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Issue metadata

Status: Duplicate
Merged: issue 708644
Owner: ----
Closed: Apr 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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15.4% regression in thread_times.simple_mobile_sites at 464239:464295

Project Member Reported by alexclarke@chromium.org, Apr 19 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=713112

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg_J3GiQgM


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

android-one
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Apr 19 2017

Mergedinto: 708644
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : mattm
  Commit : 0704d236ee706ffb29fc22fd90f99537e7f15673
  Date   : Thu Apr 13 02:54:23 2017
  Subject: Convert android to use X509CertificateBytes instead of X509CertificateOpenSSL.

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : thread_times.simple_mobile_sites
  Metric       : thread_browser_cpu_time_per_frame/thread_browser_cpu_time_per_frame
  Change       : 10.07% | 4.48340822 -> 4.9347294499

Revision             Result                   N
chromium@464238      4.48341 +- 0.119001      9      good
chromium@464253      4.49417 +- 0.121019      9      good
chromium@464260      4.46493 +- 0.147673      9      good
chromium@464261      4.48163 +- 0.152877      6      good
chromium@464262      5.10202 +- 0.234014      6      bad       <--
chromium@464264      5.13068 +- 0.160985      6      bad
chromium@464267      4.89082 +- 0.769137      9      bad
chromium@464295      4.93473 +- 0.634251      9      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests thread_times.simple_mobile_sites

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8981888082153528000

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6409774167490560


| 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 Speed>Bisection.  Thank you!

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