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Issue metadata

Status: Duplicate
Merged: issue 678308
Owner: ----
Closed: Jan 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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4.4% regression in system_health.memory_mobile at 441032:441035

Project Member Reported by primiano@chromium.org, Jan 5 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=678566

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg3-OkpAoM


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

android-nexus5X
Mergedinto: 678308
Status: Duplicate (was: Untriaged)

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


===== SUSPECTED CL(s) =====
Subject : [Turbofan] Make GenericLowering operate concurrently.
Author  : mvstanton
Commit description:
  
R=epertoso@chromium.org
BUG= 5428 

Review-Url: https://codereview.chromium.org/2607243002
Cr-Commit-Position: refs/heads/master@{#42003}
Commit  : a93aab375a0ecf938128fe097b8b6abd429bb364
Date    : Fri Dec 30 14:03:54 2016


===== TESTED REVISIONS =====
Revision                       Mean      Std Dev  N  Good?
chromium@441031                12143581  73496.5  6  good
chromium@441033                12150688  40871.3  6  good
chromium@441034                12159111  57818.2  6  good
chromium@441034,v8@a93aab375a  12691376  81497.1  6  bad    <--
chromium@441034,v8@21443fab7c  12676249  93565.6  6  bad
chromium@441035                12695764  41372.1  6  bad

Bisect job ran on: android_nexus5X_perf_bisect
Bug ID: 678566

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=load.news.wikipedia system_health.memory_mobile
Test Metric: memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/load_news/load_news_wikipedia
Relative Change: 4.55%

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus5X_perf_bisect/builds/1034
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8991309273942604064


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6387002377764864

| 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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