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Issue 732297 link

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Issue metadata

Status: Duplicate
Merged: issue 731880
Owner: ----
Closed: Jun 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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9.7% regression in memory.long_running_idle_gmail_tbmv2 at 477906:477942

Project Member Reported by alexclarke@chromium.org, Jun 12 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=732297

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDglrGYvgsM


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

chromium-rel-mac11
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jun 12 2017

Mergedinto: 731880
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Alex Clarke
  Commit : cfd4fb5bd56f9e0f98668471a21f7f720cd5c311
  Date   : Thu Jun 08 10:26:12 2017
  Subject: Pause virtual time until provisional navigations are committed

Bisect Details
  Configuration: mac_10_11_perf_bisect
  Benchmark    : memory.long_running_idle_gmail_tbmv2
  Metric       : v8-gc-total_avg/v8-gc-total_avg
  Change       : 10.52% | 0.58232151868 -> 0.643569345254

Revision             Result                     N
chromium@477905      0.582322 +- 0.0245009      6      good
chromium@477924      0.579248 +- 0.0245648      6      good
chromium@477933      0.584655 +- 0.0209989      6      good
chromium@477934      0.595297 +- 0.0225711      6      good
chromium@477935      0.625468 +- 0.0279447      6      bad       <--
chromium@477936      0.619538 +- 0.0965451      9      bad
chromium@477938      0.656313 +- 0.0723554      6      bad
chromium@477942      0.643569 +- 0.12905        6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests memory.long_running_idle_gmail_tbmv2

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977001960676533568

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6130154255941632


| 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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