commit 99b9d38e2227e62c282ddafc9327507a61e47953
author Siarhei Vishniakou <svv@google.com> Thu Apr 01 08:03:41 2021 +0000
committer Siarhei Vishniakou <svv@google.com> Tue May 18 07:48:33 2021 +0000
tree 6d6250f908b2cfa1fcf68ca60955c8cebd97993f
parent a04181fc9c3a4f6b290e3ccf0f6a6e9ab9a6c542

Use zetasketch for input statistics

Switch LatencyAggregator to use the actual zetasketch library. Report
the data to westworld via 2 atoms. 1 atom is for slow events, and 1 is
for latency sketches.

Estimating < 25 Kb per atom after few minutes of non-stop interaction with the screen.
Added a hard limit at 20 Kb

Dumped the data to a file on the device, and then read that data using
the full zetasketch implementation. Confirmed that the data looks OK.

Bug: 167947340
Test: adb shell dumpsys input and review the size of the resulting
sketches

Change-Id: I69b0f3753c86226886186d5f6edd779d2f9404e5

services/inputflinger/dispatcher/Android.bp

diff --git a/services/inputflinger/dispatcher/Android.bp b/services/inputflinger/dispatcher/Android.bp
index 6616795..1b3888b 100644
--- a/services/inputflinger/dispatcher/Android.bp
+++ b/services/inputflinger/dispatcher/Android.bp
@@ -57,7 +57,9 @@
         "libcrypto",
         "libcutils",
         "libinput",
+        "libkll",
         "liblog",
+        "libprotobuf-cpp-lite",
         "libstatslog",
         "libstatspull",
         "libstatssocket",