Make profiler use getTimeInMicroSec().
Bug: 17797064
Change-Id: Ie992c9454edfc3bf93d5ea367c3a4427b513a205
diff --git a/native/jni/src/utils/profiler.h b/native/jni/src/utils/profiler.h
new file mode 100644
index 0000000..5f107fe
--- /dev/null
+++ b/native/jni/src/utils/profiler.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2014, 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.
+ */
+
+#ifndef LATINIME_PROFILER_H
+#define LATINIME_PROFILER_H
+
+#ifdef FLAG_DO_PROFILE
+
+#include "defines.h"
+
+#include <ctime>
+#include <unordered_map>
+
+namespace latinime {
+
+class Profiler final {
+ public:
+ Profiler(const clockid_t clockId)
+ : mClockId(clockId), mStartTime(getTimeInMicroSec()), mStartTimes(), mTimes(),
+ mCounters() {}
+
+ ~Profiler() {
+ const float totalTime =
+ static_cast<float>(getTimeInMicroSec() - mStartTime) / 1000.f;
+ AKLOGI("Total time is %6.3f ms.", totalTime);
+ for (const auto &time : mTimes) {
+ AKLOGI("(%d): Used %4.2f%%, %8.4f ms. Called %d times.", time.first,
+ time.second / totalTime * 100.0f, time.second, mCounters[time.first]);
+ }
+ }
+
+ void startTimer(const int id) {
+ mStartTimes[id] = getTimeInMicroSec();
+ }
+
+ void endTimer(const int id) {
+ mTimes[id] += static_cast<float>(getTimeInMicroSec() - mStartTimes[id]) / 1000.0f;
+ mCounters[id]++;
+ }
+
+ operator bool() const { return false; }
+
+ private:
+ DISALLOW_IMPLICIT_CONSTRUCTORS(Profiler);
+
+ const clockid_t mClockId;
+ int64_t mStartTime;
+ std::unordered_map<int, int64_t> mStartTimes;
+ std::unordered_map<int, float> mTimes;
+ std::unordered_map<int, int> mCounters;
+
+ int64_t getTimeInMicroSec() {
+ timespec time;
+ clock_gettime(mClockId, &time);
+ return static_cast<int64_t>(time.tv_sec) * 1000000
+ + static_cast<int64_t>(time.tv_nsec) / 1000;
+ }
+};
+} // namespace latinime
+
+#define PROF_INIT Profiler __LATINIME__PROFILER__(CLOCK_THREAD_CPUTIME_ID)
+#define PROF_TIMER_START(timer_id) __LATINIME__PROFILER__.startTimer(timer_id)
+#define PROF_TIMER_END(timer_id) __LATINIME__PROFILER__.endTimer(timer_id)
+
+#else // FLAG_DO_PROFILE
+
+#define PROF_INIT
+#define PROF_TIMER_START(timer_id)
+#define PROF_TIMER_END(timer_id)
+
+#endif // FLAG_DO_PROFILE
+
+#endif /* LATINIME_PROFILER_H */