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Issue 764717 link

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Issue metadata

Status: Duplicate
Merged: issue 764712
Owner: ----
Closed: Sep 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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15.9%-25.2% regression in memory.top_10_mobile at 501244:501292

Project Member Reported by mustaq@chromium.org, Sep 13 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Sep 13 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=764717

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=4938164963ba6176b78a0d6a0f77cdfbe310227e174ba21bc7cce14ae432dfc0


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

android-nexus7v2
android-webview-nexus5X
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Sep 14 2017

Mergedinto: 764712
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Juan A. Navarro Perez
  Commit : 59bf3021bcf91a57dd3e3972c9cfcb0c8e83b117
  Date   : Tue Sep 12 14:58:15 2017
  Subject: [tools/perf] Tweak memory.top_10_mobile story flow

Bisect Details
  Configuration: android_webview_arm64_aosp_perf_bisect
  Benchmark    : memory.top_10_mobile
  Metric       : memory:webview:all_processes:reported_by_os:system_memory:native_heap:proportional_resident_size_avg/background/after_https_www_google_co_uk_hl_en_q_science
  Change       : 26.99% | 34544288.0 -> 43867978.6667

Revision             Result                   N
chromium@501243      34544288 +- 383376       6      good
chromium@501267      34664437 +- 399304       6      good
chromium@501273      34619893 +- 395276       6      good
chromium@501274      43932320 +- 408682       6      bad       <--
chromium@501275      44087115 +- 503846       6      bad
chromium@501276      44007243 +- 460081       6      bad
chromium@501279      43678027 +- 1379028      6      bad
chromium@501291      43867979 +- 323880       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 memory.top_10_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8968558894833337776


For feedback, file a bug with component Speed>Bisection

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