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Issue 792027 link

Starred by 2 users

Issue metadata

Status: Duplicate
Merged: issue 789441
Owner: ----
Closed: Dec 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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7.4%-41.9% regression in system_health.memory_mobile at 519199:519405

Project Member Reported by pmeenan@chromium.org, Dec 5 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=792027

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=dd23acfbb9ad0043074944722b20cb74c2d6f9d1def098b1a4b520569ca0f08f


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

android-nexus5
Mergedinto: 789441
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Tsuyoshi Horo
  Commit : e9cdaa227686d4e995569173d451cab0767ac48f
  Date   : Mon Nov 27 09:57:08 2017
  Subject: Add PWAFullCodeCache to fieldtrial_testing_config.json

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_os:system_memory:native_heap:proportional_resident_size_avg/load_news/load_news_washingtonpost
  Change       : 35.66% | 40260787.3333 -> 54617764.0

Revision             Result                   N
chromium@519198      40260787 +- 535582       6      good
chromium@519250      40244261 +- 577936       6      good
chromium@519257      40130753 +- 616116       6      good
chromium@519260      40078174 +- 272061       6      good
chromium@519261      53474855 +- 9451686      6      bad       <--
chromium@519262      54003425 +- 4744335      6      bad
chromium@519263      55283223 +- 6124540      6      bad
chromium@519276      54297267 +- 2316709      6      bad
chromium@519302      54551716 +- 7948157      6      bad
chromium@519405      54617764 +- 7444026      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.news.washingtonpost 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/8961037479866632752


For feedback, file a bug with component Speed>Bisection

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