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Issue 725952 link

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Issue metadata

Status: Duplicate
Merged: issue 725114
Owner: ----
Closed: May 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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2.1% regression in system_health.memory_mobile at 472980:473207

Project Member Reported by pmeenan@chromium.org, May 24 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=725952

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDguum5qwoM


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

android-webview-nexus6
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, May 24 2017

Mergedinto: 725114
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Adam Klein
  Commit : 9397c1b73a607de3c836d9869527cf478668eb19
  Date   : Thu May 18 19:28:58 2017
  Subject: Revert "[parser] Refactor streaming scanner streams."

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:webview:all_processes:reported_by_os:system_memory:native_heap:proportional_resident_size_avg/load_search/load_search_yandex
  Change       : 2.40% | 23335772.0 -> 23895217.3333

Revision                           Result                   N
chromium@472979                    23335772 +- 97263.8      6      good
chromium@473036                    23312561 +- 186995       6      good
chromium@473051                    23206236 +- 162463       6      good
chromium@473053                    23212551 +- 149193       6      good
chromium@473053,v8@f4da43618c      23237468 +- 267842       6      good
chromium@473053,v8@6b5e443972      23347719 +- 173426       6      good
chromium@473053,v8@9397c1b73a      23872348 +- 100164       6      bad       <--
chromium@473054                    23739569 +- 139186       6      bad
chromium@473055                    23849820 +- 535778       6      bad
chromium@473058                    23760732 +- 113871       6      bad
chromium@473065                    23781212 +- 120362       6      bad
chromium@473093                    23841969 +- 192003       6      bad
chromium@473207                    23895217 +- 111636       6      bad

Please refer to the following doc on diagnosing memory regressions:
  https://chromium.googlesource.com/chromium/src/+/master/docs/memory-infra/memory_benchmarks.md

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=load.search.yandex system_health.memory_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8978699832621882720

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5840186593771520


| 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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