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Issue 808643 link

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Issue metadata

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



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6.3%-275.1% regression in system_health.common_desktop at 532581:532829

Project Member Reported by npm@chromium.org, Feb 2 2018

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=808643

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=1ba2f9bfa459f680bd8e32772f17acc3160133cd8da5b54d3859af304c91f9a3


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

chromium-rel-mac12
chromium-rel-win10
win-high-dpi
Cc: fsam...@chromium.org sky@chromium.org samans@chromium.org
Owner: fsam...@chromium.org
Status: Assigned (was: Untriaged)
📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/12a7d701840000

Surface synchronization: Reduce synchronization deadline for navigation by fsamuel@chromium.org
chromium @ b46e0efc8062d290e0657c12f22d0453dfd94188

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions
Status: Fixed (was: Assigned)
This has been fixed by this CL:

https://chromium-review.googlesource.com/c/chromium/src/+/902844

Surface synchronization: Measure deadlines in wall time instead of BeginFrames
Project Member

Comment 7 by 42576172...@developer.gserviceaccount.com, Feb 13 2018

📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/16c7368d840000
Project Member

Comment 8 by 42576172...@developer.gserviceaccount.com, Feb 13 2018

Cc: cbiesin...@chromium.org chrishtr@chromium.org asvitk...@chromium.org
Owner: cbiesin...@chromium.org
Status: Assigned (was: Fixed)
📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/14fef4ed840000

Revert "Add UKM metrics for rendering timing measurements" by cbiesinger@chromium.org
https://chromium.googlesource.com/chromium/src/+/772b2bcdbaa8ea5c5b1f47255c6c1562016fb680

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

Comment 9 by npm@chromium.org, Feb 13 2018

Owner: ----
Status: WontFix (was: Assigned)
It's unclear to me who fixed this but graphs are fine. Let's not rerun Pinpoint for this bug...

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