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Issue 911469 link

Starred by 1 user
Status: Duplicate
Merged: issue 913500
Owner:
mythria@chromium.org
Closed: Dec 19
Cc:
zhuoyu.q...@samsung.com
mythria@chromium.org
toyoshim@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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40.8% regression in loading.desktop at 603374:603436

Project Member Reported by toyoshim@chromium.org, Dec 4 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Dec 4 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=911469

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=230942ea1cc4dd9a725d8db0ec2960ce3c8fa44c67e0fb70542dcc0700e31650


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

Win 7 Perf

loading.desktop - Benchmark documentation link:
  https://bit.ly/loading-benchmarks
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Dec 4 

😿 Pinpoint job stopped with an error.
https://pinpoint-dot-chromeperf.appspot.com/job/16198b78140000

All of the runs failed. The most common error (20/20 runs) was:
SwarmingTestError: The test failed. No Python exception was found in the log.
Project Member

Comment 6 by 42576172...@developer.gserviceaccount.com, Dec 19

Cc: mythria@chromium.org
Owner: mythria@chromium.org
Status: Assigned (was: Untriaged)
📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/14b5e51e140000

Start a field trial for Isolated code cache by mythria@chromium.org
https://chromium.googlesource.com/chromium/src/+/142ae7f8b7a7426ca426524a9593a39cc3e4f9ac
timeToFirstContentfulPaint: 209.2 → 231.8 (+22.6)

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

Benchmark documentation link:
  https://bit.ly/loading-benchmarks

Comment 7 by mythria@chromium.org, Dec 19

Mergedinto: 913500
Status: Duplicate (was: Assigned)
Project Member

Comment 8 by 42576172...@developer.gserviceaccount.com, Dec 19

Cc: zhuoyu.q...@samsung.com
📍 Found significant differences after each of 2 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/17e602d1140000

Start a field trial for Isolated code cache by mythria@chromium.org
https://chromium.googlesource.com/chromium/src/+/142ae7f8b7a7426ca426524a9593a39cc3e4f9ac
timeToFirstContentfulPaint: 243.1 → 226.8 (-16.27)

Rename OpenType namepsace to open_type by zhuoyu.qian@samsung.com
https://chromium.googlesource.com/chromium/src/+/d58b8efda8c132d057fd7d19f1c5552b229e15f8
timeToFirstContentfulPaint: 226.8 → 250.9 (+24.06)

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

Benchmark documentation link:
  https://bit.ly/loading-benchmarks
►

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