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Issue 838439 link

Starred by 1 user
Status: Duplicate
Merged: issue 836469
Owner:
lukasza@chromium.org
Closed: May 2018
Cc:
pastarmovj@chromium.org
█ kbr@chromium.org
hinoka@chromium.org
tandrii@chromium.org
rdevlin....@chromium.org
isherman@chromium.org
m...@chromium.org
lukasza@chromium.org
alex...@chromium.org
wfh@chromium.org
creis@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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5.4%-109.7% regression in system_health.common_desktop at 552292:554551

Project Member Reported by m...@chromium.org, May 1 2018 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, May 1 2018 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=838439

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=be94d1479aeaa2b132aa591a55d1b3db83445ff0e32fb6cd27c570ee6dcecf2d


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

chromium-rel-mac11-pro
chromium-rel-win7-gpu-intel
chromium-rel-win7-gpu-nvidia
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, May 1 2018

Cc: kbr@chromium.org rdevlin....@chromium.org tandrii@chromium.org isherman@chromium.org hinoka@chromium.org alex...@chromium.org lukasza@chromium.org pastarmovj@chromium.org
Owner: tandrii@chromium.org
Status: Assigned (was: Untriaged)
📍 Found significant differences after each of 2 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/149dc8adc40000

Make --site-per-process the default on ToT via fieldtrial_testing_config by lukasza@chromium.org
https://chromium.googlesource.com/chromium/src/+/fb1ccf02ee8ca79e1404abfd3a3a7d540b7d2dbd

[infra] Use builder_view_only for try builder groups (consoles). by tandrii@chromium.org
https://chromium.googlesource.com/chromium/src/+/fd46b735fa9fe3aab004f4f08dd39393b5f24474

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

Comment 4 by tandrii@chromium.org, May 1 2018

Owner: lukasza@chromium.org
My commit crrev/fd46b735fa9fe3aab004f4f08dd39393b5f24474 doesn't take part in build, let alone build artifacts. Either benchmark is too noisy (percentages in title don't inspire confidence) or this is another commit in the list above. 

lukasza@chromium.org wdyt?

Comment 5 by lukasza@chromium.org, May 1 2018

Components: Internals>Sandbox>SiteIsolation
Mergedinto: 836469
Status: Duplicate (was: Assigned)
The pinpoint job in #c3 points out a regression in timeToFirstPaint.  Therefore, I think it is fair to resolve this bug as a duplicate of  issue 836469  where we track a regression in timeToFirstContentfulPaint.
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