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Issue 892685 link

Starred by 1 user
Status: WontFix
Owner:
sadrul@chromium.org
Closed: Oct 5
Cc:
█ chromium...@skia-public.iam.gserviceaccount.com
vmi...@chromium.org
sadrul@chromium.org
chiniforooshan@chromium.org
nedngu...@google.com
jbudorick@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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17.1% regression in rendering.mobile/tasks_per_frame_total_all at 593294:596519

Project Member Reported by chiniforooshan@chromium.org, Oct 5 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Oct 5 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=892685

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=6a74d4fe52c221dd7ef89e54742409dca139813d2f8fd4dc0f525d2d27f43166


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

Android Nexus6 WebView Perf

rendering.mobile - Benchmark documentation link:
  https://bit.ly/rendering-benchmarks
Project Member

Comment 4 by 42576172...@developer.gserviceaccount.com, Oct 5

Cc: jbudorick@chromium.org sadrul@chromium.org chromium...@skia-public.iam.gserviceaccount.com
Owner: sadrul@chromium.org
Status: Assigned (was: Untriaged)
📍 Found significant differences after each of 3 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/12cb3902e40000

Use vpython and remove vendored pymock. by jbudorick@chromium.org
https://chromium.googlesource.com/catapult/+/23c67a511280f6dbc2a2bea849dd7eed5104809e
tasks_per_frame_total_all: 32.59 → No values

Roll src/third_party/catapult e06567b30fdd..64f2ed4bb2f1 (1 commits) by chromium-autoroll@skia-public.iam.gserviceaccount.com
https://chromium.googlesource.com/chromium/src/+/276e662dbc2525240c0d3abe456086f11d04843b
tasks_per_frame_total_all: No values → 35.74

synthetic gesture: Allow high-frequency dispatch. by sadrul@chromium.org
https://chromium.googlesource.com/chromium/src/+/581a728b2665c85e466408c2d53371abcb7f763e
tasks_per_frame_total_all: 35.63 → 38.38 (+2.75)

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

Benchmark documentation link:
  https://bit.ly/rendering-benchmarks

Comment 5 by sadrul@chromium.org, Oct 5

Cc: vmi...@chromium.org
Status: WontFix (was: Assigned)
crrev.com/596507 increases the number of events dispatched per frame, which means more tasks per frame. So this is expected.
Project Member

Comment 6 by 42576172...@developer.gserviceaccount.com, Oct 6

Cc: nedngu...@google.com
📍 Found significant differences after each of 2 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/1414aeb0e40000

Remove legacy Android startup benchmarks by nednguyen@google.com
https://chromium.googlesource.com/chromium/src/+/57806536bf88ef8ab0efd7d5e0930fc372407d0f
tasks_per_frame_total_all: No values → 38.39

synthetic gesture: Allow high-frequency dispatch. by sadrul@chromium.org
https://chromium.googlesource.com/chromium/src/+/581a728b2665c85e466408c2d53371abcb7f763e
tasks_per_frame_total_all: 38.35 → 41.04 (+2.69)

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

Benchmark documentation link:
  https://bit.ly/rendering-benchmarks
Project Member

Comment 8 by 42576172...@developer.gserviceaccount.com, Oct 16 

📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/111f188ee40000
►

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