New issue
Advanced search Search tips

Issue 718808 link

Starred by 1 user

Issue metadata

Status: Duplicate
Merged: issue 718821
Owner: ----
Closed: May 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



Sign in to add a comment

21.6%-90.3% regression in v8.runtimestats.browsing_mobile at 468434:468569

Project Member Reported by verwa...@chromium.org, May 5 2017

Issue description

See the link to graphs below.
 

=== BISECT JOB RESULTS ===
Bisect was unable to run to completion

The bisect was able to narrow the range, you can try running with:
  good_revision: 651d8feadbd84df44c2c09ca287d82cba7fd8dbf
  bad_revision : 0079dbad35b7fb64939a1c5ddc992084cc5001b1

If failures persist contact the team (see below) and report the error.


Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : Optimize:duration_avg/browse_chrome/browse_chrome_newtab
  Change       : 79.22% | 68.8626666667 -> 123.4145

Revision             Result                  N
chromium@468433      68.8627 +- 17.2711      6      good
chromium@468479      75.4242 +- 9.30606      6      good
chromium@468502      75.6583 +- 18.0476      6      good
chromium@468508      80.3282 +- 10.4921      6      good
chromium@468511      123.589 +- 29.5143      6      bad
chromium@468514      123.334 +- 13.7786      6      bad
chromium@468525      123.414 +- 17.6104      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.chrome.newtab v8.runtimestats.browsing_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8980436793469484336

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6360557701038080


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!
Mergedinto: 718821
Status: Duplicate (was: Untriaged)

=== BISECT JOB RESULTS ===
Perf regression found with culprit

Suspected Commit
  Author : rnephew
  Commit : 0079dbad35b7fb64939a1c5ddc992084cc5001b1
  Date   : Tue May 02 00:45:10 2017
  Subject: Revert of [scheduler] Move some task types to suspendable task runner. (patchset #1 id:1 of https://codereview.chromium.org/2808273003/ )

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : Optimize:duration_avg/browse_chrome/browse_chrome_newtab
  Change       : 56.18% | 76.2658333333 -> 119.115333333

Revision             Result                  N
chromium@468433      76.2658 +- 27.7786      6      good
chromium@468479      75.0188 +- 31.48        6      good
chromium@468502      71.4517 +- 27.5752      6      good
chromium@468508      71.7877 +- 25.8221      6      good
chromium@468510      69.4212 +- 16.8789      6      good
chromium@468511      120.084 +- 22.266       6      bad       <--
chromium@468514      116.874 +- 16.2644      6      bad
chromium@468525      119.115 +- 20.3159      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.chrome.newtab v8.runtimestats.browsing_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8980394175872594608

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6360557701038080


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!

Sign in to add a comment