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Issue metadata

Status: Duplicate
Merged: issue 715945
Owner: ----
Closed: Apr 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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17.7%-76.6% regression in v8.runtimestats.browsing_mobile_classic at 467236:467307

Project Member Reported by jgruber@chromium.org, Apr 28 2017

Issue description

Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Apr 28 2017

Mergedinto: 715945
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : peria
  Commit : 040755ece35f949c4de74d85f5a651e84a0beafe
  Date   : Wed Apr 26 07:20:51 2017
  Subject: Use SetNativeDataProperty to install features dynamically on instances

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile_classic
  Metric       : v8-gc-full-mark-compactor_sum/browse_social/browse_social_instagram
  Change       : 78.59% | 100.750333333 -> 179.934666667

Revision             Result                  N
chromium@467235      100.75 +- 1.96291       6      good
chromium@467253      100.311 +- 1.37327      6      good
chromium@467258      99.3508 +- 2.53015      6      good
chromium@467259      100.183 +- 1.66207      6      good
chromium@467260      178.984 +- 4.27256      6      bad       <--
chromium@467262      179.56 +- 3.61261       6      bad
chromium@467271      178.136 +- 1.16738      6      bad
chromium@467307      179.935 +- 5.80141      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.social.instagram v8.runtimestats.browsing_mobile_classic

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8981061445749169408

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5889187657547776


| 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!

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