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Issue 855991 link

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Issue metadata

Status: WontFix
Owner:
Closed: Jun 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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4.1% regression in rasterize_and_record_micro.top_25 at 568150:568238

Project Member Reported by alexclarke@chromium.org, Jun 25 2018

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Jun 25 2018

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=855991

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=dd1a3d0231b1f9ecfd8ee0541f359dfa4ade950c152ecc27d1c88532bf760df2


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

linux-perf
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jun 25 2018

Cc: thomasanderson@chromium.org beh...@behdad.org
Owner: thomasanderson@chromium.org
Status: Assigned (was: Untriaged)
📍 Found significant differences after each of 2 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/14db355b240000

Remove blanks facility from the library by behdad@behdad.org
https://chromium.googlesource.com/external/fontconfig/+/8f4c4d278d013f6cc69ba7d7bf0f8aed11398dfb
0.051 → No values

Reland "Update fontconfig to 6cc99d6a" by thomasanderson@chromium.org
https://chromium.googlesource.com/chromium/src/+/0c91664fce2e753a65b04107ad24c7422691cf9d
No values → 0.053

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions
Status: WontFix (was: Assigned)
Looks like the value was 0.051 before and after.   Bug 855990  is tracking the real regression.

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