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Issue 759685 link

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Issue metadata

Status: Duplicate
Merged: issue 755239
Owner: ----
Closed: Aug 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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9.7% regression in system_health.memory_mobile at 493556:493676

Project Member Reported by kraynov@chromium.org, Aug 28 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Aug 28 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=759685

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=912a4c309c41f8c800be910adef8623959e4620b8d342fa9d3f2a7bf97608c77


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

android-one
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Aug 28 2017

Mergedinto: 755239
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Xida Chen
  Commit : ea20f077cb3981dce10270048decfab2a33e9fcd
  Date   : Thu Aug 10 22:21:06 2017
  Subject: Enable Waterfall testing for reduced soft tile memory experiment

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:malloc:effective_size_avg/browse_news/browse_news_qq
  Change       : 7.80% | 14400189.6667 -> 15523676.5

Revision             Result                   N
chromium@493555      14400190 +- 118079       6      good
chromium@493557      14416270 +- 144817       6      good
chromium@493558      15500148 +- 179001       6      bad       <--
chromium@493559      15464459 +- 97186.0      6      bad
chromium@493563      15447111 +- 246652       6      bad
chromium@493571      15494709 +- 308374       6      bad
chromium@493586      15447291 +- 168166       6      bad
chromium@493616      15507479 +- 120802       6      bad
chromium@493676      15523677 +- 145021       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-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.news.qq 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/8970000079790142208


For feedback, file a bug with component Speed>Bisection

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