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Issue metadata

Status: Duplicate
Merged: issue 636368
Owner:
Last visit > 30 days ago
Closed: Aug 2016
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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62.5% regression in v8.top_25_smooth at 410702:410740

Project Member Reported by pmeenan@chromium.org, Aug 10 2016

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=636367

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgttrSpwoM


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

android-nexus7v2
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Aug 11 2016

Mergedinto: 636368
Status: Duplicate (was: Assigned)

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


===== SUSPECTED CL(s) =====
Subject : [heap] Enforce finalization of marking at heap limit when optimizing for memory usage.
Author  : hpayer
Commit description:
  
BUG= chromium:634900 

Review-Url: https://codereview.chromium.org/2225363002
Cr-Commit-Position: refs/heads/master@{#38495}
Commit  : a7b7d691064f00feaa37946416e65c76d6b9926e
Date    : Tue Aug 09 13:09:14 2016


===== TESTED REVISIONS =====
Revision                       Mean     Std Dev  N  Good?
chromium@410701                257.341  9.05298  5  good
chromium@410721                255.058  12.9307  4  good
chromium@410731                261.346  11.6147  5  good
chromium@410734                261.102  15.2618  5  good
chromium@410734,v8@9b6d753170  246.074  18.4576  5  good
chromium@410734,v8@2f6b26ed45  256.637  16.4138  5  good
chromium@410734,v8@c403ab7f57  265.124  8.21394  4  good
chromium@410734,v8@a7b7d69106  347.494  25.4602  6  bad    <--
chromium@410735                359.018  23.269   4  bad
chromium@410736                318.966  26.7192  5  bad
chromium@410740                336.181  41.0432  5  bad

Bisect job ran on: android_nexus7_perf_bisect
Bug ID: 636367

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests v8.top_25_smooth
Test Metric: v8_gc_total_outside_idle/v8_gc_total_outside_idle
Relative Change: 39.83%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus7_perf_bisect/builds/3187
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9004709796772933440


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5778782107992064

| 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!

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