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Issue 838452 link

Starred by 2 users
Status: Fixed
Owner:
alexilin@chromium.org
Closed: May 2018
Cc:
m...@chromium.org
█ jwd@chromium.org
alexilin@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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219.8%-768.6% regression in loading.desktop at 553977:554041

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=838452

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=105df3273279d526f2ca35a9967c46e71d18fb5789e47fc10f31f3d80e95d4e5


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

chromium-rel-win7-dual
Project Member

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

📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/14e73263c40000
Project Member

Comment 5 by 42576172...@developer.gserviceaccount.com, May 1 2018

Cc: caseq@chromium.org alexilin@chromium.org jwd@chromium.org johannes@google.com eseckler@chromium.org
Owner: alexilin@chromium.org
Status: Assigned (was: Untriaged)
📍 Found significant differences after each of 2 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/169dc8adc40000

Wait for focus before invoking document.hasFocus(). by johannes@google.com
https://chromium.googlesource.com/chromium/src/+/03212fef43d860b31ae8f29d360b3cdab11c2219

Disable SpeculativePreconnectValidation field trial by alexilin@chromium.org
https://chromium.googlesource.com/chromium/src/+/2aa00c589eaca198921047b055aefd88b22106c3

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

Comment 6 by eseckler@chromium.org, May 1 2018

Cc: -johannes@google.com -eseckler@chromium.org -caseq@chromium.org
johannes@'s changes to headless-only tests don't affect loading benchmarks.

Comment 7 by alexilin@chromium.org, May 31 2018

Status: Fixed (was: Assigned)
The feature controlled by the SpeculativePreconnectValidation field trial was enabled by default, so these regressions are actually improvements.
►

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