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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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19.8%-434.1% regression in system_health.memory_mobile at 493556:493676

Project Member Reported by fmea...@chromium.org, Aug 14 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Aug 14 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=755324

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=fad28c43b76617fdf0a40bb32df508be9cf9603137b95127b95ad5a5ee3025af


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

android-one
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Aug 15 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:skia:effective_size_avg/load_media/load_media_google_images
  Change       : 358.83% | 23348.0 -> 107128.0

Revision             Result                 N
chromium@493555      23348.0 +- 0.0         14      good
chromium@493557      23348.0 +- 0.0         14      good
chromium@493558      107128 +- 91776.4      6       bad       <--
chromium@493559      68000.4 +- 149769      9       bad
chromium@493563      107128 +- 91776.4      6       bad
chromium@493570      107083 +- 91727.1      6       bad
chromium@493586      109502 +- 131603       14      bad
chromium@493616      107128 +- 91776.4      6       bad
chromium@493676      107128 +- 91776.4      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=load.media.google.images 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/8971250355528338784


For feedback, file a bug with component Speed>Bisection

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