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Issue metadata

Status: Duplicate
Owner: ----
Closed: Dec 2016
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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5.3% regression in system_health.memory_mobile at 437311:437380

Project Member Reported by jasontiller@chromium.org, Dec 19 2016

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=675668

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgz6OZ9QsM


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

android-nexus9
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Dec 19 2016

Mergedinto: 673317
Status: Duplicate (was: Untriaged)

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


===== SUSPECTED CL(s) =====
Subject : [HttpCacheTransaction] Ignore vary check for WriteMetadata requests
Author  : jkarlin
Commit description:
  
BUG=660264

Review-Url: https://codereview.chromium.org/2539323003
Cr-Commit-Position: refs/heads/master@{#437349}
Commit  : dddb82a088ea0a9fe1e50e954a3e9dd6cb7f5a19
Date    : Thu Dec 08 21:35:19 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev  N  Good?
chromium@437310  7282592  992780   6  good
chromium@437345  7244684  930077   6  good
chromium@437348  7179053  684956   6  good
chromium@437349  7977225  547378   6  bad    <--
chromium@437350  7820577  150157   6  bad
chromium@437354  7909847  231604   6  bad
chromium@437363  7747280  103490   6  bad
chromium@437380  7912519  282915   6  bad

Bisect job ran on: android_nexus9_perf_bisect
Bug ID: 675668

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=browse.social.twitter system_health.memory_mobile
Test Metric: memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/browse_social/browse_social_twitter
Relative Change: 8.65%

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus9_perf_bisect/builds/2333
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8992821654810109296


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5214002081169408

| 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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