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Issue metadata

Status: Duplicate
Merged: issue 633527
Owner:
Last visit > 30 days ago
Closed: Aug 2016
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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8.7% regression in system_health.memory_mobile at 408939:408953

Project Member Reported by petrcermak@chromium.org, Aug 2 2016

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=633540

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgpv3tuwkM


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

android-nexus7v2
Mergedinto: 633527
Status: Duplicate (was: Assigned)

===== BISECT JOB RESULTS =====
Status: completed


===== SUSPECTED CL(s) =====
Subject : Refactoring: Make member variables in Resource private
Author  : hajimehoshi
Commit description:
  
This CL moves some member variables in Resource class from protected to
private to improve code health.

BUG=n/a
TEST=webkit_unit_tests

Review-Url: https://codereview.chromium.org/2199713002
Cr-Commit-Position: refs/heads/master@{#408943}
Commit  : 33e8546b6e54b2a38d9baa327f45238cf6d64c28
Date    : Mon Aug 01 11:50:46 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev  N  Good?
chromium@408938  5498629  164019   5  good
chromium@408942  5582325  31501.1  5  good
chromium@408943  6020778  134558   5  bad    <--
chromium@408944  5978104  149355   5  bad
chromium@408946  6074613  16150.7  5  bad
chromium@408953  6048906  43637.1  5  bad

Bisect job ran on: android_nexus7_perf_bisect
Bug ID: 633540

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests system_health.memory_mobile
Test Metric: load_news-memory:chrome:all_processes:reported_by_chrome:partition_alloc:effective_size_avg/load_news_nytimes
Relative Change: 10.01%
Score: 99.5

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus7_perf_bisect/builds/3137
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9005450628815922640


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6106974618386432

| 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 Tests>AutoBisect.  Thank you!
Labels: SystemHealth-Sheriff
Labels: -Performance-Sheriff

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