tree 2d2321ebff9e97d4f85099c16ec600fdd55433c2
parent 85bd1ec6d01b357a3fdc1fa50caee51ed5cbfa29
author Siarhei Vishniakou <svv@google.com> 1541735662 -0800
committer Siarhei Vishniakou <svv@google.com> 1548196828 -0800

Metrics for touch latency

Add some basic metrics for touch latency here.
Currently just measure the time from evdev to eventhub.
This will later become "hard interrupt" to eventhub, after we fix
b/119840121.

Bug: 111431676
Test: set reporting interval to 5 seconds instead of 5 minutes, then run
'statsd_testdrive 34' and touch the screen for a minute. Review the
results to ensure that times are reported as expected.
Change-Id: I6144aa0feab897a161f1ee058686dd0a790d17f1