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Issue 762220 link

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Issue metadata

Status: Duplicate
Merged: issue 760682
Owner: ----
Closed: Sep 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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14.6% regression in system_health.memory_mobile at 497956:498063

Project Member Reported by briander...@chromium.org, Sep 5 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=762220

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=f09c202a0ac9f08c0c90df52ca1d2a749877306963fb6dcbb212b8565b1ac22a


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

android-nexus5X
Mergedinto: 760682
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Timothy Loh
  Commit : 2db3fa641f2b6a05ee894f158a93a419caf3e896
  Date   : Tue Aug 29 03:09:33 2017
  Subject: Prepare tests for enabling modal permission prompts and remove gesture experiment

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_os:gpu_memory:proportional_resident_size_avg/load_search/load_search_baidu
  Change       : 14.62% | 48746496.0 -> 55873536.0

Revision             Result                   N
chromium@497955      48746496 +- 0.0          6      good
chromium@497982      47416661 +- 7283804      6      good
chromium@497996      48746496 +- 0.0          6      good
chromium@498003      48746496 +- 0.0          6      good
chromium@498004      55873536 +- 0.0          6      bad       <--
chromium@498005      55873536 +- 0.0          6      bad
chromium@498006      55873536 +- 0.0          6      bad
chromium@498009      55873536 +- 0.0          6      bad
chromium@498063      55873536 +- 0.0          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.search.baidu 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/8969256109130675760


For feedback, file a bug with component Speed>Bisection

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