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Issue 872146 link

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Issue metadata

Status: WontFix
Owner: ----
Closed: Aug 31
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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3.7% regression in rasterize_and_record_micro.top_25 at 579874:579896

Project Member Reported by toyoshim@chromium.org, Aug 8

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=872146

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=425ea8e2e5764179484376b0be59c70cb2cd7ab5d9b286b10f1ca471121909b3


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

Android Nexus5X WebView Perf
Started another bisect, but since it's possible that this is noise, if the next bisect failed, it would be reasonable to close this as WontFix.
Cc: rayankans@chromium.org
Owner: rayankans@chromium.org
Status: Assigned (was: Untriaged)
📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/14880b04640000

[Background Fetch] Create a Job Controller for active fetches on restart by rayankans@chromium.org
https://chromium.googlesource.com/chromium/src/+/7f12fadafc517a24c90cf14cae82b1223de2af34
0.5661 → 0.5726 (+0.0065)

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions
Status: Untriaged (was: Assigned)
The CL is completely unrelated to the regressed metric (rasterize_and_record_micro).

The CL basically just formats some info loaded on startup, and it's only applicable if a Background Fetch is resuming on browser startup (which shouldn't be the case).

I'm unassigning the bug and kicking off another bisect as per the regression instructions
😿 Pinpoint job stopped with an error.
https://pinpoint-dot-chromeperf.appspot.com/job/17b8c6f5640000

All of the runs failed. The most common error (20/20 runs) was:
ReadValueError: Could not find values matching: {'story': u'file://static_top_25/techcrunch.html', 'histogram': u'record_time'}
Owner: ----
Status: WontFix (was: Untriaged)
I think this is a tiny regression, pinpoint can't find anything.  Nothing in the log should affect this test whatsoever.  Closing as WontFix.
📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/13e5c825640000

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