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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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54.3% regression in system_health.common_desktop at 453347:453501

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

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=697765

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg5PjI5QkM


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

chromium-rel-win7-gpu-intel
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: winx64intel_perf_bisect
  Benchmark    : system_health.common_desktop
  Metric       : timeToFirstMeaningfulPaint_avg/load_media/load_media_imgur
  Change       : 86.14% | 1702.60983334 -> 3169.19433331

Revision             Result                  N
chromium@453346      1702.61 +- 662.804      6      good
chromium@453366      1776.89 +- 808.914      6      good
chromium@453376      1733.29 +- 341.276      6      good
chromium@453377      1718.52 +- 749.492      6      good
chromium@453378      2639.01 +- 606.084      6      bad       <--
chromium@453379      2447.96 +- 631.176      6      bad
chromium@453381      2661.14 +- 545.634      6      bad
chromium@453385      2735.6 +- 611.246       6      bad
chromium@453424      3085.46 +- 3476.6       6      bad
chromium@453501      3169.19 +- 3635.32      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=load.media.imgur system_health.common_desktop

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8986248823497080592

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6154933159591936


| 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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