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Issue 805554 link

Starred by 1 user
Status: Fixed
Owner:
penghuang@chromium.org
Closed: Jan 2018
Cc:
penghuang@chromium.org
█ roc...@chromium.org
piman@chromium.org
majidvp@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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A 500% regression in smoothness.tough_scrolling_cases at 531257:531309

Project Member Reported by majidvp@google.com, Jan 24 2018 
Affects android bots

Also impact other smoothness metrics to a lower degree
- smoothness.tough_filters_cases
- smoothness.tough_canvas_cases
- smoothness.tough_animation_cases
- smoothness.key_silk_cases
- thread_times.tough_scrolling_cases
- thread_times.key_silk_cases
....
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Jan 24 2018 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=805554

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=39dd9741f8410d0a3dafa108a155c81f327c0914a302185f23743ec331bbe650


Bot(s) for this bug's original alert(s):

android-nexus5
android-nexus7v2
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jan 24 2018

Cc: penghuang@chromium.org piman@chromium.org
Owner: penghuang@chromium.org
Status: Assigned (was: Untriaged)
📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/1411b884840000

Supports Presentation in GLSurfaceEGL
By penghuang@chromium.org · Tue Jan 23 18:59:02 2018
chromium @ 2adea4d74c2e7cee0228ac74b313ed8b2c6ad61b

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions

Comment 5 by penghuang@chromium.org, Jan 25 2018 

For record:
Run a test with a updated CL. https://pinpoint-dot-chromeperf.appspot.com/job/14f298fc840000
Project Member

Comment 6 by 42576172...@developer.gserviceaccount.com, Jan 26 2018

Cc: roc...@chromium.org
Owner: roc...@chromium.org
📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/14f298fc840000

Update component build documentation
By rockot@chromium.org · Thu Jan 25 22:36:31 2018
chromium @ ca112b210e77187e6d64158c3a3e5a2365f4231f

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions

Comment 7 by roc...@chromium.org, Jan 26 2018

Owner: ----
Status: Available (was: Assigned)
My CL is a documentation change.

Comment 8 by dtu@chromium.org, Jan 26 2018

Owner: penghuang@chromium.org
Sorry about that, perf try jobs are blaming random CLs instead of the patch: https://github.com/catapult-project/catapult/issues/4174
Project Member

Comment 10 by 42576172...@developer.gserviceaccount.com, Jan 30 2018 

📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/14b0e7ba840000

Comment 11 by penghuang@chromium.org, Jan 31 2018

Status: Fixed (was: Available)
The regression is because a driver  issue 750306 . It has been fixed by https://chromium-review.googlesource.com/c/chromium/src/+/895246
►

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