groups[2]
+
+    return d
+
+class MmFilemapAddToPageCache(Base):
+  __tablename__ = 'mm_filemap_add_to_page_caches'
+
+  id = Column(Integer, ForeignKey('raw_ftrace_entries.id'), primary_key=True)
+
+  dev = Column(Integer, nullable=False)        # decoded from ${major}:${minor} syntax.
+  dev_major = Column(Integer, nullable=False)  # original ${major} value.
+  dev_minor = Column(Integer, nullable=False)  # original ${minor} value.
+
+  ino = Column(Integer, nullable=False)  # decoded from hex to base 10
+  page = Column(Integer, nullable=False) # decoded from hex to base 10
+
+  pfn = Column(Integer, nullable=False)
+  ofs = Column(Integer, nullable=False)
+
+  # 1:1 relation with RawFtraceEntry.
+  raw_ftrace_entry = relationship("RawFtraceEntry", uselist=False)
+
+  @staticmethod
+  def parse_dict(function_args, id = None):
+    # dev 253:6 ino b2c7 page=00000000ec787cd9 pfn=1478539 ofs=4096
+    m = re.match("dev (\d+):(\d+) ino ([0-9a-fA-F]+) page=([0-9a-fA-F]+) pfn=(\d+) ofs=(\d+)", function_args)
+    if not m:
+      return None
+
+    groups = m.groups()
+    # ('253', '6', 'b2c7', '00000000ec787cd9', '1478539', '4096')
+    d = {}
+    if id is not None:
+      d['id'] = id
+
+    device_major = d['dev_major'] = int(groups[0])
+    device_minor = d['dev_minor'] = int(groups[1])
+    d['dev'] = device_major << 8 | device_minor
+    d['ino'] = int(groups[2], 16)
+    d['page'] = int(groups[3], 16)
+    d['pfn'] = int(groups[4])
+    d['ofs'] = int(groups[5])
+
+    return d
+
+class Trace2Db:
+  def __init__(self, db_filename: str):
+    (s, e) = self._init_sqlalchemy(db_filename)
+    self._session = s
+    self._engine = e
+    self._raw_ftrace_entry_filter = lambda x: True
+
+  def set_raw_ftrace_entry_filter(self, flt):
+    """
+    Install a function dict(RawFtraceEntry) -> bool
+
+    If this returns 'false', then we skip adding the RawFtraceEntry to the database.
+    """
+    self._raw_ftrace_entry_filter = flt
+
+  @staticmethod
+  def _init_sqlalchemy(db_filename: str) -> Tuple[object, object]:
+    global _DEBUG
+    engine = create_engine('sqlite:///' + db_filename, echo=_DEBUG)
+
+    # CREATE ... (tables)
+    Base.metadata.create_all(engine)
+
+    Session = sessionmaker(bind=engine)
+    session = Session()
+    return (session, engine)
+
+  def parse_file_into_db(self, filename: str, limit: Optional[int] = None):
+    """
+    Parse the ftrace/systrace at 'filename',
+    inserting the values into the current sqlite database.
+
+    :return: number of RawFtraceEntry inserted.
+    """
+    return parse_file(filename, self._session, self._engine, self._raw_ftrace_entry_filter, limit)
+
+  def parse_file_buf_into_db(self, file_buf, limit: Optional[int] = None):
+    """
+    Parse the ftrace/systrace at 'filename',
+    inserting the values into the current sqlite database.
+
+    :return: number of RawFtraceEntry inserted.
+    """
+    return parse_file_buf(file_buf, self._session, self._engine, self._raw_ftrace_entry_filter, limit)
+
+
+  @property
+  def session(self):
+    return self._session
+
+def insert_pending_entries(engine, kls, lst):
+  if len(lst) > 0:
+    # for some reason, it tries to generate an empty INSERT statement with len=0,
+    # which of course violates the first non-null constraint.
+    try:
+      # Performance-sensitive parsing according to:
+      # https://docs.sqlalchemy.org/en/13/faq/performance.html#i-m-inserting-400-000-rows-with-the-orm-and-it-s-really-slow
+      engine.execute(kls.__table__.insert(), lst)
+      lst.clear()
+    except sqlalchemy.exc.IntegrityError as err:
+      # possibly violating some SQL constraint, print data here.
+      print(err)
+      print(lst)
+      raise
+
+def parse_file(filename: str, *args, **kwargs) -> int:
+  # use explicit encoding to avoid UnicodeDecodeError.
+  with open(filename, encoding="ISO-8859-1") as f:
+    return parse_file_buf(f, *args, **kwargs)
+
+def parse_file_buf(filebuf, session, engine, raw_ftrace_entry_filter, limit=None) -> int:
+  global _FLUSH_LIMIT
+  count = 0
+  # count and id are not equal, because count still increases for invalid lines.
+  id = 0
+
+  pending_entries = []
+  pending_sched_switch = []
+  pending_sched_blocked_reasons = []
+  pending_mm_filemap_add_to_pagecaches = []
+
+  def insert_all_pending_entries():
+    insert_pending_entries(engine, RawFtraceEntry, pending_entries)
+    insert_pending_entries(engine, SchedSwitch, pending_sched_switch)
+    insert_pending_entries(engine, SchedBlockedReason, pending_sched_blocked_reasons)
+    insert_pending_entries(engine, MmFilemapAddToPageCache, pending_mm_filemap_add_to_pagecaches)
+
+  # for trace.html files produced by systrace,
+  # the actual ftrace is in the 'second' trace-data script class.
+  parsing_trace_data = 0
+  parsing_systrace_file = False
+
+  f = filebuf
+  for l in f:
+    if parsing_trace_data == 0 and l == "<!DOCTYPE html>\n":
+      parsing_systrace_file = True
+      continue
+    if parsing_trace_data != 2 and parsing_systrace_file:
+      if l == '  <script class="trace-data" type="application/text">\n':
+        parsing_trace_data = parsing_trace_data + 1
+      continue
+
+    if parsing_systrace_file and parsing_trace_data != 2:
+      continue
+    elif parsing_systrace_file and parsing_trace_data == 2 and l == "  </script>\n":
+      # the rest of this file is just random html
+      break
+
+    # now parsing the ftrace data.
+    if len(l) > 1 and l[0] == '#':
+      continue
+
+    count = count + 1
+
+    if limit and count >= limit:
+      break
+
+    raw_ftrace_entry = RawFtraceEntry.parse_dict(l)
+    if not raw_ftrace_entry:
+      print("WARNING: Failed to parse raw ftrace entry: " + l)
+      continue
+
+    if not raw_ftrace_entry_filter(raw_ftrace_entry):
+      # Skip processing raw ftrace entries that don't match a filter.
+      # This is an optimization for when Trace2Db is used programatically
+      # to avoid having an overly large database.
+      continue
+
+    pending_entries.append(raw_ftrace_entry)
+    id = id + 1
+
+    if raw_ftrace_entry['function'] == 'sched_switch':
+      sched_switch = SchedSwitch.parse_dict(raw_ftrace_entry['function_args'], id)
+
+      if not sched_switch:
+        print("WARNING: Failed to parse sched_switch: " + l)
+      else:
+        pending_sched_switch.append(sched_switch)
+
+    elif raw_ftrace_entry['function'] == 'sched_blocked_reason':
+      sbr = SchedBlockedReason.parse_dict(raw_ftrace_entry['function_args'], id)
+
+      if not sbr:
+        print("WARNING: Failed to parse sched_blocked_reason: " + l)
+      else:
+        pending_sched_blocked_reasons.append(sbr)
+
+    elif raw_ftrace_entry['function'] == 'mm_filemap_add_to_page_cache':
+      d = MmFilemapAddToPageCache.parse_dict(raw_ftrace_entry['function_args'],
+                                             id)
+      if not d:
+        print("WARNING: Failed to parse mm_filemap_add_to_page_cache: " + l)
+      else:
+        pending_mm_filemap_add_to_pagecaches.append(d)
+
+    # Objects are cached in python memory, not yet sent to SQL database.
+
+    # Send INSERT/UPDATE/etc statements to the underlying SQL database.
+    if count % _FLUSH_LIMIT == 0:
+      insert_all_pending_entries()
+
+  insert_all_pending_entries()
+
+  # Ensure underlying database commits changes from memory to disk.
+  session.commit()
+
+  return count
diff --git a/startop/scripts/trace_analyzer/lib/trace2db_test.py b/startop/scripts/trace_analyzer/lib/trace2db_test.py
new file mode 100755
index 0000000..3b326f0
--- /dev/null
+++ b/startop/scripts/trace_analyzer/lib/trace2db_test.py
@@ -0,0 +1,222 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""
+Unit tests for inode2filename module.
+
+Install:
+  $> sudo apt-get install python3-pytest   ##  OR
+  $> pip install -U pytest
+See also https://docs.pytest.org/en/latest/getting-started.html
+
+Usage:
+  $> ./inode2filename_test.py
+  $> pytest inode2filename_test.py
+  $> python -m pytest inode2filename_test.py
+
+See also https://docs.pytest.org/en/latest/usage.html
+"""
+
+# global imports
+import io
+from copy import deepcopy
+
+# pip imports
+# local imports
+from trace2db import *
+
+# This pretty-prints the raw dictionary of the sqlalchemy object if it fails.
+class EqualsSqlAlchemyObject:
+  # For convenience to write shorter tests, we also add 'ignore_fields' which allow us to specify
+  # which fields to ignore when doing the comparison.
+  def __init__(self_, self, ignore_fields=[]):
+    self_.self = self
+    self_.ignore_fields = ignore_fields
+
+  # Do field-by-field comparison.
+  # It seems that SQLAlchemy does not implement __eq__ itself so we have to do it ourselves.
+  def __eq__(self_, other):
+    if isinstance(other, EqualsSqlAlchemyObject):
+      other = other.self
+
+    self = self_.self
+
+    classes_match = isinstance(other, self.__class__)
+    a, b = deepcopy(self.__dict__), deepcopy(other.__dict__)
+
+    #compare based on equality our attributes, ignoring SQLAlchemy internal stuff
+
+    a.pop('_sa_instance_state', None)
+    b.pop('_sa_instance_state', None)
+
+    for f in self_.ignore_fields:
+      a.pop(f, None)
+      b.pop(f, None)
+
+    attrs_match = (a == b)
+    return classes_match and attrs_match
+
+  def __repr__(self):
+    return repr(self.self.__dict__)
+
+
+def assert_eq_ignore_id(left, right):
+  # This pretty-prints the raw dictionary of the sqlalchemy object if it fails.
+  # It does field-by-field comparison, but ignores the 'id' field.
+  assert EqualsSqlAlchemyObject(left, ignore_fields=['id']) == EqualsSqlAlchemyObject(right)
+
+def parse_trace_file_to_db(*contents):
+  """
+  Make temporary in-memory sqlite3 database by parsing the string contents as a trace.
+
+  :return: Trace2Db instance
+  """
+  buf = io.StringIO()
+
+  for c in contents:
+    buf.write(c)
+    buf.write("\n")
+
+  buf.seek(0)
+
+  t2d = Trace2Db(":memory:")
+  t2d.parse_file_buf_into_db(buf)
+
+  buf.close()
+
+  return t2d
+
+def test_ftrace_mm_filemap_add_to_pagecache():
+  test_contents = """
+MediaStoreImpor-27212 (27176) [000] .... 16136.595194: mm_filemap_add_to_page_cache: dev 253:6 ino 7580 page=0000000060e990c7 pfn=677646 ofs=159744
+MediaStoreImpor-27212 (27176) [000] .... 16136.595920: mm_filemap_add_to_page_cache: dev 253:6 ino 7580 page=0000000048e2e156 pfn=677645 ofs=126976
+MediaStoreImpor-27212 (27176) [000] .... 16136.597793: mm_filemap_add_to_page_cache: dev 253:6 ino 7580 page=0000000051eabfb2 pfn=677644 ofs=122880
+MediaStoreImpor-27212 (27176) [000] .... 16136.597815: mm_filemap_add_to_page_cache: dev 253:6 ino 7580 page=00000000ce7cd606 pfn=677643 ofs=131072
+MediaStoreImpor-27212 (27176) [000] .... 16136.603732: mm_filemap_add_to_page_cache: dev 253:6 ino 1 page=000000008ffd3030 pfn=730119 ofs=186482688
+MediaStoreImpor-27212 (27176) [000] .... 16136.604126: mm_filemap_add_to_page_cache: dev 253:6 ino b1d8 page=0000000098d4d2e2 pfn=829676 ofs=0
+          <...>-27197 (-----) [002] .... 16136.613471: mm_filemap_add_to_page_cache: dev 253:6 ino 7580 page=00000000aca88a97 pfn=743346 ofs=241664
+          <...>-27197 (-----) [002] .... 16136.615979: mm_filemap_add_to_page_cache: dev 253:6 ino 7580 page=00000000351f2bc1 pfn=777799 ofs=106496
+          <...>-27224 (-----) [006] .... 16137.400090: mm_filemap_add_to_page_cache: dev 253:6 ino 712d page=000000006ff7ffdb pfn=754861 ofs=0
+          <...>-1396  (-----) [000] .... 16137.451660: mm_filemap_add_to_page_cache: dev 253:6 ino 1 page=00000000ba0cbb34 pfn=769173 ofs=187191296
+          <...>-1396  (-----) [000] .... 16137.453020: mm_filemap_add_to_page_cache: dev 253:6 ino b285 page=00000000f6ef038e pfn=820291 ofs=0
+          <...>-1396  (-----) [000] .... 16137.453067: mm_filemap_add_to_page_cache: dev 253:6 ino b285 page=0000000083ebc446 pfn=956463 ofs=4096
+          <...>-1396  (-----) [000] .... 16137.453101: mm_filemap_add_to_page_cache: dev 253:6 ino b285 page=000000009dc2cd25 pfn=822813 ofs=8192
+          <...>-1396  (-----) [000] .... 16137.453113: mm_filemap_add_to_page_cache: dev 253:6 ino b285 page=00000000a11167fb pfn=928650 ofs=12288
+          <...>-1396  (-----) [000] .... 16137.453126: mm_filemap_add_to_page_cache: dev 253:6 ino b285 page=00000000c1c3311b pfn=621110 ofs=16384
+          <...>-1396  (-----) [000] .... 16137.453139: mm_filemap_add_to_page_cache: dev 253:6 ino b285 page=000000009aa78342 pfn=689370 ofs=20480
+          <...>-1396  (-----) [000] .... 16137.453151: mm_filemap_add_to_page_cache: dev 253:6 ino b285 page=0000000082cddcd6 pfn=755584 ofs=24576
+          <...>-1396  (-----) [000] .... 16137.453162: mm_filemap_add_to_page_cache: dev 253:6 ino b285 page=00000000b0249bc7 pfn=691431 ofs=28672
+          <...>-1396  (-----) [000] .... 16137.453183: mm_filemap_add_to_page_cache: dev 253:6 ino b285 page=000000006a776ff0 pfn=795084 ofs=32768
+          <...>-1396  (-----) [000] .... 16137.453203: mm_filemap_add_to_page_cache: dev 253:6 ino b285 page=000000001a4918a7 pfn=806998 ofs=36864
+          <...>-2578  (-----) [002] .... 16137.561871: mm_filemap_add_to_page_cache: dev 253:6 ino 1 page=00000000d65af9d2 pfn=719246 ofs=187015168
+          <...>-2578  (-----) [002] .... 16137.562846: mm_filemap_add_to_page_cache: dev 253:6 ino b25a page=000000002f6ba74f pfn=864982 ofs=0
+          <...>-2578  (-----) [000] .... 16138.104500: mm_filemap_add_to_page_cache: dev 253:6 ino 1 page=00000000f888d0f6 pfn=805812 ofs=192794624
+          <...>-2578  (-----) [000] .... 16138.105836: mm_filemap_add_to_page_cache: dev 253:6 ino b7dd page=000000003749523b pfn=977196 ofs=0
+          <...>-27215 (-----) [001] .... 16138.256881: mm_filemap_add_to_page_cache: dev 253:6 ino 758f page=000000001b375de1 pfn=755928 ofs=0
+          <...>-27215 (-----) [001] .... 16138.257526: mm_filemap_add_to_page_cache: dev 253:6 ino 7591 page=000000004e039481 pfn=841534 ofs=0
+ NonUserFacing6-5246  ( 1322) [005] .... 16138.356491: mm_filemap_add_to_page_cache: dev 253:6 ino 1 page=00000000d65af9d2 pfn=719246 ofs=161890304
+ NonUserFacing6-5246  ( 1322) [005] .... 16138.357538: mm_filemap_add_to_page_cache: dev 253:6 ino 9a64 page=000000002f6ba74f pfn=864982 ofs=0
+ NonUserFacing6-5246  ( 1322) [005] .... 16138.357581: mm_filemap_add_to_page_cache: dev 253:6 ino 9a64 page=000000006e0f8322 pfn=797894 ofs=4096
+          <...>-27197 (-----) [005] .... 16140.143224: mm_filemap_add_to_page_cache: dev 253:6 ino 7580 page=00000000a42527c6 pfn=1076669 ofs=32768
+  """
+
+  t2d = parse_trace_file_to_db(test_contents)
+  session = t2d.session
+
+  first_row = session.query(MmFilemapAddToPageCache).order_by(MmFilemapAddToPageCache.id).first()
+
+  #dev 253:6 ino 7580 page=0000000060e990c7 pfn=677646 ofs=159744
+  assert_eq_ignore_id(MmFilemapAddToPageCache(dev=64774, dev_major=253, dev_minor=6,
+      ino=0x7580, page=0x0000000060e990c7, pfn=677646, ofs=159744), first_row)
+
+  second_to_last_row = session.query(MmFilemapAddToPageCache).filter(MmFilemapAddToPageCache.page.in_([0x000000006e0f8322])).first()
+
+  # dev 253:6 ino 9a64 page=000000006e0f8322 pfn=797894 ofs=4096
+  assert_eq_ignore_id(MmFilemapAddToPageCache(dev=64774, dev_major=253, dev_minor=6,
+      ino=0x9a64, page=0x000000006e0f8322, pfn=797894, ofs=4096), second_to_last_row)
+
+def test_systrace_mm_filemap_add_to_pagecache():
+  test_contents = """
+<!DOCTYPE html>
+<html>
+<head i18n-values="dir:textdirection;">
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<meta charset="utf-8"/>
+<title>Android System Trace</title>
+  <script class="trace-data" type="application/text">
+PROCESS DUMP
+USER           PID  PPID     VSZ    RSS WCHAN  PC S NAME                        COMM
+root             1     0   62148   5976 0       0 S init                        [init]
+root             2     0       0      0 0       0 S [kthreadd]                  [kthreadd]
+  </script>
+
+  <script class="trace-data" type="application/text">
+MediaStoreImpor-27212 (27176) [000] .... 16136.595194: mm_filemap_add_to_page_cache: dev 253:6 ino 7580 page=0000000060e990c7 pfn=677646 ofs=159744
+NonUserFacing6-5246  ( 1322) [005] .... 16138.357581: mm_filemap_add_to_page_cache: dev 253:6 ino 9a64 page=000000006e0f8322 pfn=797894 ofs=4096
+  </script>
+
+  <script class="trace-data" type="application/text">
+{"traceEvents": [{"category": "process_argv", "name": "process_argv", "args": {"argv": ["/mnt/ssd3/workspace/master/external/chromium-trace/systrace.py", "-t", "5", "pagecache"]}, "pid": 160383, "ts": 1037300940509.7991, "tid": 139628672526080, "ph": "M"}, {"category": "python", "name": "clock_sync", "args": {"issue_ts": 1037307346185.212, "sync_id": "9a7e4fe3-89ad-441f-8226-8fe533fe973e"}, "pid": 160383, "ts": 1037307351643.906, "tid": 139628726089536, "ph": "c"}], "metadata": {"clock-domain": "SYSTRACE"}}
+  </script>
+<!-- END TRACE -->
+  """
+
+  t2d = parse_trace_file_to_db(test_contents)
+  session = t2d.session
+
+  first_row = session.query(MmFilemapAddToPageCache).order_by(MmFilemapAddToPageCache.id).first()
+
+  #dev 253:6 ino 7580 page=0000000060e990c7 pfn=677646 ofs=159744
+  assert_eq_ignore_id(MmFilemapAddToPageCache(dev=64774, dev_major=253, dev_minor=6,
+      ino=0x7580, page=0x0000000060e990c7, pfn=677646, ofs=159744), first_row)
+
+  second_to_last_row = session.query(MmFilemapAddToPageCache).filter(MmFilemapAddToPageCache.page.in_([0x000000006e0f8322])).first()
+
+  # dev 253:6 ino 9a64 page=000000006e0f8322 pfn=797894 ofs=4096
+  assert_eq_ignore_id(MmFilemapAddToPageCache(dev=64774, dev_major=253, dev_minor=6,
+      ino=0x9a64, page=0x000000006e0f8322, pfn=797894, ofs=4096), second_to_last_row)
+
+def test_timestamp_filter():
+  test_contents = """
+    MediaStoreImpor-27212 (27176) [000] .... 16136.595194: mm_filemap_add_to_page_cache: dev 253:6 ino 7580 page=0000000060e990c7 pfn=677646 ofs=159744
+    NonUserFacing6-5246  ( 1322) [005] .... 16139.357581: mm_filemap_add_to_page_cache: dev 253:6 ino 9a64 page=000000006e0f8322 pfn=797894 ofs=4096
+    MediaStoreImpor-27212 (27176) [000] .... 16136.604126: mm_filemap_add_to_page_cache: dev 253:6 ino b1d8 page=0000000098d4d2e2 pfn=829676 ofs=0
+  """
+
+  t2d = parse_trace_file_to_db(test_contents)
+  session = t2d.session
+
+  end_time = 16137.0
+
+  results = session.query(MmFilemapAddToPageCache).join(
+      MmFilemapAddToPageCache.raw_ftrace_entry).filter(
+      RawFtraceEntry.timestamp <= end_time).order_by(
+      MmFilemapAddToPageCache.id).all()
+
+  assert len(results) == 2
+  assert_eq_ignore_id(
+      MmFilemapAddToPageCache(dev=64774, dev_major=253, dev_minor=6,
+                              ino=0x7580, page=0x0000000060e990c7, pfn=677646,
+                              ofs=159744), results[0])
+  assert_eq_ignore_id(
+      MmFilemapAddToPageCache(dev=64774, dev_major=253, dev_minor=6,
+                              ino=0xb1d8, page=0x0000000098d4d2e2, pfn=829676,
+                              ofs=0), results[1])
+
+
+if __name__ == '__main__':
+  pytest.main()
diff --git a/startop/scripts/trace_analyzer/queries_all.sql b/startop/scripts/trace_analyzer/queries_all.sql
new file mode 100644
index 0000000..41d1c08
--- /dev/null
+++ b/startop/scripts/trace_analyzer/queries_all.sql
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+-- filter for atrace writes
+CREATE VIEW IF NOT EXISTS tracing_mark_writes AS
+    SELECT *
+      FROM raw_ftrace_entries
+     WHERE function = 'tracing_mark_write';
+
+-- split the tracing_mark_write function args by ||s
+DROP TABLE IF exists tracing_mark_write_split_array;
+
+CREATE TABLE tracing_mark_write_split_array (
+    predictorset_id INT REFERENCES raw_ftrace_entries (id),
+    predictor_name,
+    rest,
+    gen,
+    
+    UNIQUE(predictorset_id, gen) -- drops redundant inserts into table
+);
+
+CREATE INDEX "tracing_mark_write_split_array_id" ON tracing_mark_write_split_array (
+    predictorset_id COLLATE BINARY COLLATE BINARY
+);
+
+INSERT INTO tracing_mark_write_split_array
+  WITH 
+    split(predictorset_id, predictor_name, rest, gen) AS (
+      -- split by |
+      SELECT id, '', function_args || '|', 0 FROM tracing_mark_writes WHERE id
+       UNION ALL
+      SELECT predictorset_id, 
+             substr(rest, 0, instr(rest, '|')),
+             substr(rest, instr(rest, '|')+1),
+             gen + 1
+        FROM split
+       WHERE rest <> ''),
+     split_results AS (
+       SELECT * FROM split WHERE predictor_name <> ''
+     )
+  SELECT * from split_results
+;
+
+
diff --git a/startop/scripts/trace_analyzer/queries_app_launch_spans_with_name.sql b/startop/scripts/trace_analyzer/queries_app_launch_spans_with_name.sql
new file mode 100644
index 0000000..c28475e
--- /dev/null
+++ b/startop/scripts/trace_analyzer/queries_app_launch_spans_with_name.sql
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+-- use the 'launching: $process_name' async slice to figure out launch duration.
+DROP VIEW IF EXISTS launch_durations_named;
+
+CREATE VIEW launch_durations_named AS
+WITH
+    launch_traces_raw AS (
+        SELECT *
+        FROM tracing_mark_write_split AS tmw,
+             raw_ftrace_entries AS rfe
+        WHERE atrace_message LIKE 'launching: %' AND rfe.id = tmw.raw_ftrace_entry_id
+    ),
+    launch_traces_joined AS (
+        SELECT started.timestamp AS started_timestamp,
+               finished.timestamp AS finished_timestamp,
+               started.id AS started_id,
+               finished.id AS finished_id,
+               SUBSTR(started.atrace_message, 12) AS proc_name   -- crop out "launching: " from the string.
+        FROM launch_traces_raw AS started,
+             launch_traces_raw AS finished
+        -- async slices ('S' -> 'F') have matching counters given the same PID.
+        WHERE started.atrace_type == 'S'
+              AND finished.atrace_type == 'F'
+              AND started.atrace_count == finished.atrace_count
+              AND started.atrace_pid == finished.atrace_pid
+    )
+SELECT * from launch_traces_joined;
+
+SELECT * FROM launch_durations_named;
diff --git a/startop/scripts/trace_analyzer/queries_block_launch.sql b/startop/scripts/trace_analyzer/queries_block_launch.sql
new file mode 100644
index 0000000..34e5f03
--- /dev/null
+++ b/startop/scripts/trace_analyzer/queries_block_launch.sql
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+DROP VIEW IF EXISTS blocked_iowait_for_app_launches;
+
+CREATE VIEW blocked_iowait_for_app_launches AS
+WITH
+    block_launch_join AS (
+        SELECT *
+        FROM blocking_durations AS bd,
+             launch_durations_named AS ld
+        WHERE bd.block_timestamp >= ld.started_timestamp
+              AND bd.unblock_timestamp <= ld.finished_timestamp
+    ),
+    blocked_ui_threads AS (
+        SELECT *
+        FROM start_process_ui_threads AS sp,
+             block_launch_join AS blj
+        WHERE sp.atm_ui_thread_tid == unblock_pid
+              AND sp.process_name = blj.proc_name
+    ),
+    summed_raw AS (
+        SELECT SUM(unblock_timestamp-block_timestamp)*1000 AS sum_block_duration_ms,
+               *
+        FROM blocked_ui_threads
+        GROUP BY unblock_pid
+    ),
+    summed_neat AS (
+        SELECT sum_block_duration_ms AS blocked_iowait_duration_ms,
+               process_name,
+               (finished_timestamp - started_timestamp) * 1000 AS launching_duration_ms,
+               started_timestamp * 1000 AS launching_started_timestamp_ms,
+               finished_timestamp * 1000 AS launching_finished_timestamp_ms
+                -- filter out the rest because its just selecting 1 arbitrary row (due to the SUM aggregate).,
+        FROM summed_raw
+    )
+SELECT * FROM summed_neat;
+
+SELECT * FROM blocked_iowait_for_app_launches;
diff --git a/startop/scripts/trace_analyzer/queries_find_sched_switch_unblocked.sql b/startop/scripts/trace_analyzer/queries_find_sched_switch_unblocked.sql
new file mode 100644
index 0000000..788d0da
--- /dev/null
+++ b/startop/scripts/trace_analyzer/queries_find_sched_switch_unblocked.sql
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+DROP VIEW IF EXISTS sched_switch_iowaits_pre;
+
+-- scan for the closest pair such that:
+--                  sched_block_reason pid=$PID iowait=1 ...
+--                  ...
+--                  sched_switch next_pid=$PID
+CREATE VIEW sched_switch_iowaits_pre AS
+    SELECT MAX(sbr.id) AS blocked_id,
+           ss.id AS sched_switch_id,
+           pid,         -- iow.pid
+           iowait,      -- iowait=0 or iowait=1
+           caller,
+           sbr_f.timestamp AS blocked_timestamp,
+           ss_f.timestamp AS sched_switch_timestamp,
+           next_comm,   -- name of next_pid
+           next_pid     -- same as iow.pid
+    FROM sched_blocked_reasons AS sbr,
+         raw_ftrace_entries AS sbr_f,
+         sched_switches AS ss,
+         raw_ftrace_entries AS ss_f
+    WHERE sbr_f.id == sbr.id
+          AND ss_f.id == ss.id
+          AND sbr.pid == ss.next_pid
+          AND sbr.iowait = 1
+          AND sbr_f.timestamp < ss_f.timestamp     -- ensures the 'closest' sched_blocked_reason is selected.
+    GROUP BY ss.id
+;
+
+DROP VIEW IF EXISTS sched_switch_iowaits;
+
+CREATE VIEW sched_switch_iowaits AS
+    SELECT *, MIN(sched_switch_timestamp) AS ss_timestamp      -- drop all of the 'too large' sched_switch entries except the closest one.
+    FROM sched_switch_iowaits_pre
+    GROUP BY blocked_id;
+
+SELECT * FROM sched_switch_iowaits;
+
+-- use a real table here instead of a view, otherwise SQLiteStudio segfaults for some reason.
+DROP TABLE IF EXISTS blocking_durations;
+
+CREATE TABLE blocking_durations AS
+WITH
+    blocking_durations_raw AS (
+        SELECT MAX(ss.id) AS block_id,
+               ssf.timestamp AS block_timestamp,
+               iow.sched_switch_timestamp AS unblock_timestamp,
+               ss.prev_comm as block_prev_comm,
+               iow.next_comm AS unblock_next_comm,
+               ss.prev_state AS block_prev_state,
+               iow.sched_switch_id AS unblock_id,
+               iow.pid AS unblock_pid,
+               iow.caller AS unblock_caller
+        FROM sched_switches AS ss,          -- this is the sched_switch that caused a block (in the future when it unblocks, the reason is iowait=1).
+             sched_switch_iowaits AS iow,    -- this is the sched_switch that removes the block (it is now running again).
+             raw_ftrace_entries AS ssf
+        WHERE ssf.id = ss.id AND ss.prev_pid == iow.next_pid AND ssf.timestamp < iow.sched_switch_timestamp
+        GROUP BY unblock_timestamp 
+    ),
+    blocking_durations_tmp AS (
+        SELECT block_id,
+               unblock_timestamp,
+               block_timestamp,
+               block_prev_comm as comm,
+               block_prev_state as block_state,
+               unblock_id,
+               unblock_pid,
+               unblock_caller
+        FROM blocking_durations_raw
+    )
+    SELECT * FROM blocking_durations_tmp;-- ORDER BY block_id ASC;
+    --SELECT SUM(block_duration_ms) AS sum, * FROM blocking_durations GROUP BY unblock_pid ORDER BY sum DESC;
+
+DROP INDEX IF EXISTS "blocking_durations_block_timestamp";
+
+CREATE INDEX "blocking_durations_block_timestamp" ON blocking_durations (
+    block_timestamp COLLATE BINARY COLLATE BINARY
+);
+
+DROP INDEX IF EXISTS "blocking_durations_unblock_timestamp";
+
+CREATE INDEX "blocking_durations_unblock_timestamp" ON blocking_durations (
+    unblock_timestamp COLLATE BINARY COLLATE BINARY
+);
+
+SELECT * FROM blocking_durations;
diff --git a/startop/scripts/trace_analyzer/queries_get_comm_and_pids.sql b/startop/scripts/trace_analyzer/queries_get_comm_and_pids.sql
new file mode 100644
index 0000000..0c166b0
--- /dev/null
+++ b/startop/scripts/trace_analyzer/queries_get_comm_and_pids.sql
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+DROP VIEW IF EXISTS sched_switch_next_comm_pids;
+
+CREATE VIEW IF NOT EXISTS sched_switch_next_comm_pids AS
+
+-- TODO: switch to using sched_switches table.
+
+WITH
+    sched_switchs AS (
+        SELECT * FROM raw_ftrace_entries WHERE function = 'sched_switch' AND function_args LIKE '% next_pid=%' AND function_args NOT LIKE '% next_comm=main %'
+    ),
+    comm_and_pids_raws AS (
+        SELECT id,
+               SUBSTR(function_args, instr(function_args, "next_comm="), instr(function_args, "next_pid=") - instr(function_args, "next_comm=")) AS next_comm_raw,
+               SUBSTR(function_args, instr(function_args, "next_pid="), instr(function_args, "next_prio=") - instr(function_args, "next_pid=")) AS next_pid_raw
+        FROM sched_switchs
+    ),
+    comm_and_pids AS (
+        SELECT id,
+               id AS raw_ftrace_entry_id,
+               TRIM(SUBSTR(next_pid_raw, 10)) AS next_pid, -- len("next_pid=") is 10
+               TRIM(SUBSTR(next_comm_raw, 11)) AS next_comm -- len("next_comm=") is 11
+        FROM comm_and_pids_raws
+    )
+SELECT * from comm_and_pids;
+
+SELECT * from sched_switch_next_comm_pids;
diff --git a/startop/scripts/trace_analyzer/queries_get_procs.sql b/startop/scripts/trace_analyzer/queries_get_procs.sql
new file mode 100644
index 0000000..06871c6
--- /dev/null
+++ b/startop/scripts/trace_analyzer/queries_get_procs.sql
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+DROP VIEW IF EXISTS start_procs;
+
+CREATE VIEW IF NOT EXISTS start_procs AS
+WITH
+  start_procs_raw AS (
+      SELECT * from tracing_mark_write_split WHERE atrace_message LIKE 'Start proc: %'
+  ),
+  start_procs_substr AS (
+      -- note: "12" is len("Start proc: ")+1. sqlite indices start at 1.
+      SELECT raw_ftrace_entry_id, atrace_pid, SUBSTR(atrace_message, 13) AS process_name FROM start_procs_raw
+  )
+SELECT * from start_procs_substr;
+
+SELECT * from start_procs;
diff --git a/startop/scripts/trace_analyzer/queries_get_ui_threads.sql b/startop/scripts/trace_analyzer/queries_get_ui_threads.sql
new file mode 100644
index 0000000..876e50e
--- /dev/null
+++ b/startop/scripts/trace_analyzer/queries_get_ui_threads.sql
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+-- note: These queries do comparisons based on raw_ftrace_entries.id by treating it as if it was equivalent to the temporal timestamp.
+-- in practice, the ID of raw_ftrace_entries is based on its order in the ftrace buffer [and on the same cpu its equivalent].
+-- we can always resort raw_ftrace_entries to ensure id order matches timestamp order. We should rarely need to compare by timestamp directly.
+-- accessing 'floats' is inferior as they are harder to index, and will result in slower queries.
+--
+-- Naming convention note: '_fid' corresponds to 'raw_ftrace_entry.id'.
+DROP VIEW IF EXISTS start_process_ui_threads;
+
+-- Map of started process names to their UI thread's TID (as returned by gettid).
+CREATE VIEW IF NOT EXISTS start_process_ui_threads AS
+WITH
+  start_proc_tids AS (
+    SELECT sp.raw_ftrace_entry_id AS start_proc_fid,
+           sp.atrace_pid AS atrace_pid,
+           sp.process_name AS process_name,
+           --MIN(nc.raw_ftrace_entry_id) as next_comm_fid,
+           nc.raw_ftrace_entry_id AS next_comm_fid,
+           nc.next_pid as next_pid,
+           nc.next_comm as next_comm,
+           SUBSTR(sp.process_name, -15) AS cut      -- why -15? See TASK_MAX in kernel, the sched_switch name is truncated to 16 bytes.
+    FROM start_procs AS sp,
+         sched_switch_next_comm_pids AS nc
+    WHERE sp.process_name LIKE '%' || nc.next_comm  -- kernel truncates the sched_switch::next_comm event, so we must match the prefix of the full name.
+    --WHERE SUBSTR(sp.process_name, -16) == nc.next_comm
+    --WHERE cut == nc.next_comm
+  ),
+  start_proc_tids_filtered AS (
+      SELECT *
+      FROM start_proc_tids
+      WHERE next_comm_fid > start_proc_fid        -- safeguard that avoids choosing "earlier" sched_switch before process was even started.
+      --ORDER BY start_proc_fid, next_comm_fid
+  ),
+  start_proc_all_threads AS (
+    SELECT DISTINCT
+        start_proc_fid, -- this is the ftrace entry of the system server 'Start proc: $process_name'. only need this to join for timestamp.
+        process_name,               -- this is the '$process_name' from the system server entry.
+        -- next up we have all the possible thread IDs as parsed from sched_switch that corresponds most closest to the start proc.
+        next_pid AS ui_thread_tpid, -- sched_switch.next_pid. This can be any of the threads in that process, it's not necessarily the main UI thread yet.
+        next_comm,
+        MIN(next_comm_fid) AS next_comm_fid   -- don't pick the 'later' next_comm_fid because it could correspond to another app start.
+    FROM start_proc_tids_filtered
+    GROUP BY start_proc_fid, ui_thread_tpid
+  ),
+  activity_thread_mains AS (
+    SELECT * FROM tracing_mark_write_split WHERE atrace_message = 'ActivityThreadMain'
+  ),
+  start_proc_ui_threads AS (
+    SELECT start_proc_fid,
+           process_name,
+           ui_thread_tpid,
+           next_comm,
+           next_comm_fid,
+           atm.raw_ftrace_entry_id as atm_fid,
+           atm.atrace_pid as atm_ui_thread_tid
+    FROM start_proc_all_threads AS spt, 
+         activity_thread_mains AS atm
+    WHERE atm.atrace_pid == spt.ui_thread_tpid AND atm.raw_ftrace_entry_id > spt.start_proc_fid -- Ensure we ignore earlier ActivityThreadMains prior to their Start proc.
+  ),
+  start_proc_ui_threads_filtered AS (
+    SELECT start_proc_fid,
+           process_name,                -- e.g. 'com.android.settings'
+           --ui_thread_tpid,
+           --next_comm,
+           --next_comm_fid,
+           MIN(atm_fid) AS atm_fid,
+           atm_ui_thread_tid            -- equivalent to gettid() for the process's UI thread.
+    FROM start_proc_ui_threads
+    GROUP BY start_proc_fid, atm_ui_thread_tid    -- find the temporally closest ActivityTaskMain to a "Start proc: $process_name"
+  )
+SELECT * FROM start_proc_ui_threads_filtered;
+
+SELECT * FROM start_process_ui_threads;
diff --git a/startop/scripts/trace_analyzer/queries_mark_write_join.sql b/startop/scripts/trace_analyzer/queries_mark_write_join.sql
new file mode 100644
index 0000000..100f0740
--- /dev/null
+++ b/startop/scripts/trace_analyzer/queries_mark_write_join.sql
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+DROP TABLE IF EXISTS tracing_mark_write_split;
+
+CREATE TABLE tracing_mark_write_split (
+    raw_ftrace_entry_id INT REFERENCES raw_ftrace_entries (id),
+    atrace_type CHAR(1), -- only null for the first 2 sync timers. usually 'B', 'C', E', ...
+    atrace_pid INT,      -- only null for first 2 sync timers
+    atrace_message,      -- usually null for type='E' etc.
+    atrace_count,        -- usually non-null only for 'C'
+
+    UNIQUE(raw_ftrace_entry_id) -- drops redundant inserts into table
+);
+
+INSERT INTO tracing_mark_write_split
+WITH
+    pivoted AS (
+        SELECT tx.predictorset_id,
+               --ty.predictorset_id,
+               --tz.predictorset_id,
+               --tzz.predictorset_id,
+               tx.predictor_name AS atrace_type,
+               CAST(ty.predictor_name  AS integer) AS atrace_pid,
+               tz.predictor_name AS atrace_message,
+               CAST(tzz.predictor_name AS integer) AS atrace_count
+        FROM (SELECT * from tracing_mark_write_split_array WHERE gen = 1) AS tx
+        LEFT JOIN
+             (SELECT * FROM tracing_mark_write_split_array WHERE gen = 2) AS ty
+        ON tx.predictorset_id = ty.predictorset_id
+        LEFT JOIN
+             (SELECT * FROM tracing_mark_write_split_array WHERE gen = 3) AS tz
+        ON tx.predictorset_id = tz.predictorset_id
+        LEFT JOIN
+             (SELECT * FROM tracing_mark_write_split_array WHERE gen = 4) AS tzz
+        ON tx.predictorset_id = tzz.predictorset_id
+    )
+SELECT * from pivoted ORDER BY predictorset_id;-- LIMIT 100;
+
+SELECT * FROM tracing_mark_write_split;
diff --git a/startop/scripts/trace_analyzer/queries_pretty_print_block_launch.sql b/startop/scripts/trace_analyzer/queries_pretty_print_block_launch.sql
new file mode 100644
index 0000000..bf5e3cc
--- /dev/null
+++ b/startop/scripts/trace_analyzer/queries_pretty_print_block_launch.sql
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+.headers on
+.mode quote
+
+SELECT * FROM blocked_iowait_for_app_launches;
+
+/*
+Output as CSV example:
+
+'blocked_iowait_duration_ms','process_name','launching_duration_ms','launching_started_timestamp_ms','launching_finished_timestamp_ms'
+125.33199995596078224,'com.android.settings',1022.4840000009862706,17149896.822000000626,17150919.305999998003
+
+*/
diff --git a/startop/scripts/trace_analyzer/run-sql-queries b/startop/scripts/trace_analyzer/run-sql-queries
new file mode 100755
index 0000000..61a0ad4
--- /dev/null
+++ b/startop/scripts/trace_analyzer/run-sql-queries
@@ -0,0 +1,79 @@
+#!/bin/bash
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+DIR="$( cd "$(dirname "$0")" ; pwd -P )"
+
+if [[ $# -lt 1 ]]; then
+  echo "Usage: $0 <db-file>"
+fi
+
+DB_TARGET=$1
+
+if ! [[ -f $DB_TARGET ]]; then
+  echo "ERROR: File '$DB_TARGET' does not exist." >&2
+  exit 1
+fi
+
+exec_sql_file() {
+  local filename="$1"
+  if ! [[ -f $filename ]]; then
+    echo "ERROR: Can't exec SQL file, '$filename' does not exist." >&2
+    return 1
+  fi
+
+  sqlite3 "$DB_TARGET" < "$DIR"/"$filename"
+}
+
+exec_sql_file_quiet() {
+  exec_sql_file "$@" > /dev/null
+}
+
+# Some views/tables need other views already created, so order does matter.
+# x -> y , means x depends on y.
+
+# View: tracing_mark_writes
+# Table: tracing_mark_write_split_array -> tracing_mark_writes
+exec_sql_file_quiet "queries_all.sql"
+
+# Table: tracing_mark_write_split -> tracing_mark_write_split_array
+exec_sql_file_quiet "queries_mark_write_join.sql"
+
+# View: start_procs -> tracing_mark_write_split
+exec_sql_file_quiet "queries_get_procs.sql"
+
+# View: sched_switch_next_comm_pids
+exec_sql_file_quiet "queries_get_comm_and_pids.sql"
+
+# View: start_process_ui_threads -> start_procs, sched_switch_next_comm_pids
+exec_sql_file_quiet "queries_get_ui_threads.sql"
+
+# View: launch_durations_named -> tracing_mark_write_split
+exec_sql_file_quiet "queries_app_launch_spans_with_name.sql"
+
+# View: sched_switch_iowaits_pre
+# View: sched_switch_iowaits -> sched_switch_iowaits_pre
+# Table: blocking_durations -> sched_switch_iowaits
+exec_sql_file_quiet "queries_find_sched_switch_unblocked.sql"
+
+# View: blocked_iowait_for_app_launches -> launch_durations_named, blocking_durations
+exec_sql_file_quiet "queries_block_launch.sql"
+
+#####
+#####
+#####
+
+# Final queries
+
+exec_sql_file "queries_pretty_print_block_launch.sql"
diff --git a/startop/scripts/trace_analyzer/test_fixtures/common_systrace b/startop/scripts/trace_analyzer/test_fixtures/common_systrace
new file mode 100644
index 0000000..802cb55
--- /dev/null
+++ b/startop/scripts/trace_analyzer/test_fixtures/common_systrace
@@ -0,0 +1,518 @@
+# tracer: nop
+#
+# entries-in-buffer/entries-written: 411983/411983   #P:8
+#
+#                                      _-----=> irqs-off
+#                                     / _----=> need-resched
+#                                    | / _---=> hardirq/softirq
+#                                    || / _--=> preempt-depth
+#                                    ||| /     delay
+#           TASK-PID    TGID   CPU#  ||||    TIMESTAMP  FUNCTION
+#              | |        |      |   ||||       |         |
+           <...>-14603 (-----) [000] ...1 14592.893157: tracing_mark_write: trace_event_clock_sync: parent_ts=14592.892578
+           <...>-14603 (-----) [000] ...1 14592.893172: tracing_mark_write: trace_event_clock_sync: realtime_ts=1557129597951
+           <...>-18150 (-----) [004] d..2 14594.182110: sched_switch: prev_comm=kworker/u16:18 prev_pid=18150 prev_prio=120 prev_state=D ==> next_comm=kworker/u16:16 next_pid=23269 next_prio=120
+  kworker/u16:16-23269 (23269) [004] d.h3 14594.182228: sched_blocked_reason: pid=18150 iowait=0 caller=a6xx_oob_set+0x194/0x3dc
+  kworker/u16:16-23269 (23269) [004] d..2 14594.182248: sched_switch: prev_comm=kworker/u16:16 prev_pid=23269 prev_prio=120 prev_state=D ==> next_comm=kworker/u16:18 next_pid=18150 next_prio=120
+           <...>-18150 (-----) [004] d..2 14594.182312: sched_switch: prev_comm=kworker/u16:18 prev_pid=18150 prev_prio=120 prev_state=D ==> next_comm=swapper/4 next_pid=0 next_prio=120
+           <...>-18150 (-----) [004] d..2 14594.182488: sched_switch: prev_comm=kworker/u16:18 prev_pid=18150 prev_prio=120 prev_state=D ==> next_comm=swapper/4 next_pid=0 next_prio=120
+  kworker/u16:16-23269 (23269) [005] d..2 14594.182610: sched_switch: prev_comm=kworker/u16:16 prev_pid=23269 prev_prio=120 prev_state=S ==> next_comm=swapper/5 next_pid=0 next_prio=120
+           <...>-18150 (-----) [004] d..2 14594.182626: sched_switch: prev_comm=kworker/u16:18 prev_pid=18150 prev_prio=120 prev_state=D ==> next_comm=swapper/4 next_pid=0 next_prio=120
+           <...>-18150 (-----) [004] d..2 14594.182755: sched_switch: prev_comm=kworker/u16:18 prev_pid=18150 prev_prio=120 prev_state=D ==> next_comm=swapper/4 next_pid=0 next_prio=120
+           <...>-18150 (-----) [004] d..2 14594.182975: sched_switch: prev_comm=kworker/u16:18 prev_pid=18150 prev_prio=120 prev_state=D ==> next_comm=swapper/4 next_pid=0 next_prio=120
+           <...>-18150 (-----) [004] d..2 14594.183209: sched_switch: prev_comm=kworker/u16:18 prev_pid=18150 prev_prio=120 prev_state=D ==> next_comm=swapper/4 next_pid=0 next_prio=120
+           <...>-18150 (-----) [004] d..2 14594.183371: sched_switch: prev_comm=kworker/u16:18 prev_pid=18150 prev_prio=120 prev_state=D ==> next_comm=swapper/4 next_pid=0 next_prio=120
+           <...>-18150 (-----) [004] d..2 14594.184286: sched_switch: prev_comm=kworker/u16:18 prev_pid=18150 prev_prio=120 prev_state=S ==> next_comm=swapper/4 next_pid=0 next_prio=120
+  kworker/u16:16-23269 (23269) [005] d..2 14594.184495: sched_switch: prev_comm=kworker/u16:16 prev_pid=23269 prev_prio=120 prev_state=S ==> next_comm=swapper/5 next_pid=0 next_prio=120
+           <...>-18150 (-----) [004] d..2 14594.184498: sched_switch: prev_comm=kworker/u16:18 prev_pid=18150 prev_prio=120 prev_state=S ==> next_comm=swapper/4 next_pid=0 next_prio=120
+     ksoftirqd/4-47    (   47) [004] d..2 14594.185678: sched_switch: prev_comm=ksoftirqd/4 prev_pid=47 prev_prio=120 prev_state=S ==> next_comm=swapper/4 next_pid=0 next_prio=120
+     kworker/6:2-10610 (10610) [006] d..2 14594.186012: sched_switch: prev_comm=kworker/6:2 prev_pid=10610 prev_prio=120 prev_state=S ==> next_comm=swapper/6 next_pid=0 next_prio=120
+           <...>-656   (-----) [001] .... 14594.219464: binder_set_priority: proc=625 thread=656 old=110 => new=120 desired=120
+           <...>-1803  (-----) [000] d..2 14594.219595: sched_switch: prev_comm=ndroid.systemui prev_pid=1803 prev_prio=120 prev_state=S ==> next_comm=swapper/0 next_pid=0 next_prio=120
+           <...>-3359  (-----) [001] ...1 14594.219856: tracing_mark_write: S|1368|launching: com.google.android.dialer|0
+           <...>-3359  (-----) [001] ...1 14594.219863: tracing_mark_write: B|1368|MetricsLogger:launchObserverNotifyActivityLaunched
+           <...>-3359  (-----) [001] ...1 14594.219869: tracing_mark_write: B|1368|MetricsLogger:convertActivityRecordToProto
+           <...>-1398  (-----) [006] ...1 14594.220160: tracing_mark_write: B|1368|updateInputWindows
+           <...>-3359  (-----) [001] .... 14594.220230: binder_set_priority: proc=1368 thread=3359 old=110 => new=120 desired=120
+           <...>-1398  (-----) [006] ...1 14594.220588: tracing_mark_write: B|1368|android.os.Handler: com.android.server.wm.AppWindowToken$1
+           <...>-1398  (-----) [006] ...1 14594.220722: tracing_mark_write: B|1368|ResourcesManager#getResources
+           <...>-1052  (-----) [002] d..2 14594.220884: sched_switch: prev_comm=statsd.writer prev_pid=1052 prev_prio=120 prev_state=S ==> next_comm=UiThreadHelper next_pid=2045 next_prio=118
+           <...>-1398  (-----) [006] ...1 14594.220926: tracing_mark_write: B|1368|Theme::ApplyStyle
+           <...>-1398  (-----) [006] ...1 14594.220929: tracing_mark_write: B|1368|AssetManager::GetBag
+           <...>-2007  (-----) [007] ...1 14594.220996: tracing_mark_write: B|2007|Choreographer#doFrame
+           <...>-2007  (-----) [007] ...1 14594.221005: tracing_mark_write: B|2007|animation
+           <...>-1398  (-----) [006] ...1 14594.221015: tracing_mark_write: B|1368|ResourcesManager#getResources
+           <...>-2045  (-----) [002] ...2 14594.221035: binder_set_priority: proc=1368 thread=1903 old=120 => new=118 desired=118
+           <...>-2045  (-----) [002] d..2 14594.221065: sched_switch: prev_comm=UiThreadHelper prev_pid=2045 prev_prio=118 prev_state=S ==> next_comm=Binder:1368_4 next_pid=1903 next_prio=118
+           <...>-1398  (-----) [006] ...1 14594.221080: tracing_mark_write: B|1368|AssetManager::SetApkAssets
+           <...>-2007  (-----) [007] ...1 14594.221110: tracing_mark_write: B|2007|traversal
+           <...>-656   (-----) [000] ...1 14594.221137: tracing_mark_write: B|625|requestNextVsync
+           <...>-656   (-----) [000] ...1 14594.221141: tracing_mark_write: B|625|resetIdleTimer
+           <...>-2007  (-----) [007] ...1 14594.221146: tracing_mark_write: B|2007|draw
+           <...>-2007  (-----) [007] ...1 14594.221160: tracing_mark_write: B|2007|Record View#draw()
+           <...>-660   (-----) [005] d..2 14594.221285: sched_switch: prev_comm=app prev_pid=660 prev_prio=97 prev_state=S ==> next_comm=RenderThread next_pid=2738 next_prio=110
+           <...>-658   (-----) [004] d..2 14594.221327: sched_switch: prev_comm=DispSync prev_pid=658 prev_prio=97 prev_state=S ==> next_comm=android.display next_pid=1397 next_prio=117
+           <...>-2738  (-----) [005] ...1 14594.221342: tracing_mark_write: B|2007|notifyFramePending
+           <...>-2738  (-----) [005] ...1 14594.221362: tracing_mark_write: B|2007|DrawFrame
+           <...>-2738  (-----) [005] ...1 14594.221369: tracing_mark_write: B|2007|query
+           <...>-2007  (-----) [007] d..2 14594.221369: sched_switch: prev_comm=s.nexuslauncher prev_pid=2007 prev_prio=110 prev_state=S ==> next_comm=swapper/7 next_pid=0 next_prio=120
+           <...>-1903  (-----) [002] .... 14594.221397: binder_set_priority: proc=1368 thread=1903 old=118 => new=120 desired=120
+           <...>-2738  (-----) [005] ...2 14594.221400: binder_set_priority: proc=625 thread=656 old=120 => new=110 desired=110
+           <...>-2738  (-----) [005] d..2 14594.221430: sched_switch: prev_comm=RenderThread prev_pid=2738 prev_prio=110 prev_state=S ==> next_comm=Binder:625_1 next_pid=656 next_prio=110
+           <...>-1368  (-----) [003] ...1 14594.221431: tracing_mark_write: B|1368|Lock contention on GC thread flip lock (owner tid: 0)
+           <...>-656   (-----) [005] ...1 14594.221460: tracing_mark_write: B|625|query
+           <...>-656   (-----) [005] .... 14594.221528: binder_set_priority: proc=625 thread=656 old=110 => new=120 desired=120
+           <...>-2738  (-----) [007] ...1 14594.221552: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [007] ...2 14594.221563: binder_set_priority: proc=625 thread=656 old=120 => new=110 desired=110
+           <...>-2738  (-----) [007] d..2 14594.221600: sched_switch: prev_comm=RenderThread prev_pid=2738 prev_prio=110 prev_state=S ==> next_comm=Binder:625_1 next_pid=656 next_prio=110
+           <...>-1368  (-----) [003] d..2 14594.221623: sched_switch: prev_comm=system_server prev_pid=1368 prev_prio=118 prev_state=S ==> next_comm=swapper/3 next_pid=0 next_prio=120
+           <...>-656   (-----) [007] ...1 14594.221628: tracing_mark_write: B|625|query
+           <...>-23031 (-----) [001] d..2 14594.221643: sched_switch: prev_comm=UiAutomation prev_pid=23031 prev_prio=120 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120
+           <...>-2738  (-----) [007] ...1 14594.221664: tracing_mark_write: B|2007|syncFrameState
+           <...>-2738  (-----) [007] ...1 14594.221697: tracing_mark_write: B|2007|prepareTree
+           <...>-23008 (-----) [005] d..2 14594.221706: sched_switch: prev_comm=hub.uiautomator prev_pid=23008 prev_prio=120 prev_state=S ==> next_comm=swapper/5 next_pid=0 next_prio=120
+           <...>-656   (-----) [000] .... 14594.221737: binder_set_priority: proc=625 thread=656 old=110 => new=120 desired=120
+           <...>-1803  (-----) [003] d..2 14594.221747: sched_switch: prev_comm=ndroid.systemui prev_pid=1803 prev_prio=120 prev_state=S ==> next_comm=swapper/3 next_pid=0 next_prio=120
+           <...>-1397  (-----) [004] d..2 14594.221806: sched_switch: prev_comm=android.display prev_pid=1397 prev_prio=117 prev_state=S ==> next_comm=Binder:2007_A next_pid=4180 next_prio=120
+           <...>-1398  (-----) [006] d..2 14594.221816: sched_switch: prev_comm=android.anim prev_pid=1398 prev_prio=110 prev_state=R ==> next_comm=s.nexuslauncher next_pid=2007 next_prio=110
+           <...>-2738  (-----) [007] ...1 14594.221824: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [007] ...1 14594.221830: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [007] ...1 14594.221834: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [007] ...1 14594.221841: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [007] ...1 14594.221843: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [007] ...1 14594.221846: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [007] ...1 14594.221850: tracing_mark_write: B|2007|dequeueBuffer
+           <...>-2738  (-----) [007] ...2 14594.221864: binder_set_priority: proc=625 thread=656 old=120 => new=110 desired=110
+           <...>-2738  (-----) [007] d..2 14594.221985: sched_switch: prev_comm=RenderThread prev_pid=2738 prev_prio=110 prev_state=R+ ==> next_comm=crtc_event:97 next_pid=303 next_prio=83
+           <...>-2007  (-----) [006] ...1 14594.221989: tracing_mark_write: B|2007|topResumedActivityChangeItem
+           <...>-303   (-----) [007] d..2 14594.222016: sched_switch: prev_comm=crtc_event:97 prev_pid=303 prev_prio=83 prev_state=S ==> next_comm=rcu_preempt next_pid=7 next_prio=120
+     rcu_preempt-7     (    7) [007] d..2 14594.222035: sched_switch: prev_comm=rcu_preempt prev_pid=7 prev_prio=120 prev_state=S ==> next_comm=RenderThread next_pid=2738 next_prio=110
+     migration/4-46    (   46) [004] d..2 14594.222037: sched_switch: prev_comm=migration/4 prev_pid=46 prev_prio=0 prev_state=S ==> next_comm=Binder:625_1 next_pid=656 next_prio=110
+           <...>-2738  (-----) [007] d..2 14594.222039: sched_switch: prev_comm=RenderThread prev_pid=2738 prev_prio=110 prev_state=S ==> next_comm=kworker/u16:18 next_pid=18150 next_prio=120
+           <...>-656   (-----) [004] ...1 14594.222100: tracing_mark_write: B|625|dequeueBuffer
+           <...>-656   (-----) [004] ...1 14594.222114: tracing_mark_write: B|625|com.google.android.apps.nexuslauncher/com.google.android.apps.nexuslauncher.NexusLauncherActivity#1: 2
+           <...>-2007  (-----) [006] ...2 14594.222131: binder_set_priority: proc=1368 thread=1903 old=120 => new=110 desired=110
+           <...>-2007  (-----) [006] d..2 14594.222143: sched_switch: prev_comm=s.nexuslauncher prev_pid=2007 prev_prio=110 prev_state=S ==> next_comm=UiThreadHelper next_pid=2045 next_prio=118
+           <...>-2613  (-----) [001] d..2 14594.222158: sched_switch: prev_comm=ogle.android.as prev_pid=2613 prev_prio=120 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120
+           <...>-18150 (-----) [007] d..2 14594.222193: sched_switch: prev_comm=kworker/u16:18 prev_pid=18150 prev_prio=120 prev_state=S ==> next_comm=swapper/7 next_pid=0 next_prio=120
+           <...>-656   (-----) [004] .... 14594.222220: binder_set_priority: proc=625 thread=656 old=110 => new=120 desired=120
+           <...>-2738  (-----) [007] ...1 14594.222267: tracing_mark_write: B|2007|HWC release fence 36027 has signaled
+           <...>-656   (-----) [007] ...1 14594.223842: tracing_mark_write: B|625|queueBuffer
+           <...>-656   (-----) [007] ...1 14594.223845: tracing_mark_write: B|625|com.google.android.apps.nexuslauncher/com.google.android.apps.nexuslauncher.NexusLauncherActivity#1: 2
+           <...>-656   (-----) [007] ...1 14594.223871: tracing_mark_write: B|625|requestNextVsync
+           <...>-656   (-----) [007] ...1 14594.223873: tracing_mark_write: B|625|resetIdleTimer
+           <...>-656   (-----) [007] ...1 14594.223881: tracing_mark_write: B|625|addAndGetFrameTimestamps
+           <...>-1395  (-----) [001] d..2 14594.223909: sched_switch: prev_comm=android.ui prev_pid=1395 prev_prio=118 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120
+           <...>-2738  (-----) [007] ...1 14594.223959: tracing_mark_write: B|2007|Trace GPU completion fence 36027
+           <...>-11799 (-----) [006] ...1 14594.224006: tracing_mark_write: B|2007|waiting for GPU completion 36027
+           <...>-11799 (-----) [006] ...1 14594.224009: tracing_mark_write: B|2007|waitForever
+           <...>-2613  (-----) [004] d..2 14594.224014: sched_switch: prev_comm=ogle.android.as prev_pid=2613 prev_prio=120 prev_state=S ==> next_comm=Binder:1803_6 next_pid=2173 next_prio=120
+           <...>-11799 (-----) [006] d..1 14594.224014: fence_enable_signal: driver=kgsl-timeline timeline=kgsl-3d0_13-s.nexuslauncher(200 context=27 seqno=78002
+           <...>-11799 (-----) [006] d..2 14594.224021: sched_switch: prev_comm=GPU completion prev_pid=11799 prev_prio=110 prev_state=S ==> next_comm=rcuop/6 next_pid=68 next_prio=120
+         rcuop/6-68    (   68) [006] d..2 14594.224044: sched_switch: prev_comm=rcuop/6 prev_pid=68 prev_prio=120 prev_state=S ==> next_comm=swapper/6 next_pid=0 next_prio=120
+           <...>-259   (-----) [006] d..2 14594.224132: sched_switch: prev_comm=kgsl_worker_thr prev_pid=259 prev_prio=97 prev_state=S ==> next_comm=Binder:2007_A next_pid=4180 next_prio=120
+           <...>-3206  (-----) [001] d..2 14594.224167: sched_switch: prev_comm=aiai-vc-0 prev_pid=3206 prev_prio=139 prev_state=R ==> next_comm=ndroid.systemui next_pid=1803 next_prio=120
+    lowpool[847]-14589 ( 2446) [005] d..1 14594.224300: mm_filemap_delete_from_page_cache: dev 0:1 ino 3d0034 page=000000008247d586 pfn=676904 ofs=0
+           <...>-1803  (-----) [001] d..2 14594.224302: sched_switch: prev_comm=ndroid.systemui prev_pid=1803 prev_prio=120 prev_state=S ==> next_comm=aiai-vc-0 next_pid=3206 next_prio=139
+           <...>-3206  (-----) [001] d..2 14594.224433: sched_switch: prev_comm=aiai-vc-0 prev_pid=3206 prev_prio=139 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120
+           <...>-1903  (-----) [003] ...1 14594.224490: tracing_mark_write: B|1368|dispatchingStartProcess:com.google.android.dialer
+           <...>-1903  (-----) [003] ...1 14594.224659: tracing_mark_write: B|1368|wmLayout
+           <...>-1903  (-----) [003] ...1 14594.224666: tracing_mark_write: B|1368|performSurfacePlacement
+           <...>-1903  (-----) [003] ...1 14594.224683: tracing_mark_write: B|1368|applySurfaceChanges
+           <...>-1903  (-----) [003] ...1 14594.224688: tracing_mark_write: B|1368|openSurfaceTransaction
+           <...>-2738  (-----) [007] ...1 14594.224711: tracing_mark_write: B|2007|query
+           <...>-1903  (-----) [003] ...1 14594.224714: tracing_mark_write: B|1368|performLayout
+           <...>-2738  (-----) [007] ...1 14594.224714: tracing_mark_write: B|2007|query
+           <...>-1903  (-----) [003] ...1 14594.224723: tracing_mark_write: B|1368|applyPostLayoutPolicy
+           <...>-2738  (-----) [007] d..2 14594.224752: sched_switch: prev_comm=RenderThread prev_pid=2738 prev_prio=110 prev_state=S ==> next_comm=Binder:625_1 next_pid=656 next_prio=110
+           <...>-656   (-----) [007] .... 14594.224766: binder_set_priority: proc=625 thread=656 old=110 => new=120 desired=120
+           <...>-1398  (-----) [002] ...1 14594.224801: tracing_mark_write: B|1368|Theme::ApplyStyle
+           <...>-1398  (-----) [002] ...1 14594.224805: tracing_mark_write: B|1368|AssetManager::GetBag
+           <...>-1398  (-----) [002] ...1 14594.224820: tracing_mark_write: B|1368|AssetManager::GetBag
+           <...>-1398  (-----) [002] ...1 14594.224826: tracing_mark_write: B|1368|AssetManager::GetBag
+           <...>-1398  (-----) [002] ...1 14594.224833: tracing_mark_write: B|1368|AssetManager::GetBag
+           <...>-1398  (-----) [002] ...1 14594.224838: tracing_mark_write: B|1368|AssetManager::GetBag
+           <...>-1398  (-----) [002] ...1 14594.224846: tracing_mark_write: B|1368|AssetManager::GetBag
+           <...>-1398  (-----) [002] ...1 14594.224853: tracing_mark_write: B|1368|AssetManager::GetBag
+           <...>-1398  (-----) [002] ...1 14594.224859: tracing_mark_write: B|1368|AssetManager::GetBag
+           <...>-1398  (-----) [002] ...1 14594.224864: tracing_mark_write: B|1368|AssetManager::GetBag
+           <...>-18150 (-----) [006] d..2 14594.228407: sched_switch: prev_comm=kworker/u16:18 prev_pid=18150 prev_prio=120 prev_state=R+ ==> next_comm=mmc-cmdqd/0 next_pid=440 next_prio=98
+           <...>-2738  (-----) [007] d..2 14594.228411: sched_switch: prev_comm=RenderThread prev_pid=2738 prev_prio=110 prev_state=R+ ==> next_comm=kworker/7:0H next_pid=76 next_prio=100
+           <...>-1409  (-----) [004] ...1 14594.228417: tracing_mark_write: B|1368|Start proc: com.google.android.dialer
+           <...>-440   (-----) [006] d..2 14594.228418: sched_switch: prev_comm=mmc-cmdqd/0 prev_pid=440 prev_prio=98 prev_state=D ==> next_comm=kworker/u16:18 next_pid=18150 next_prio=120
+           <...>-76    (-----) [007] d..2 14594.228430: sched_switch: prev_comm=kworker/7:0H prev_pid=76 prev_prio=100 prev_state=R+ ==> next_comm=mmc-cmdqd/0 next_pid=440 next_prio=98
+           <...>-440   (-----) [007] d..2 14594.228434: sched_switch: prev_comm=mmc-cmdqd/0 prev_pid=440 prev_prio=98 prev_state=D ==> next_comm=kworker/7:0H next_pid=76 next_prio=100
+           <...>-18150 (-----) [006] d..3 14594.228442: sched_blocked_reason: pid=1398 iowait=1 caller=wait_on_page_bit_common+0x2a8/0x5f8
+           <...>-76    (-----) [007] d..2 14594.228442: sched_switch: prev_comm=kworker/7:0H prev_pid=76 prev_prio=100 prev_state=S ==> next_comm=RenderThread next_pid=2738 next_prio=110
+           <...>-2738  (-----) [007] ...2 14594.228446: binder_set_priority: proc=625 thread=656 old=120 => new=110 desired=110
+           <...>-18150 (-----) [006] d..2 14594.228447: sched_switch: prev_comm=kworker/u16:18 prev_pid=18150 prev_prio=120 prev_state=R+ ==> next_comm=android.anim next_pid=1398 next_prio=110
+           <...>-2738  (-----) [007] d..2 14594.228479: sched_switch: prev_comm=RenderThread prev_pid=2738 prev_prio=110 prev_state=S ==> next_comm=Binder:625_1 next_pid=656 next_prio=110
+           <...>-1409  (-----) [004] d..2 14594.228499: sched_switch: prev_comm=ActivityManager prev_pid=1409 prev_prio=118 prev_state=D ==> next_comm=Binder:965_2 next_pid=1041 next_prio=120
+           <...>-625   (-----) [003] ...1 14594.229271: tracing_mark_write: B|625|handleTransaction
+           <...>-1773  (-----) [004] .... 14594.229285: binder_set_priority: proc=625 thread=1773 old=110 => new=120 desired=120
+           <...>-440   (-----) [007] d..2 14594.229301: sched_switch: prev_comm=mmc-cmdqd/0 prev_pid=440 prev_prio=98 prev_state=D ==> next_comm=RenderThread next_pid=2738 next_prio=110
+           <...>-2738  (-----) [007] ...1 14594.229318: tracing_mark_write: B|2007|HWC release fence 36028 has signaled
+           <...>-2738  (-----) [007] ...1 14594.229331: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [007] ...1 14594.229337: tracing_mark_write: B|2007|eglBeginFrame
+           <...>-2738  (-----) [007] ...1 14594.229352: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [007] ...1 14594.229354: tracing_mark_write: B|2007|query
+           <...>-791   (-----) [000] d..2 14594.229357: sched_switch: prev_comm=main prev_pid=791 prev_prio=120 prev_state=S ==> next_comm=swapper/0 next_pid=0 next_prio=120
+           <...>-625   (-----) [003] ...1 14594.229440: tracing_mark_write: B|625|doTransaction
+           <...>-13916 (-----) [002] d..2 14594.229482: sched_switch: prev_comm=HeapTaskDaemon prev_pid=13916 prev_prio=124 prev_state=D|K ==> next_comm=swapper/2 next_pid=0 next_prio=120
+           <...>-13917 (-----) [001] d..2 14594.229492: sched_blocked_reason: pid=13916 iowait=0 caller=__rwsem_down_write_failed_common+0x3e8/0x754
+           <...>-625   (-----) [003] ...1 14594.229492: tracing_mark_write: B|625|doTransaction
+           <...>-625   (-----) [003] ...1 14594.229507: tracing_mark_write: B|625|doTransaction
+           <...>-13917 (-----) [001] d..2 14594.229523: sched_switch: prev_comm=ReferenceQueueD prev_pid=13917 prev_prio=124 prev_state=D ==> next_comm=swapper/1 next_pid=0 next_prio=120
+           <...>-13916 (-----) [002] d..2 14594.229535: sched_blocked_reason: pid=13917 iowait=0 caller=do_page_fault+0x550/0x5fc
+           <...>-625   (-----) [003] ...1 14594.229538: tracing_mark_write: B|625|doTransaction
+           <...>-2738  (-----) [007] ...1 14594.229543: tracing_mark_write: B|2007|flush commands
+           <...>-13916 (-----) [002] .... 14594.229562: sched_process_exit: comm=HeapTaskDaemon pid=13916 prio=124
+           <...>-625   (-----) [003] ...1 14594.229567: tracing_mark_write: B|625|doTransaction
+           <...>-625   (-----) [003] ...1 14594.229588: tracing_mark_write: B|625|doTransaction
+           <...>-625   (-----) [003] ...1 14594.229628: tracing_mark_write: B|625|doTransaction
+           <...>-625   (-----) [003] ...1 14594.229652: tracing_mark_write: B|625|doTransaction
+           <...>-13916 (-----) [002] d..2 14594.229676: sched_switch: prev_comm=HeapTaskDaemon prev_pid=13916 prev_prio=124 prev_state=x ==> next_comm=swapper/2 next_pid=0 next_prio=120
+           <...>-625   (-----) [003] ...1 14594.229676: tracing_mark_write: B|625|doTransaction
+           <...>-2007  (-----) [006] d..2 14594.229688: sched_switch: prev_comm=s.nexuslauncher prev_pid=2007 prev_prio=110 prev_state=S ==> next_comm=swapper/6 next_pid=0 next_prio=120
+           <...>-625   (-----) [003] ...1 14594.229703: tracing_mark_write: B|625|doTransaction
+           <...>-625   (-----) [003] ...1 14594.229725: tracing_mark_write: B|625|doTransaction
+           <...>-625   (-----) [003] ...1 14594.229750: tracing_mark_write: B|625|doTransaction
+           <...>-625   (-----) [003] ...1 14594.229772: tracing_mark_write: B|625|doTransaction
+           <...>-625   (-----) [003] ...1 14594.229792: tracing_mark_write: B|625|doTransaction
+           <...>-791   (-----) [000] d..2 14594.229811: sched_switch: prev_comm=main prev_pid=791 prev_prio=120 prev_state=S ==> next_comm=swapper/0 next_pid=0 next_prio=120
+           <...>-625   (-----) [003] ...1 14594.229824: tracing_mark_write: B|625|doTransaction
+           <...>-2738  (-----) [007] ...1 14594.229827: tracing_mark_write: B|2007|eglSwapBuffersWithDamageKHR
+           <...>-13917 (-----) [001] d..2 14594.229836: sched_switch: prev_comm=ReferenceQueueD prev_pid=13917 prev_prio=124 prev_state=D ==> next_comm=swapper/1 next_pid=0 next_prio=120
+           <...>-2738  (-----) [007] ...1 14594.229837: tracing_mark_write: B|2007|setSurfaceDamage
+           <...>-625   (-----) [003] ...1 14594.229850: tracing_mark_write: B|625|doTransaction
+           <...>-13918 (-----) [002] d..2 14594.229856: sched_blocked_reason: pid=13917 iowait=0 caller=SyS_madvise+0xd34/0xd3c
+           <...>-5281  (-----) [001] d..2 14594.229932: sched_switch: prev_comm=writer prev_pid=5281 prev_prio=96 prev_state=D ==> next_comm=swapper/1 next_pid=0 next_prio=120
+           <...>-89    (-----) [006] d..2 14594.229951: sched_switch: prev_comm=lpass_smem_glin prev_pid=89 prev_prio=98 prev_state=S ==> next_comm=swapper/6 next_pid=0 next_prio=120
+           <...>-625   (-----) [003] ...1 14594.229982: tracing_mark_write: B|625|handleMessageInvalidate
+           <...>-625   (-----) [003] ...1 14594.229984: tracing_mark_write: B|625|handlePageFlip
+           <...>-625   (-----) [003] ...1 14594.230013: tracing_mark_write: B|625|latchBuffer
+           <...>-13917 (-----) [000] .... 14594.230015: sched_process_exit: comm=ReferenceQueueD pid=13917 prio=124
+           <...>-625   (-----) [003] ...1 14594.230020: tracing_mark_write: B|625|query
+           <...>-625   (-----) [003] ...1 14594.230028: tracing_mark_write: B|625|updateTexImage
+           <...>-625   (-----) [003] ...1 14594.230035: tracing_mark_write: B|625|acquireBuffer
+           <...>-625   (-----) [003] ...1 14594.230044: tracing_mark_write: B|625|com.google.android.apps.nexuslauncher/com.google.android.apps.nexuslauncher.NexusLauncherActivity#1: 2
+           <...>-2738  (-----) [007] d..2 14594.230057: sched_switch: prev_comm=RenderThread prev_pid=2738 prev_prio=110 prev_state=D ==> next_comm=smem_native_lpa next_pid=88 next_prio=120
+           <...>-14607 (-----) [000] d..2 14594.259609: sched_blocked_reason: pid=14624 iowait=0 caller=__rwsem_down_write_failed_common+0x3e8/0x754
+           <...>-2738  (-----) [005] d..2 14594.259620: sched_switch: prev_comm=RenderThread prev_pid=2738 prev_prio=120 prev_state=S ==> next_comm=Binder:625_4 next_pid=1773 next_prio=120
+           <...>-1773  (-----) [005] ...1 14594.259649: tracing_mark_write: B|625|query
+           <...>-2738  (-----) [005] ...1 14594.259714: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [005] d..2 14594.259743: sched_switch: prev_comm=RenderThread prev_pid=2738 prev_prio=120 prev_state=S ==> next_comm=Binder:625_4 next_pid=1773 next_prio=120
+           <...>-1773  (-----) [005] ...1 14594.259757: tracing_mark_write: B|625|query
+           <...>-2738  (-----) [005] ...1 14594.259810: tracing_mark_write: B|2007|syncFrameState
+           <...>-2738  (-----) [005] ...1 14594.259856: tracing_mark_write: B|2007|prepareTree
+  Binder:14607_1-14624 (14607) [002] ...1 14594.259863: tracing_mark_write: B|14607|AttachCurrentThread
+  Binder:14607_1-14624 (14607) [002] ...1 14594.259869: tracing_mark_write: B|14607|Thread::Attach
+  Binder:14607_1-14624 (14607) [002] ...1 14594.259873: tracing_mark_write: B|14607|Thread birth
+  Binder:14607_1-14624 (14607) [002] ...1 14594.259916: tracing_mark_write: B|14607|Thread::Init
+  Binder:14607_1-14624 (14607) [002] ...1 14594.259920: tracing_mark_write: B|14607|InitStackHwm
+           <...>-14607 (-----) [000] d..2 14594.259932: sched_switch: prev_comm=.android.dialer prev_pid=14607 prev_prio=120 prev_state=D ==> next_comm=swapper/0 next_pid=0 next_prio=120
+  Binder:14607_1-14624 (14607) [002] d..2 14594.259941: sched_blocked_reason: pid=14607 iowait=0 caller=do_page_fault+0x550/0x5fc
+           <...>-3198  (-----) [001] ...1 14594.259942: tracing_mark_write: B|2007|Update SurfaceView position
+  Binder:14607_1-14624 (14607) [002] ...1 14594.259963: tracing_mark_write: B|14607|InitTlsEntryPoints
+  Binder:14607_1-14624 (14607) [002] ...1 14594.259974: tracing_mark_write: B|14607|InitInterpreterTls
+           <...>-14607 (-----) [000] d..2 14594.260005: sched_blocked_reason: pid=14624 iowait=0 caller=__rwsem_down_write_failed_common+0x3e8/0x754
+           <...>-3198  (-----) [001] d..2 14594.260007: sched_switch: prev_comm=hwuiTask1 prev_pid=3198 prev_prio=118 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120
+           <...>-14607 (-----) [000] d..2 14594.260024: sched_switch: prev_comm=.android.dialer prev_pid=14607 prev_prio=120 prev_state=D ==> next_comm=swapper/0 next_pid=0 next_prio=120
+  Binder:14607_1-14624 (14607) [002] d..2 14594.260038: sched_blocked_reason: pid=14607 iowait=0 caller=do_page_fault+0x550/0x5fc
+           <...>-14607 (-----) [000] d..2 14594.260064: sched_blocked_reason: pid=14624 iowait=0 caller=__rwsem_down_write_failed_common+0x3e8/0x754
+  Binder:14607_1-14624 (14607) [002] ...1 14594.260101: tracing_mark_write: B|14607|ThreadList::Register
+           <...>-2738  (-----) [005] ...1 14594.260128: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [005] ...1 14594.260140: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [005] ...1 14594.260148: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [005] ...1 14594.260155: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [005] ...1 14594.260161: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [005] ...1 14594.260167: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [005] ...1 14594.260173: tracing_mark_write: B|2007|dequeueBuffer
+           <...>-2007  (-----) [001] d..2 14594.260201: sched_switch: prev_comm=s.nexuslauncher prev_pid=2007 prev_prio=120 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120
+           <...>-2738  (-----) [005] d..2 14594.260214: sched_switch: prev_comm=RenderThread prev_pid=2738 prev_prio=120 prev_state=S ==> next_comm=Binder:625_4 next_pid=1773 next_prio=120
+           <...>-1773  (-----) [005] ...1 14594.260236: tracing_mark_write: B|625|dequeueBuffer
+           <...>-1773  (-----) [005] ...1 14594.260249: tracing_mark_write: B|625|com.google.android.apps.nexuslauncher/com.google.android.apps.nexuslauncher.NexusLauncherActivity#1: 2
+           <...>-14607 (-----) [000] d..2 14594.260334: sched_switch: prev_comm=.android.dialer prev_pid=14607 prev_prio=120 prev_state=D ==> next_comm=swapper/0 next_pid=0 next_prio=120
+  Binder:14607_1-14624 (14607) [002] d..2 14594.260343: sched_blocked_reason: pid=14607 iowait=0 caller=do_page_fault+0x550/0x5fc
+           <...>-14607 (-----) [000] d..2 14594.260376: sched_blocked_reason: pid=14624 iowait=0 caller=__rwsem_down_write_failed_common+0x3e8/0x754
+           <...>-14607 (-----) [000] d..2 14594.260387: sched_switch: prev_comm=.android.dialer prev_pid=14607 prev_prio=120 prev_state=D ==> next_comm=swapper/0 next_pid=0 next_prio=120
+           <...>-2738  (-----) [005] ...1 14594.260401: tracing_mark_write: B|2007|HWC release fence 36030 has signaled
+  Binder:14607_1-14624 (14607) [002] d..2 14594.260407: sched_blocked_reason: pid=14607 iowait=0 caller=do_page_fault+0x550/0x5fc
+           <...>-2738  (-----) [005] ...1 14594.260419: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [005] ...1 14594.260427: tracing_mark_write: B|2007|eglBeginFrame
+           <...>-2738  (-----) [005] ...1 14594.260445: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [005] ...1 14594.260450: tracing_mark_write: B|2007|query
+  Binder:14607_1-14624 (14607) [002] .... 14594.260472: task_newtask: pid=14625 comm=Binder:14607_1 clone_flags=3d0f00 oom_score_adj=-1000
+           <...>-14607 (-----) [000] d..2 14594.260517: sched_switch: prev_comm=.android.dialer prev_pid=14607 prev_prio=120 prev_state=D ==> next_comm=swapper/0 next_pid=0 next_prio=120
+  Binder:14607_2-14625 (14607) [001] d..2 14594.260525: sched_blocked_reason: pid=14607 iowait=0 caller=do_page_fault+0x550/0x5fc
+           <...>-14607 (-----) [000] d..2 14594.260555: sched_blocked_reason: pid=14625 iowait=0 caller=__rwsem_down_write_failed_common+0x3e8/0x754
+           <...>-14607 (-----) [000] ...1 14594.260569: tracing_mark_write: B|14607|ActivityThreadMain
+           <...>-14607 (-----) [000] d..2 14594.260581: sched_switch: prev_comm=.android.dialer prev_pid=14607 prev_prio=120 prev_state=D ==> next_comm=swapper/0 next_pid=0 next_prio=120
+  Binder:14607_2-14625 (14607) [001] d..2 14594.260588: sched_blocked_reason: pid=14607 iowait=0 caller=do_page_fault+0x550/0x5fc
+           <...>-14607 (-----) [000] d..2 14594.260611: sched_blocked_reason: pid=14625 iowait=0 caller=__rwsem_down_write_failed_common+0x3e8/0x754
+           <...>-14607 (-----) [000] d..2 14594.260623: sched_switch: prev_comm=.android.dialer prev_pid=14607 prev_prio=120 prev_state=D ==> next_comm=swapper/0 next_pid=0 next_prio=120
+  Binder:14607_2-14625 (14607) [001] d..2 14594.260636: sched_blocked_reason: pid=14607 iowait=0 caller=do_page_fault+0x550/0x5fc
+           <...>-14607 (-----) [000] d..2 14594.260663: sched_blocked_reason: pid=14625 iowait=0 caller=__rwsem_down_write_failed_common+0x3e8/0x754
+           <...>-14607 (-----) [000] d..2 14594.260674: sched_switch: prev_comm=.android.dialer prev_pid=14607 prev_prio=120 prev_state=D ==> next_comm=swapper/0 next_pid=0 next_prio=120
+  Binder:14607_2-14625 (14607) [001] d..2 14594.260694: sched_blocked_reason: pid=14607 iowait=0 caller=do_page_fault+0x550/0x5fc
+           <...>-14607 (-----) [000] d..2 14594.260724: sched_blocked_reason: pid=14625 iowait=0 caller=__rwsem_down_write_failed_common+0x3e8/0x754
+           <...>-2738  (-----) [005] ...1 14594.260734: tracing_mark_write: B|2007|flush commands
+           <...>-14607 (-----) [000] d..2 14594.260735: sched_switch: prev_comm=.android.dialer prev_pid=14607 prev_prio=120 prev_state=D ==> next_comm=swapper/0 next_pid=0 next_prio=120
+  Binder:14607_2-14625 (14607) [001] d..2 14594.260753: sched_blocked_reason: pid=14607 iowait=0 caller=do_page_fault+0x550/0x5fc
+  Binder:14607_2-14625 (14607) [001] ...1 14594.260925: tracing_mark_write: B|14607|AttachCurrentThread
+  Binder:14607_2-14625 (14607) [001] ...1 14594.260930: tracing_mark_write: B|14607|Thread::Attach
+  Binder:14607_2-14625 (14607) [001] ...1 14594.260933: tracing_mark_write: B|14607|Thread birth
+  Binder:14607_2-14625 (14607) [001] ...1 14594.260973: tracing_mark_write: B|14607|Thread::Init
+  Binder:14607_2-14625 (14607) [001] ...1 14594.260977: tracing_mark_write: B|14607|InitStackHwm
+           <...>-14607 (-----) [000] d..2 14594.260990: sched_switch: prev_comm=.android.dialer prev_pid=14607 prev_prio=120 prev_state=D ==> next_comm=swapper/0 next_pid=0 next_prio=120
+  Binder:14607_2-14625 (14607) [001] d..2 14594.260998: sched_blocked_reason: pid=14607 iowait=0 caller=do_page_fault+0x550/0x5fc
+  Binder:14607_2-14625 (14607) [001] ...1 14594.261023: tracing_mark_write: B|14607|InitTlsEntryPoints
+  Binder:14607_2-14625 (14607) [001] ...1 14594.261034: tracing_mark_write: B|14607|InitInterpreterTls
+           <...>-14607 (-----) [000] d..2 14594.261064: sched_blocked_reason: pid=14625 iowait=0 caller=__rwsem_down_write_failed_common+0x3e8/0x754
+           <...>-14607 (-----) [000] d..2 14594.261075: sched_switch: prev_comm=.android.dialer prev_pid=14607 prev_prio=120 prev_state=D ==> next_comm=swapper/0 next_pid=0 next_prio=120
+  Binder:14607_2-14625 (14607) [001] d..2 14594.261094: sched_blocked_reason: pid=14607 iowait=0 caller=do_page_fault+0x550/0x5fc
+           <...>-14607 (-----) [000] d..2 14594.261120: sched_blocked_reason: pid=14625 iowait=0 caller=__rwsem_down_write_failed_common+0x3e8/0x754
+           <...>-14607 (-----) [000] d..2 14594.261132: sched_switch: prev_comm=.android.dialer prev_pid=14607 prev_prio=120 prev_state=D ==> next_comm=swapper/0 next_pid=0 next_prio=120
+  Binder:14607_2-14625 (14607) [001] d..2 14594.261146: sched_blocked_reason: pid=14607 iowait=0 caller=do_page_fault+0x550/0x5fc
+  Binder:14607_2-14625 (14607) [001] ...1 14594.261167: tracing_mark_write: B|14607|ThreadList::Register
+           <...>-14607 (-----) [000] d..2 14594.261209: sched_blocked_reason: pid=14625 iowait=0 caller=__rwsem_down_write_failed_common+0x3e8/0x754
+           <...>-2738  (-----) [005] ...1 14594.261212: tracing_mark_write: B|2007|waitOnFences
+           <...>-14607 (-----) [000] d..2 14594.261220: sched_switch: prev_comm=.android.dialer prev_pid=14607 prev_prio=120 prev_state=D ==> next_comm=swapper/0 next_pid=0 next_prio=120
+           <...>-2738  (-----) [005] ...1 14594.261232: tracing_mark_write: B|2007|eglSwapBuffersWithDamageKHR
+           <...>-2738  (-----) [005] ...1 14594.261244: tracing_mark_write: B|2007|setSurfaceDamage
+  Binder:14607_2-14625 (14607) [001] d..2 14594.261246: sched_blocked_reason: pid=14607 iowait=0 caller=do_page_fault+0x550/0x5fc
+           <...>-14607 (-----) [000] ...1 14594.261326: tracing_mark_write: B|14607|VerifyClass com.android.org.conscrypt.TrustedCertificateStore$PreloadHolder
+           <...>-2738  (-----) [005] .... 14594.261621: fence_init: driver=kgsl-timeline timeline=kgsl-3d0_13-s.nexuslauncher(200 context=27 seqno=78005
+           <...>-625   (-----) [003] ...1 14594.263903: tracing_mark_write: B|625|resetIdleTimer
+           <...>-625   (-----) [003] ...1 14594.263912: tracing_mark_write: B|625|rebuildLayerStacks
+           <...>-625   (-----) [003] ...1 14594.263915: tracing_mark_write: B|625|rebuildLayerStacks VR Dirty
+           <...>-625   (-----) [003] ...1 14594.263919: tracing_mark_write: B|625|computeVisibleRegions
+           <...>-1398  (-----) [006] d..2 14594.263966: sched_switch: prev_comm=android.anim prev_pid=1398 prev_prio=110 prev_state=S ==> next_comm=Binder:625_4 next_pid=1773 next_prio=120
+           <...>-1695  (-----) [001] d..2 14594.264086: sched_switch: prev_comm=InputDispatcher prev_pid=1695 prev_prio=112 prev_state=S ==> next_comm=Binder:1368_14 next_pid=3253 next_prio=120
+           <...>-625   (-----) [003] ...1 14594.264293: tracing_mark_write: B|625|calculateWorkingSet
+           <...>-625   (-----) [003] ...1 14594.264500: tracing_mark_write: B|625|prepare
+           <...>-625   (-----) [003] ...1 14594.264513: tracing_mark_write: B|625|HIDL::IComposerClient::executeCommands_2_2::client
+           <...>-625   (-----) [003] ...2 14594.264584: binder_set_priority: proc=627 thread=627 old=97 => new=98 desired=98
+           <...>-625   (-----) [003] d..2 14594.264617: sched_switch: prev_comm=surfaceflinger prev_pid=625 prev_prio=98 prev_state=S ==> next_comm=logd.writer next_pid=588 next_prio=130
+           <...>-588   (-----) [003] d..2 14594.264851: sched_switch: prev_comm=logd.writer prev_pid=588 prev_prio=130 prev_state=S ==> next_comm=swapper/3 next_pid=0 next_prio=120
+     rcu_preempt-7     (    7) [007] d..2 14594.265273: sched_switch: prev_comm=rcu_preempt prev_pid=7 prev_prio=120 prev_state=S ==> next_comm=kworker/u16:3 next_pid=18008 next_prio=120
+           <...>-18008 (-----) [007] d..2 14594.265404: sched_switch: prev_comm=kworker/u16:3 prev_pid=18008 prev_prio=120 prev_state=D ==> next_comm=swapper/7 next_pid=0 next_prio=120
+           <...>-18008 (-----) [007] d..2 14594.265471: sched_switch: prev_comm=kworker/u16:3 prev_pid=18008 prev_prio=120 prev_state=S ==> next_comm=swapper/7 next_pid=0 next_prio=120
+           <...>-625   (-----) [003] ...1 14594.265496: tracing_mark_write: B|625|doComposition
+           <...>-625   (-----) [003] ...1 14594.265507: tracing_mark_write: B|625|doComposeSurfaces
+           <...>-625   (-----) [003] ...1 14594.265552: tracing_mark_write: B|625|acquireBuffer
+           <...>-625   (-----) [003] ...1 14594.265563: tracing_mark_write: B|625|postFramebuffer
+           <...>-625   (-----) [003] ...1 14594.265567: tracing_mark_write: B|625|presentAndGetReleaseFences
+           <...>-625   (-----) [003] d..1 14594.265601: fence_enable_signal: driver=sde_fence:crtc97:91650 timeline=crtc97 context=3 seqno=91650
+           <...>-625   (-----) [003] ...1 14594.265735: tracing_mark_write: B|625|logLayerStats
+           <...>-625   (-----) [003] ...1 14594.265744: tracing_mark_write: B|625|postComposition
+           <...>-625   (-----) [003] ...1 14594.265749: tracing_mark_write: B|625|releaseBuffer
+           <...>-625   (-----) [003] ...1 14594.265753: tracing_mark_write: B|625|com.google.android.apps.nexuslauncher/com.google.android.apps.nexuslauncher.NexusLauncherActivity#1: 1
+           <...>-625   (-----) [003] ...1 14594.265791: tracing_mark_write: B|625|releaseBuffer
+           <...>-440   (-----) [007] d..2 14594.342366: sched_switch: prev_comm=mmc-cmdqd/0 prev_pid=440 prev_prio=98 prev_state=D ==> next_comm=kworker/u17:2 next_pid=1778 next_prio=100
+           <...>-2007  (-----) [006] ...1 14594.342375: tracing_mark_write: B|2007|input
+           <...>-2007  (-----) [006] ...1 14594.342399: tracing_mark_write: B|2007|animation
+           <...>-625   (-----) [003] ...1 14594.342447: tracing_mark_write: B|625|doTransaction
+           <...>-625   (-----) [003] ...1 14594.342489: tracing_mark_write: B|625|doTransaction
+   kworker/u17:2-1778  ( 1778) [007] d..3 14594.342532: sched_blocked_reason: pid=14607 iowait=1 caller=wait_on_page_bit_common+0x2a8/0x5f8
+   kworker/u17:2-1778  ( 1778) [007] d..2 14594.342544: sched_switch: prev_comm=kworker/u17:2 prev_pid=1778 prev_prio=100 prev_state=S ==> next_comm=kworker/u16:2 next_pid=27544 next_prio=120
+           <...>-1773  (-----) [000] ...1 14594.342575: tracing_mark_write: B|625|requestNextVsync
+           <...>-1773  (-----) [000] ...1 14594.342579: tracing_mark_write: B|625|resetIdleTimer
+           <...>-27544 (-----) [007] d..2 14594.342589: sched_switch: prev_comm=kworker/u16:2 prev_pid=27544 prev_prio=120 prev_state=S ==> next_comm=swapper/7 next_pid=0 next_prio=120
+           <...>-656   (-----) [002] d.h3 14594.342604: sched_blocked_reason: pid=1233 iowait=0 caller=geni_i2c_xfer+0x4d8/0x1398
+           <...>-1803  (-----) [001] d..2 14594.342605: sched_switch: prev_comm=ndroid.systemui prev_pid=1803 prev_prio=120 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120
+           <...>-625   (-----) [003] ...1 14594.342632: tracing_mark_write: B|625|handleMessageInvalidate
+           <...>-625   (-----) [003] ...1 14594.342634: tracing_mark_write: B|625|handlePageFlip
+           <...>-2738  (-----) [007] ...1 14594.342641: tracing_mark_write: B|2007|notifyFramePending
+           <...>-658   (-----) [002] d..2 14594.342653: sched_switch: prev_comm=DispSync prev_pid=658 prev_prio=97 prev_state=S ==> next_comm=Binder:625_1 next_pid=656 next_prio=120
+           <...>-656   (-----) [002] ...1 14594.342656: tracing_mark_write: B|625|requestNextVsync
+           <...>-2738  (-----) [007] d..2 14594.342658: sched_switch: prev_comm=RenderThread prev_pid=2738 prev_prio=110 prev_state=S ==> next_comm=swapper/7 next_pid=0 next_prio=120
+           <...>-656   (-----) [002] ...1 14594.342660: tracing_mark_write: B|625|resetIdleTimer
+           <...>-660   (-----) [005] d..2 14594.342663: sched_switch: prev_comm=app prev_pid=660 prev_prio=97 prev_state=S ==> next_comm=swapper/5 next_pid=0 next_prio=120
+           <...>-625   (-----) [003] ...1 14594.342665: tracing_mark_write: B|625|latchBuffer
+           <...>-625   (-----) [003] ...1 14594.342673: tracing_mark_write: B|625|query
+           <...>-625   (-----) [003] ...1 14594.342682: tracing_mark_write: B|625|updateTexImage
+           <...>-625   (-----) [003] ...1 14594.342693: tracing_mark_write: B|625|acquireBuffer
+           <...>-625   (-----) [003] ...1 14594.342703: tracing_mark_write: B|625|com.google.android.apps.nexuslauncher/com.google.android.apps.nexuslauncher.NexusLauncherActivity#1: 1
+           <...>-660   (-----) [005] d..2 14594.342709: sched_switch: prev_comm=app prev_pid=660 prev_prio=97 prev_state=S ==> next_comm=swapper/5 next_pid=0 next_prio=120
+           <...>-2007  (-----) [006] ...1 14594.342733: tracing_mark_write: B|2007|traversal
+           <...>-2007  (-----) [006] ...1 14594.342776: tracing_mark_write: B|2007|draw
+           <...>-2007  (-----) [006] ...1 14594.342791: tracing_mark_write: B|2007|Record View#draw()
+           <...>-625   (-----) [003] ...1 14594.342849: tracing_mark_write: B|625|updateInputFlinger
+           <...>-2007  (-----) [006] d..2 14594.342903: sched_switch: prev_comm=s.nexuslauncher prev_pid=2007 prev_prio=110 prev_state=S ==> next_comm=kworker/6:2H next_pid=24261 next_prio=100
+           <...>-2738  (-----) [007] ...1 14594.342910: tracing_mark_write: B|2007|DrawFrame
+           <...>-2738  (-----) [007] d..2 14594.342917: sched_switch: prev_comm=RenderThread prev_pid=2738 prev_prio=110 prev_state=R+ ==> next_comm=mmc-cmdqd/0 next_pid=440 next_prio=98
+           <...>-24261 (-----) [006] d..2 14594.342918: sched_switch: prev_comm=kworker/6:2H prev_pid=24261 prev_prio=100 prev_state=S ==> next_comm=.android.dialer next_pid=14607 next_prio=110
+           <...>-440   (-----) [007] d..2 14594.342926: sched_switch: prev_comm=mmc-cmdqd/0 prev_pid=440 prev_prio=98 prev_state=D ==> next_comm=RenderThread next_pid=2738 next_prio=110
+           <...>-2738  (-----) [007] ...1 14594.342927: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [007] ...2 14594.342959: binder_set_priority: proc=625 thread=656 old=120 => new=110 desired=110
+           <...>-2738  (-----) [007] d..2 14594.342975: sched_switch: prev_comm=RenderThread prev_pid=2738 prev_prio=110 prev_state=R+ ==> next_comm=Binder:625_1 next_pid=656 next_prio=110
+           <...>-656   (-----) [007] ...1 14594.343021: tracing_mark_write: B|625|query
+           <...>-656   (-----) [007] .... 14594.343033: binder_set_priority: proc=625 thread=656 old=110 => new=120 desired=120
+           <...>-2738  (-----) [007] ...1 14594.343070: tracing_mark_write: B|2007|query
+           <...>-1233  (-----) [004] d..2 14594.343074: sched_switch: prev_comm=sound trigger c prev_pid=1233 prev_prio=120 prev_state=R+ ==> next_comm=irq/144-1436400 next_pid=2522 next_prio=49
+           <...>-2738  (-----) [007] ...2 14594.343078: binder_set_priority: proc=625 thread=656 old=120 => new=110 desired=110
+           <...>-625   (-----) [003] ...1 14594.343084: tracing_mark_write: B|625|onMessageReceived
+           <...>-625   (-----) [003] ...1 14594.343087: tracing_mark_write: B|625|handleMessageRefresh
+           <...>-625   (-----) [003] ...1 14594.343090: tracing_mark_write: B|625|preComposition
+           <...>-2738  (-----) [007] d..2 14594.343090: sched_switch: prev_comm=RenderThread prev_pid=2738 prev_prio=110 prev_state=R+ ==> next_comm=Binder:625_1 next_pid=656 next_prio=110
+           <...>-625   (-----) [003] ...1 14594.343122: tracing_mark_write: B|625|rebuildLayerStacks
+           <...>-625   (-----) [003] ...1 14594.343124: tracing_mark_write: B|625|rebuildLayerStacks VR Dirty
+           <...>-89    (-----) [007] d..2 14594.343126: sched_switch: prev_comm=lpass_smem_glin prev_pid=89 prev_prio=98 prev_state=S ==> next_comm=Binder:625_1 next_pid=656 next_prio=110
+           <...>-625   (-----) [003] ...1 14594.343129: tracing_mark_write: B|625|computeVisibleRegions
+           <...>-656   (-----) [007] ...1 14594.343136: tracing_mark_write: B|625|query
+           <...>-14607 (-----) [006] ...2 14594.343141: binder_set_priority: proc=1368 thread=3253 old=120 => new=110 desired=110
+                      <...>-2965  (-----) [001] .... 14596.746610: mm_filemap_add_to_page_cache: dev 253:6 ino a359 page=000000002ae8fcff pfn=1522884 ofs=188416
+          <idle>-0     (-----) [002] d..2 14596.746619: sched_switch: prev_comm=swapper/2 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=mmc-cmdqd/0 next_pid=440 next_prio=98
+           <...>-2965  (-----) [001] .... 14596.746629: mm_filemap_add_to_page_cache: dev 253:6 ino a359 page=00000000679ee1ec pfn=1299913 ofs=192512
+           <...>-2965  (-----) [001] .... 14596.746664: mm_filemap_add_to_page_cache: dev 253:6 ino a359 page=0000000006cd2fb7 pfn=1296251 ofs=196608
+           <...>-2965  (-----) [001] .... 14596.746677: mm_filemap_add_to_page_cache: dev 253:6 ino a359 page=00000000af82f3d6 pfn=1419330 ofs=200704
+           <...>-2965  (-----) [001] .... 14596.746693: mm_filemap_add_to_page_cache: dev 253:6 ino a359 page=000000002840f054 pfn=1304928 ofs=204800
+           <...>-2965  (-----) [001] .... 14596.746706: mm_filemap_add_to_page_cache: dev 253:6 ino a359 page=000000004a59da17 pfn=1288069 ofs=208896
+           <...>-2965  (-----) [001] .... 14596.746717: mm_filemap_add_to_page_cache: dev 253:6 ino a359 page=0000000023a80dca pfn=1419686 ofs=212992
+           <...>-2965  (-----) [001] .... 14596.746730: mm_filemap_add_to_page_cache: dev 253:6 ino a359 page=000000001cf89eab pfn=1315372 ofs=217088
+           <...>-2965  (-----) [001] .... 14596.746743: mm_filemap_add_to_page_cache: dev 253:6 ino a359 page=000000005b4c6cb6 pfn=1380698 ofs=221184
+           <...>-2965  (-----) [001] .... 14596.746760: mm_filemap_add_to_page_cache: dev 253:6 ino a359 page=00000000f8304ae7 pfn=1206753 ofs=225280
+           <...>-2965  (-----) [001] .... 14596.746773: mm_filemap_add_to_page_cache: dev 253:6 ino a359 page=00000000cb912305 pfn=1325465 ofs=229376
+           <...>-2965  (-----) [001] .... 14596.746785: mm_filemap_add_to_page_cache: dev 253:6 ino a359 page=00000000f16f3774 pfn=1408056 ofs=233472
+           <...>-2965  (-----) [001] .... 14596.746801: mm_filemap_add_to_page_cache: dev 253:6 ino a359 page=0000000056d4c926 pfn=1418352 ofs=237568
+           <...>-2965  (-----) [001] .... 14596.746815: mm_filemap_add_to_page_cache: dev 253:6 ino a359 page=00000000f3eeb42c pfn=1320957 ofs=241664
+           <...>-440   (-----) [002] d..2 14596.746916: sched_switch: prev_comm=mmc-cmdqd/0 prev_pid=440 prev_prio=98 prev_state=D ==> next_comm=swapper/2 next_pid=0 next_prio=120
+
+           <...>-656   (-----) [007] .... 14594.343145: binder_set_priority: proc=625 thread=656 old=110 => new=120 desired=120
+           <...>-14607 (-----) [006] d..2 14594.343164: sched_switch: prev_comm=.android.dialer prev_pid=14607 prev_prio=110 prev_state=S ==> next_comm=swapper/6 next_pid=0 next_prio=120
+           <...>-5281  (-----) [002] d..2 14594.343177: sched_switch: prev_comm=writer prev_pid=5281 prev_prio=96 prev_state=S ==> next_comm=RenderThread next_pid=2738 next_prio=110
+ irq/144-1436400-2522  ( 2522) [004] d..2 14594.343223: sched_switch: prev_comm=irq/144-1436400 prev_pid=2522 prev_prio=49 prev_state=D ==> next_comm=sound trigger c next_pid=1233 next_prio=120
+           <...>-88    (-----) [006] d..2 14594.343240: sched_switch: prev_comm=smem_native_lpa prev_pid=88 prev_prio=98 prev_state=S ==> next_comm=swapper/6 next_pid=0 next_prio=120
+           <...>-1238  (-----) [001] d..2 14594.343243: sched_switch: prev_comm=FastMixer prev_pid=1238 prev_prio=96 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120
+           <...>-2738  (-----) [002] ...1 14594.343244: tracing_mark_write: B|2007|syncFrameState
+           <...>-2738  (-----) [002] ...1 14594.343293: tracing_mark_write: B|2007|prepareTree
+           <...>-1695  (-----) [001] d..2 14594.343318: sched_switch: prev_comm=InputDispatcher prev_pid=1695 prev_prio=112 prev_state=R+ ==> next_comm=FastMixer next_pid=1238 next_prio=96
+           <...>-5281  (-----) [005] d..2 14594.343322: sched_switch: prev_comm=writer prev_pid=5281 prev_prio=96 prev_state=S ==> next_comm=Binder:1368_14 next_pid=3253 next_prio=110
+           <...>-1238  (-----) [001] d..2 14594.343442: sched_switch: prev_comm=FastMixer prev_pid=1238 prev_prio=96 prev_state=S ==> next_comm=InputDispatcher next_pid=1695 next_prio=112
+           <...>-1695  (-----) [001] d..2 14594.343467: sched_switch: prev_comm=InputDispatcher prev_pid=1695 prev_prio=112 prev_state=S ==> next_comm=swapper/1 next_pid=0 next_prio=120
+           <...>-5281  (-----) [000] d..2 14594.343484: sched_switch: prev_comm=writer prev_pid=5281 prev_prio=96 prev_state=S ==> next_comm=swapper/0 next_pid=0 next_prio=120
+           <...>-625   (-----) [003] ...1 14594.343519: tracing_mark_write: B|625|calculateWorkingSet
+           <...>-2738  (-----) [002] ...1 14594.343568: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [002] ...1 14594.343577: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [002] ...1 14594.343586: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [002] ...1 14594.343591: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [002] ...1 14594.343597: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [002] ...1 14594.343602: tracing_mark_write: B|2007|query
+           <...>-2738  (-----) [002] ...1 14594.343609: tracing_mark_write: B|2007|dequeueBuffer
+           <...>-2007  (-----) [006] d..2 14594.343612: sched_switch: prev_comm=s.nexuslauncher prev_pid=2007 prev_prio=110 prev_state=S ==> next_comm=swapper/6 next_pid=0 next_prio=120
+           <...>-2738  (-----) [002] ...2 14594.343633: binder_set_priority: proc=625 thread=656 old=120 => new=110 desired=110
+           <...>-2738  (-----) [002] d..2 14594.343683: sched_switch: prev_comm=RenderThread prev_pid=2738 prev_prio=110 prev_state=R+ ==> next_comm=Binder:625_1 next_pid=656 next_prio=110
+           <...>-625   (-----) [003] ...1 14594.343704: tracing_mark_write: B|625|prepare
+           <...>-656   (-----) [002] ...1 14594.343707: tracing_mark_write: B|625|dequeueBuffer
+           <...>-625   (-----) [004] ...1 14594.812869: tracing_mark_write: B|625|com.google.android.dialer/com.google.android.dialer.extensions.GoogleDialtactsActivity#0: 2
+           <...>-2048  (-----) [000] d..2 14594.812895: sched_switch: prev_comm=RenderThread prev_pid=2048 prev_prio=120 prev_state=R+ ==> next_comm=Binder:625_3 next_pid=1431 next_prio=120
+           <...>-1431  (-----) [000] ...1 14594.812911: tracing_mark_write: B|625|query
+           <...>-625   (-----) [004] ...1 14594.812914: tracing_mark_write: B|625|latchBuffer
+           <...>-625   (-----) [004] ...1 14594.812919: tracing_mark_write: B|625|query
+           <...>-625   (-----) [004] ...1 14594.812925: tracing_mark_write: B|625|updateTexImage
+           <...>-625   (-----) [004] ...1 14594.812928: tracing_mark_write: B|625|acquireBuffer
+           <...>-625   (-----) [004] ...1 14594.812934: tracing_mark_write: B|625|StatusBar#0: 1
+           <...>-2048  (-----) [000] ...1 14594.812962: tracing_mark_write: B|1803|syncFrameState
+           <...>-656   (-----) [002] ...1 14594.813044: tracing_mark_write: B|625|setTransactionState
+           <...>-14607 (-----) [007] ...2 14594.813083: binder_set_priority: proc=10691 thread=18733 old=120 => new=110 desired=110
+           <...>-14607 (-----) [007] d..2 14594.813114: sched_switch: prev_comm=.android.dialer prev_pid=14607 prev_prio=110 prev_state=S ==> next_comm=kworker/7:1 next_pid=7092 next_prio=120
+           <...>-14655 (-----) [006] d..2 14594.813128: sched_switch: prev_comm=DialerExecutors prev_pid=14655 prev_prio=130 prev_state=R ==> next_comm=lpass_smem_glin next_pid=89 next_prio=98
+           <...>-89    (-----) [006] d..2 14594.813163: sched_switch: prev_comm=lpass_smem_glin prev_pid=89 prev_prio=98 prev_state=S ==> next_comm=DialerExecutors next_pid=14655 next_prio=130
+           <...>-656   (-----) [002] ...1 14594.813218: tracing_mark_write: B|625|requestNextVsync
+           <...>-656   (-----) [002] ...1 14594.813222: tracing_mark_write: B|625|resetIdleTimer
+     kworker/7:1-7092  ( 7092) [007] d..2 14594.813239: sched_switch: prev_comm=kworker/7:1 prev_pid=7092 prev_prio=120 prev_state=R+ ==> next_comm=smem_native_lpa next_pid=88 next_prio=98
+           <...>-5281  (-----) [001] d..2 14594.813245: sched_switch: prev_comm=writer prev_pid=5281 prev_prio=96 prev_state=S ==> next_comm=Binder:10691_B next_pid=18733 next_prio=110
+           <...>-88    (-----) [007] d..2 14594.813248: sched_switch: prev_comm=smem_native_lpa prev_pid=88 prev_prio=98 prev_state=R ==> next_comm=kgsl_worker_thr next_pid=259 next_prio=97
+           <...>-2048  (-----) [000] d..2 14594.813249: sched_switch: prev_comm=RenderThread prev_pid=2048 prev_prio=120 prev_state=R+ ==> next_comm=FastMixer next_pid=1238 next_prio=96
+           <...>-14655 (-----) [006] d..2 14594.813263: sched_switch: prev_comm=DialerExecutors prev_pid=14655 prev_prio=130 prev_state=R+ ==> next_comm=smem_native_lpa next_pid=88 next_prio=98
+           <...>-661   (-----) [002] d..2 14594.813265: sched_switch: prev_comm=sf prev_pid=661 prev_prio=97 prev_state=S ==> next_comm=Binder:625_1 next_pid=656 next_prio=116
+           <...>-259   (-----) [007] d..2 14594.813265: sched_switch: prev_comm=kgsl_worker_thr prev_pid=259 prev_prio=97 prev_state=S ==> next_comm=kworker/7:1 next_pid=7092 next_prio=120
+     kworker/7:1-7092  ( 7092) [007] d..2 14594.813271: sched_switch: prev_comm=kworker/7:1 prev_pid=7092 prev_prio=120 prev_state=S ==> next_comm=system next_pid=108 next_prio=120
+           <...>-108   (-----) [007] .... 14594.813275: ion_heap_shrink: heap_name=system, len=9469952, total_allocated=189620224
+           <...>-88    (-----) [006] d..2 14594.813294: sched_switch: prev_comm=smem_native_lpa prev_pid=88 prev_prio=98 prev_state=S ==> next_comm=DialerExecutors next_pid=14655 next_prio=130
+           <...>-625   (-----) [004] ...1 14594.813310: tracing_mark_write: B|625|updateInputFlinger
+           <...>-1238  (-----) [000] d..2 14594.813312: sched_switch: prev_comm=FastMixer prev_pid=1238 prev_prio=96 prev_state=S ==> next_comm=RenderThread next_pid=2048 next_prio=120
+           <...>-661   (-----) [002] d..2 14594.813317: sched_switch: prev_comm=sf prev_pid=661 prev_prio=97 prev_state=S ==> next_comm=Binder:625_1 next_pid=656 next_prio=116
+           <...>-14640 (-----) [005] d..2 14594.813319: sched_switch: prev_comm=DialerExecutors prev_pid=14640 prev_prio=130 prev_state=R ==> next_comm=DispSync next_pid=658 next_prio=97
+           <...>-656   (-----) [002] ...1 14594.813336: tracing_mark_write: B|625|~GraphicBuffer
+           <...>-658   (-----) [005] d..2 14594.813345: sched_switch: prev_comm=DispSync prev_pid=658 prev_prio=97 prev_state=S ==> next_comm=DialerExecutors next_pid=14640 next_prio=130
+           <...>-656   (-----) [002] ...1 14594.813345: tracing_mark_write: B|625|~GraphicBuffer
+           <...>-656   (-----) [002] ...1 14594.813353: tracing_mark_write: B|625|~GraphicBuffer
+           <...>-2048  (-----) [000] d..2 14594.813358: sched_switch: prev_comm=RenderThread prev_pid=2048 prev_prio=120 prev_state=R+ ==> next_comm=FastMixer next_pid=1238 next_prio=96
+           <...>-656   (-----) [002] ...1 14594.813364: tracing_mark_write: B|625|~GraphicBuffer
+           <...>-5281  (-----) [001] d..2 14594.813369: sched_switch: prev_comm=writer prev_pid=5281 prev_prio=96 prev_state=S ==> next_comm=Binder:10691_B next_pid=18733 next_prio=110
+           <...>-656   (-----) [002] ...1 14594.813372: tracing_mark_write: B|625|~GraphicBuffer
+           <...>-656   (-----) [002] ...1 14594.813380: tracing_mark_write: B|625|~GraphicBuffer
+           <...>-656   (-----) [002] ...1 14594.813391: tracing_mark_write: B|625|~GraphicBuffer
+           <...>-656   (-----) [002] ...1 14594.813398: tracing_mark_write: B|625|~GraphicBuffer
+           <...>-656   (-----) [002] ...1 14594.813408: tracing_mark_write: B|625|~GraphicBuffer
+           <...>-656   (-----) [002] ...1 14594.813416: tracing_mark_write: B|625|~GraphicBuffer
+           <...>-656   (-----) [002] ...1 14594.813424: tracing_mark_write: B|625|~GraphicBuffer
+           <...>-656   (-----) [002] ...1 14594.813432: tracing_mark_write: B|625|~GraphicBuffer
+           <...>-656   (-----) [002] .n.1 14594.813443: tracing_mark_write: B|625|~GraphicBuffer
+           <...>-1238  (-----) [000] d..2 14594.813464: sched_switch: prev_comm=FastMixer prev_pid=1238 prev_prio=96 prev_state=S ==> next_comm=RenderThread next_pid=2048 next_prio=120
+           <...>-5281  (-----) [002] d..2 14594.813525: sched_switch: prev_comm=writer prev_pid=5281 prev_prio=96 prev_state=S ==> next_comm=Binder:625_1 next_pid=656 next_prio=116
+           <...>-656   (-----) [002] ...1 14594.813544: tracing_mark_write: B|625|~GraphicBuffer
+           <...>-656   (-----) [002] ...1 14594.813557: tracing_mark_write: B|625|~GraphicBuffer
+           <...>-2048  (-----) [000] d..2 14594.813594: sched_switch: prev_comm=RenderThread prev_pid=2048 prev_prio=120 prev_state=R+ ==> next_comm=Binder:1368_15 next_pid=3359 next_prio=120
+           <...>-18733 (-----) [001] ...2 14594.813635: binder_set_priority: proc=1368 thread=3514 old=120 => new=110 desired=110
+           <...>-656   (-----) [002] .... 14594.813637: binder_set_priority: proc=625 thread=656 old=116 => new=120 desired=120
+           <...>-108   (-----) [007] d..2 14594.813646: sched_switch: prev_comm=system prev_pid=108 prev_prio=120 prev_state=R+ ==> next_comm=android.anim next_pid=1398 next_prio=116
+           <...>-625   (-----) [004] ...1 14594.813646: tracing_mark_write: B|625|onMessageReceived
+           <...>-625   (-----) [004] ...1 14594.813649: tracing_mark_write: B|625|handleMessageRefresh
+           <...>-625   (-----) [004] ...1 14594.813651: tracing_mark_write: B|625|preComposition
+           <...>-625   (-----) [004] ...1 14594.813693: tracing_mark_write: B|625|rebuildLayerStacks
+           <...>-625   (-----) [004] ...1 14594.813696: tracing_mark_write: B|625|rebuildLayerStacks VR Dirty
+           <...>-625   (-----) [004] ...1 14594.813701: tracing_mark_write: B|625|computeVisibleRegions
+           <...>-1398  (-----) [007] d..2 14594.813718: sched_switch: prev_comm=android.anim prev_pid=1398 prev_prio=116 prev_state=S ==> next_comm=system next_pid=108 next_prio=120
+           <...>-108   (-----) [007] d..2 14594.813739: sched_switch: prev_comm=system prev_pid=108 prev_prio=120 prev_state=R+ ==> next_comm=android.anim next_pid=1398 next_prio=116
+           <...>-1695  (-----) [002] d..2 14594.813970: sched_switch: prev_comm=InputDispatcher prev_pid=1695 prev_prio=112 prev_state=S ==> next_comm=system next_pid=108 next_prio=120
+           <...>-1398  (-----) [007] ...1 14594.814029: tracing_mark_write: B|1368|wmLayout
+           <...>-1398  (-----) [007] ...1 14594.814033: tracing_mark_write: B|1368|performSurfacePlacement
+           <...>-1398  (-----) [007] ...1 14594.814040: tracing_mark_write: B|1368|applySurfaceChanges
+           <...>-1398  (-----) [007] ...1 14594.814043: tracing_mark_write: B|1368|openSurfaceTransaction
+           <...>-1398  (-----) [007] ...1 14594.814063: tracing_mark_write: B|1368|performLayout
+           <...>-625   (-----) [004] ...1 14594.814119: tracing_mark_write: B|625|calculateWorkingSet
+           <...>-1398  (-----) [007] ...1 14594.814241: tracing_mark_write: B|1368|layoutInputConsumer
+           <...>-2048  (-----) [000] ...1 14594.814260: tracing_mark_write: B|1803|prepareTree
+           <...>-1398  (-----) [007] ...1 14594.814263: tracing_mark_write: B|1368|applyPostLayoutPolicy
+           <...>-2048  (-----) [000] d..2 14594.814408: sched_switch: prev_comm=RenderThread prev_pid=2048 prev_prio=120 prev_state=R ==> next_comm=Binder:1368_15 next_pid=3359 next_prio=120
+           <...>-625   (-----) [004] ...1 14594.814411: tracing_mark_write: B|625|prepare
+           <...>-625   (-----) [004] ...1 14594.814428: tracing_mark_write: B|625|HIDL::IComposerClient::executeCommands_2_2::client
+           <...>-2048  (-----) [000] d..2 14594.814533: sched_switch: prev_comm=RenderThread prev_pid=2048 prev_prio=120 prev_state=R+ ==> next_comm=ndroid.systemui next_pid=1803 next_prio=120
+           <...>-1803  (-----) [000] d..2 14594.814558: sched_switch: prev_comm=ndroid.systemui prev_pid=1803 prev_prio=120 prev_state=S ==> next_comm=RenderThread next_pid=2048 next_prio=120
+           <...>-2048  (-----) [000] d..2 14594.814572: sched_switch: prev_comm=RenderThread prev_pid=2048 prev_prio=120 prev_state=R+ ==> next_comm=ndroid.systemui next_pid=1803 next_prio=120
+           <...>-625   (-----) [004] ...2 14594.814589: binder_set_priority: proc=627 thread=627 old=97 => new=98 desired=98
+           <...>-108   (-----) [002] d..2 14594.814650: sched_switch: prev_comm=system prev_pid=108 prev_prio=120 prev_state=R+ ==> next_comm=composer@2.2-se next_pid=627 next_prio=98
+           <...>-625   (-----) [004] d..2 14594.814664: sched_switch: prev_comm=surfaceflinger prev_pid=625 prev_prio=98 prev_state=S ==> next_comm=ashmemd next_pid=854 next_prio=129
+           <...>-1398  (-----) [007] ...1 14594.814723: tracing_mark_write: B|1368|applyWindowSurfaceChanges
+           <...>-854   (-----) [004] .... 14594.814746: binder_set_priority: proc=854 thread=854 old=129 => new=120 desired=120
+           <...>-854   (-----) [004] d..2 14594.814757: sched_switch: prev_comm=ashmemd prev_pid=854 prev_prio=120 prev_state=R+ ==> next_comm=highpool[0] next_pid=3493 next_prio=129
+           <...>-1803  (-----) [000] d..2 14594.814763: sched_switch: prev_comm=ndroid.systemui prev_pid=1803 prev_prio=120 prev_state=S ==> next_comm=RenderThread next_pid=2048 next_prio=120
+           <...>-18733 (-----) [001] d..1 14594.814819: mm_filemap_delete_from_page_cache: dev 0:1 ino 3ce5e7 page=0000000083f10c7a pfn=1298474 ofs=0
+           <...>-2048  (-----) [000] ...1 14594.814842: tracing_mark_write: B|1803|dequeueBuffer
+           <...>-1398  (-----) [007] ...1 14594.814850: tracing_mark_write: F|1368|launching: com.google.android.dialer|0
+           <...>-1398  (-----) [007] ...1 14594.814855: tracing_mark_write: B|1368|MetricsLogger:launchObserverNotifyActivityLaunchFinished
+           <...>-1398  (-----) [007] ...1 14594.814857: tracing_mark_write: B|1368|MetricsLogger:convertActivityRecordToProto
+           <...>-2048  (-----) [000] d..2 14594.814905: sched_switch: prev_comm=RenderThread prev_pid=2048 prev_prio=120 prev_state=R+ ==> next_comm=Binder:625_1 next_pid=656 next_prio=120
+           <...>-1410  (-----) [006] .... 14592.997816: mm_filemap_add_to_page_cache: dev 253:6 ino b785 page=00000000615a8f24 pfn=1134764 ofs=0
+           <...>-1410  (-----) [006] .... 14592.997831: mm_filemap_add_to_page_cache: dev 253:6 ino b785 page=000000008768a58f pfn=1134751 ofs=4096
+
+           <...>-18733 (-----) [001] .... 14594.814914: binder_set_priority: proc=10691 thread=18733 old=110 => new=120 desired=120
+           <...>-14655 (-----) [006] d..2 14594.814932: sched_switch: prev_comm=DialerExecutors prev_pid=14655 prev_prio=130 prev_state=R ==> next_comm=.android.dialer next_pid=14607 next_prio=110
+           <...>-656   (-----) [000] ...1 14594.814948: tracing_mark_write: B|625|dequeueBuffer
+           <...>-3514  (-----) [001] .... 14594.814954: binder_set_priority: proc=1368 thread=3514 old=110 => new=120 desired=120
+           <...>-656   (-----) [000] ...1 14594.814963: tracing_mark_write: B|625|NavigationBar0#0: 2
+           <...>-14607 (-----) [006] ...2 14594.815022: binder_set_priority: proc=1368 thread=3514 old=120 => new=110 desired=110
+           <...>-1398  (-----) [007] ...1 14594.815039: tracing_mark_write: B|1368|prepareSurfaces
+           <...>-14607 (-----) [006] d..2 14594.815041: sched_switch: prev_comm=.android.dialer prev_pid=14607 prev_prio=110 prev_state=S ==> next_comm=DialerExecutors next_pid=14655 next_prio=130
+           <...>-3493  (-----) [004] d..2 14594.815057: sched_switch: prev_comm=highpool[0] prev_pid=3493 prev_prio=129 prev_state=R ==> next_comm=Binder:1368_18 next_pid=3514 next_prio=110
+           <...>-2048  (-----) [000] ...1 14594.815088: tracing_mark_write: B|1803|HWC release fence 45750 has signaled
+           <...>-2048  (-----) [000] ...1 14594.815119: tracing_mark_write: B|1803|eglBeginFrame
+           <...>-14655 (-----) [006] d..2 14594.815190: sched_switch: prev_comm=DialerExecutors prev_pid=14655 prev_prio=130 prev_state=R ==> next_comm=crtc_commit:97 next_pid=301 next_prio=83
+           <...>-3514  (-----) [004] .... 14594.815193: binder_set_priority: proc=1368 thread=3514 old=110 => new=120 desired=120
+           <...>-1398  (-----) [007] ...1 14594.815322: tracing_mark_write: B|1368|closeSurfaceTransaction
+           <...>-3493  (-----) [004] .... 14594.815353: mm_filemap_add_to_page_cache: dev 253:6 ino 113b page=0000000069e2b98a pfn=628464 ofs=2723840
+           <...>-1398  (-----) [007] ...2 14594.815393: binder_set_priority: proc=625 thread=656 old=120 => new=116 desired=116
+       rcu_sched-8     (    8) [007] d..2 14594.815449: sched_switch: prev_comm=rcu_sched prev_pid=8 prev_prio=120 prev_state=S ==> next_comm=Binder:625_1 next_pid=656 next_prio=116
diff --git a/startop/scripts/trace_analyzer/trace_analyzer b/startop/scripts/trace_analyzer/trace_analyzer
new file mode 100755
index 0000000..8c03964
--- /dev/null
+++ b/startop/scripts/trace_analyzer/trace_analyzer
@@ -0,0 +1,42 @@
+#!/bin/bash
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+DIR="$( cd "$(dirname "$0")" ; pwd -P )"
+
+if [[ "$#" -lt 2 ]]; then
+  echo "Usage: $0 <filename.trace> <sqlite-filename.db>" >&2
+  exit 1
+fi
+
+TRACE_FILENAME="$1"
+SQLITE_FILENAME="$2"
+
+#echo "Trace filename: $TRACE_FILENAME"
+#echo "SQLite filename: $SQLITE_FILENAME"
+
+if ! [[ -f "$TRACE_FILENAME" ]]; then
+  echo "Error: Trace '$TRACE_FILENAME' does not exist." >&2
+  exit 1
+fi
+
+if ! "$DIR/trace_analyzer.py" "$SQLITE_FILENAME" "$TRACE_FILENAME" > /dev/null; then
+  echo "Fatal: trace_analyzer.py failed, aborting." >&2
+  exit 1
+fi
+
+if ! "$DIR/run-sql-queries" "$SQLITE_FILENAME"; then
+  echo "Fatal: Failed to run sql queries, aborting." >&2
+  exit 1
+fi
diff --git a/startop/scripts/trace_analyzer/trace_analyzer.py b/startop/scripts/trace_analyzer/trace_analyzer.py
new file mode 100755
index 0000000..62ae018
--- /dev/null
+++ b/startop/scripts/trace_analyzer/trace_analyzer.py
@@ -0,0 +1,51 @@
+#!/usr/bin/python3
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import re
+import sys
+import argparse
+
+from lib.trace2db import Trace2Db
+
+# This script requires 'sqlalchemy' to access the sqlite3 database.
+#
+# $> sudo apt-get install python3-pip
+# $> pip3 install --user sqlalchemy
+#
+
+def main(argv):
+  parser = argparse.ArgumentParser(description='Convert ftrace/systrace file into sqlite3 db.')
+  parser.add_argument('db_filename', metavar='sql_filename.db', type=str,
+                      help='path to sqlite3 db filename')
+  parser.add_argument('trace_filename', metavar='systrace.ftrace', type=str,
+                      help='path to ftrace/systrace filename')
+  parser.add_argument('--limit', type=int, help='limit the number of entries parsed [for debugging]')
+
+  args = parser.parse_args()
+
+  db_filename = args.db_filename
+  trace_filename = args.trace_filename
+
+  trace2db = Trace2Db(db_filename)
+  print("SQL Alchemy db initialized")
+
+  # parse 'raw_ftrace_entries' table
+  count = trace2db.parse_file_into_db(trace_filename, limit=args.limit)
+  print("Count was ", count)
+
+  return 0
+
+if __name__ == '__main__':
+  main(sys.argv)
diff --git a/startop/scripts/trace_analyzer/trace_analyzer_recursive b/startop/scripts/trace_analyzer/trace_analyzer_recursive
new file mode 100755
index 0000000..4d9ee0e
--- /dev/null
+++ b/startop/scripts/trace_analyzer/trace_analyzer_recursive
@@ -0,0 +1,78 @@
+#!/bin/bash
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+DIR="$( cd "$(dirname "$0")" ; pwd -P )"
+
+if [[ "$#" -lt 3 ]]; then
+  echo "Usage: $0 <trace-dir> <db-dir> <output.csv>" >&2
+  exit 1
+fi
+
+simulate="n"
+
+TRACE_DIRNAME="$1"
+SQLITE_DIRNAME="$2"
+OUTPUT_FILENAME="$3"
+
+echo "Trace filename: $TRACE_DIRNAME"
+echo "SQLite filename: $SQLITE_DIRNAME"
+
+if ! [[ -d "$TRACE_DIRNAME" ]]; then
+  echo "Error: Trace '$TRACE_DIRNAME' does not exist." >&2
+  exit 1
+fi
+
+process_trace_file() {
+  local trace_filename="$1"
+  local db_dirname="$2"
+  local output_file="$3"
+
+  local db_filename="$db_dirname/$(basename "$trace_filename").db"
+
+  if [[ $simulate == y ]]; then
+    echo "$DIR/trace_analyzer.py" "$db_filename" "$trace_filename" "> /dev/null"
+  else
+    if ! "$DIR/trace_analyzer.py" "$db_filename" "$trace_filename" > /dev/null; then
+      echo "Fatal: trace_analyzer.py failed, aborting." >&2
+      return 1
+    fi
+  fi
+
+  if [[ $simulate == y ]]; then
+    echo "$DIR/run-sql-queries" "$db_filename" ">> '$output_file'"
+  else
+    # append name of trace to CSV, so we can see where data came from
+    echo "; $trace_filename" >> "$output_file"
+    if ! "$DIR/run-sql-queries" "$db_filename" >> "$output_file"; then
+      echo "Fatal: Failed to run sql queries, aborting." >&2
+      return 1
+    fi
+  fi
+
+  return 0
+}
+
+find "$TRACE_DIRNAME" -type f -name '*.trace' -print0 |
+while IFS= read -r -d '' file; do
+  if [[ $file == *#*.trace && $file != *#1.trace ]]; then
+    echo "Skip $file"
+    continue
+  fi
+
+  printf '%s\n' "$file"
+  process_trace_file "$file" "$SQLITE_DIRNAME" "$OUTPUT_FILENAME"
+done
+
+echo "Done"
diff --git a/startop/scripts/trace_analyzer/trace_analyzer_test.py b/startop/scripts/trace_analyzer/trace_analyzer_test.py
new file mode 100644
index 0000000..579529c
--- /dev/null
+++ b/startop/scripts/trace_analyzer/trace_analyzer_test.py
@@ -0,0 +1,66 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019, The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""
+Unit tests for trace_analyzer module.
+
+Install:
+  $> sudo apt-get install python3-pytest   ##  OR
+  $> pip install -U pytest
+See also https://docs.pytest.org/en/latest/getting-started.html
+
+Usage:
+  $> pytest trace_analyzer_test.py
+
+See also https://docs.pytest.org/en/latest/usage.html
+"""
+
+# global imports
+import os
+import sys
+
+DIR = os.path.abspath(os.path.dirname(__file__))
+
+sys.path.append(os.path.dirname(DIR))
+import lib.cmd_utils as cmd_utils
+
+def test_trace_analyzer(tmpdir):
+  # Setup
+  bin = os.path.join(DIR, 'trace_analyzer')
+  systrace = os.path.join(DIR, 'test_fixtures/common_systrace')
+  db_file = tmpdir.mkdir('trace_analyzer').join('test.db')
+
+  # Act
+  passed, output = cmd_utils.execute_arbitrary_command([bin, systrace,
+                                                        str(db_file)],
+                                                       timeout=300,
+                                                       shell=False,
+                                                       simulate=False)
+
+  # Assert
+  assert passed
+  assert output == """\
+'blocked_iowait_duration_ms',\
+'process_name',\
+'launching_duration_ms',\
+'launching_started_timestamp_ms',\
+'launching_finished_timestamp_ms'
+81.697999999960302375,\
+'com.google.android.dialer',\
+594.99400000095192808,\
+14594219.85600000061,\
+14594814.85000000149"""