| commit | bf3a626647d8813df8491b8c4babc4442940dadc | |
| author | jdduke <jdduke@chromium.org> | |
| Fri, 16 Jan 2015 18:31:52 +0000 (16 10:31 -0800) | ||
| committer | Commit bot <commit-bot@chromium.org> | |
| Fri, 16 Jan 2015 18:34:19 +0000 (16 18:34 +0000) | ||
| tree | ef7c8e76b88d672742b8d5c5264486fa13c3ba15 | treesnapshot (tar.gz zip) |
| parent | 8f2299d665a834429c8c67aafa4e6c630d39a717 | commitdiff |
Add UMA for TouchToFirstScrollUpdateSwap
TouchToScrollUpdateSwap is currently tracked in UMA. While this is
useful for gauging the typical response time for each event in a scroll
sequence, it is insufficient to indicate the intial scroll response
time. Add a TouchToFirstScrollUpdateSwap which measures the time between
touch event creation for the first GestureScrollUpdate in a sequence and
the frame swap time caused by that first scroll event.
Also remove INPUT_EVENT_LATENCY_SCROLL_UPDATE_RWH_COMPONENT as it is no
longer used on Aura.
BUG=436965
Review URL: https://codereview.chromium.org/827963005
Cr-Commit-Position: refs/heads/master@{#311928}
TouchToScrollUpdateSwap is currently tracked in UMA. While this is
useful for gauging the typical response time for each event in a scroll
sequence, it is insufficient to indicate the intial scroll response
time. Add a TouchToFirstScrollUpdateSwap which measures the time between
touch event creation for the first GestureScrollUpdate in a sequence and
the frame swap time caused by that first scroll event.
Also remove INPUT_EVENT_LATENCY_SCROLL_UPDATE_RWH_COMPONENT as it is no
longer used on Aura.
BUG=436965
Review URL: https://codereview.chromium.org/827963005
Cr-Commit-Position: refs/heads/master@{#311928}