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Issue metadata

Status: Duplicate
Merged: issue 726787
Owner: ----
Closed: May 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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4.4%-14.7% regression in system_health.memory_mobile at 474508:474580

Project Member Reported by briander...@chromium.org, May 26 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, May 27 2017

Mergedinto: 726787
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : fsamuel
  Commit : b520968f4ac40fb89ce25329134b388ca42cca12
  Date   : Thu May 25 03:10:42 2017
  Subject: cc::SurfaceDependencyTracker should not crash when a Display goes away

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_os:system_memory:java_heap:proportional_resident_size_avg/browse_tools/browse_tools_maps
  Change       : 16.33% | 20508672.0 -> 23858346.6667

Revision             Result                   N
chromium@474507      20508672 +- 144141       5      good
chromium@474526      20696235 +- 723216       6      good
chromium@474535      20646741 +- 707083       6      good
chromium@474537      20669611 +- 247962       6      good
chromium@474538      20662784 +- 408009       6      good
chromium@474539      23696043 +- 855352       6      bad       <--
chromium@474544      23964331 +- 1069165      6      bad
chromium@474580      23858347 +- 678988       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.tools.maps system_health.memory_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8978491833792685888

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4972249133613056


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!

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