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Issue metadata

Status: Duplicate
Merged: issue 742808
Owner: ----
Closed: Jul 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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13.5% regression in system_health.memory_mobile at 485734:485808

Project Member Reported by nzolghadr@chromium.org, Jul 17 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Jul 17 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=744685

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=0336874d0ced0a8fa78cc55815a4fd9f7e3e7bf7ee82583fb7d0b7f5d8d2c940


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

android-webview-nexus5X
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jul 17 2017

Mergedinto: 742808
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Alexander Timin
  Commit : 214a2f9dd64151cfb5626020d8ba74f2d72012a2
  Date   : Wed Jul 12 01:19:03 2017
  Subject: [scheduler] Refactor renderer scheduler policies.

Bisect Details
  Configuration: android_webview_arm64_aosp_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:webview:all_processes:reported_by_chrome:malloc:effective_size_avg/browse_social/browse_social_tumblr_infinite_scroll
  Change       : 19.57% | 80647494.6667 -> 96434015.0

Revision             Result                    N
chromium@485733      80647495 +- 4828379       6      good
chromium@485752      81373026 +- 8949210       6      good
chromium@485757      81445718 +- 11009074      9      good
chromium@485759      81152298 +- 8443371       6      good
chromium@485760      90631497 +- 10270829      9      bad       <--
chromium@485762      92356885 +- 13730064      9      bad
chromium@485771      91979106 +- 9293270       6      bad
chromium@485808      96434015 +- 14641669      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=browse.social.tumblr.infinite.scroll system_health.memory_mobile

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8973806184279696832


For feedback, file a bug with component Speed>Bisection

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