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Issue 708852 link

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Issue metadata

Status: Duplicate
Merged: issue 706892
Owner: ----
Closed: Apr 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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1.9% regression in v8.infinite_scroll_tbmv2 at 460545:460624

Project Member Reported by ericrk@chromium.org, Apr 6 2017

Issue description

This bot should not have been impacted by the change it was grouped into. Splitting it out and re-bisecting.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=708852

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgnLKu5wsM


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

android-nexus6
Mergedinto: 706892
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Caitlin Potter
  Commit : bf463c4dc080abb1ae39c6f0a93e6a95867b0ca3
  Date   : Wed Mar 29 17:33:12 2017
  Subject: [async-iteration] implement AsyncGenerator

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : v8.infinite_scroll_tbmv2
  Metric       : memory:chrome:all_processes:reported_by_chrome:v8:allocated_objects_size_avg/flickr
  Change       : 2.22% | 2102723.0 -> 2149496.0

Revision                           Result                  N
chromium@460544                    2102723 +- 6.78233      6      good
chromium@460584                    2102716 +- 24.7252      6      good
chromium@460604                    2102712 +- 38.6782      6      good
chromium@460614                    2102704 +- 34.7563      6      good
chromium@460619                    2102707 +- 31.707       6      good
chromium@460620                    2102715 +- 27.9643      6      good
chromium@460620,v8@6234fda3c9      2099333 +- 42.1189      6      good
chromium@460620,v8@bf463c4dc0      2146922 +- 28.0595      6      bad       <--
chromium@460620,v8@367d646a9e      2146924 +- 24.4949      6      bad
chromium@460620,v8@5615e5b866      2146128 +- 31.0376      6      bad
chromium@460621                    2149498 +- 34.2247      6      bad
chromium@460622                    2149501 +- 30.1552      6      bad
chromium@460624                    2149496 +- 34.7563      6      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 --story-filter=flickr v8.infinite_scroll_tbmv2

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8983105046466897840

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5824986977140736


| 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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