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Issue metadata

Status: Duplicate
Merged: issue 697665
Owner: ----
Closed: Mar 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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198%-340.5% regression in smoothness.top_25_smooth at 453301:453528

Project Member Reported by sullivan@chromium.org, Mar 2 2017

Issue description

See the link to graphs below.
 
Mergedinto: 697665
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : rogerm
  Commit : 2233a4a7cb12ac4acdebd33491b528f8fb670f02
  Date   : Mon Feb 27 23:11:16 2017
  Subject: [translate] Add translate ranker model loader.

Bisect Details
  Configuration: winx64ati_perf_bisect
  Benchmark    : smoothness.top_25_smooth
  Metric       : first_gesture_scroll_update_latency/LinkedIn
  Change       : 423.62% | 1.589 -> 8.32033333333

Revision             Result                   N
chromium@453339      1.589 +- 0.166589        6      good
chromium@453359      1.61733 +- 0.152753      6      good
chromium@453369      1.57917 +- 0.147597      6      good
chromium@453374      1.5315 +- 0.29032        6      good
chromium@453376      1.54667 +- 0.282583      6      good
chromium@453377      1.57267 +- 0.18052       6      good
chromium@453378      7.12917 +- 11.9374       6      bad       <--
chromium@453416      6.6695 +- 7.94056        6      bad
chromium@453493      8.32033 +- 12.8291       6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=LinkedIn smoothness.top_25_smooth

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8986211152065030816

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4958407884275712


| 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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