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Issue metadata

Status: Duplicate
Merged: issue 705619
Owner: ----
Closed: Mar 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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21.9%-36.6% regression in v8.infinite_scroll_tbmv2 at 459650:459662

Project Member Reported by lanwei@chromium.org, Mar 30 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Mar 30 2017

Mergedinto: 705619
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : sugoi
  Commit : 7ae2ba1892a8b4dee8d7c231ac0e0fbe66588912
  Date   : Sat Mar 25 13:59:47 2017
  Subject: Solving some telemetry tests' slowness

Bisect Details
  Configuration: win_8_perf_bisect
  Benchmark    : v8.infinite_scroll_tbmv2
  Metric       : v8-gc-incremental-step_avg/flickr
  Change       : 10.40% | 0.401285681042 -> 0.443012910298

Revision             Result                      N
chromium@459649      0.401286 +- 0.057902        9      good
chromium@459650      0.401487 +- 0.0555386       9      good
chromium@459651      0.437488 +- 0.115294        9      bad       <--
chromium@459653      0.45049 +- 0.0167458        6      bad
chromium@459656      0.450334 +- 0.00835461      6      bad
chromium@459662      0.443013 +- 0.0762582       9      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=flickr v8.infinite_scroll_tbmv2

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8983674999781871920

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5321112352718848


| 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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