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Issue metadata

Status: Duplicate
Merged: issue 737981
Owner: ----
Closed: Jun 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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23%-29.9% regression in system_health.common_desktop at 482838:482926

Project Member Reported by tdres...@chromium.org, Jun 29 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=737980

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg7uv3vQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg7tnCrwoM


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

android-nexus6
chromium-rel-win10
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jun 29 2017

Mergedinto: 737981
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Christopher Cameron
  Commit : 1894d423068be735560e0171922c833c4091b5d1
  Date   : Wed Jun 28 06:31:03 2017
  Subject: color: Enable color correct rendering by default

Bisect Details
  Configuration: winx64_10_perf_bisect
  Benchmark    : system_health.common_desktop
  Metric       : cpu_time_percentage_avg/load_games/load_games_bubbles
  Change       : 27.46% | 0.713594848228 -> 0.909529257436

Revision             Result                    N
chromium@482837      0.713595 +- 0.256833      14      good
chromium@482876      0.69775 +- 0.15679        6       good
chromium@482895      0.71178 +- 0.21791        9       good
chromium@482900      0.70688 +- 0.22326        9       good
chromium@482903      0.691163 +- 0.208744      9       good
chromium@482904      0.928262 +- 0.163977      6       bad       <--
chromium@482905      0.939954 +- 0.331524      9       bad
chromium@482914      0.909529 +- 0.440656      14      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.games.bubbles system_health.common_desktop

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8975446552176281344


For feedback, file a bug with component Speed>Bisection

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