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Issue 707700 link

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Issue metadata

Status: Duplicate
Merged: issue 706731
Owner:
Closed: Apr 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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18.7% regression in v8.browsing_desktop_classic at 460362:460527

Project Member Reported by ulan@google.com, Apr 3 2017

Issue description

See the link to graphs below.
 

Comment 1 by ulan@google.com, Apr 3 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=707700

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgnPmB4wgM


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

chromium-rel-win7-x64-dual
Mergedinto: 706731
Status: Duplicate (was: Assigned)

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

Suspected Commit
  Author : rmcilroy
  Commit : 124254af04fd234fffa434b8b4380f5056528e3b
  Date   : Wed Mar 29 14:30:55 2017
  Subject: Remove V8Future experiment.

Bisect Details
  Configuration: win_x64_perf_bisect
  Benchmark    : v8.browsing_desktop_classic
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:allocated_objects_size_avg/memory:chrome:renderer_processes:reported_by_chrome:v8:heap:allocated_objects_size_avg
  Change       : 14.78% | 40155788.8215 -> 46091646.4682

Revision             Result                   N
chromium@460361      40155789 +- 3037236      6      good
chromium@460372      40870702 +- 2604880      6      good
chromium@460377      39754084 +- 2282018      6      good
chromium@460379      40796634 +- 2169833      6      good
chromium@460380      46224856 +- 2806898      6      bad       <--
chromium@460382      45572001 +- 2757138      6      bad
chromium@460403      46218885 +- 2321885      6      bad
chromium@460444      46815044 +- 3119465      6      bad
chromium@460527      46091646 +- 2027729      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests v8.browsing_desktop_classic

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8983350945760980288

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4971765215789056


| 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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