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Issue metadata

Status: Duplicate
Merged: issue 737353
Owner: ----
Closed: Jul 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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6.2% regression in system_health.memory_mobile at 482218:482301

Project Member Reported by perezju@google.com, Jul 3 2017

Issue description

See the link to graphs below.
 
Mergedinto: 737353
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : perezju
  Commit : b4eb70c319cb0f38d1a7764e7d9fb56dc96f8bcf
  Date   : Mon Jun 26 14:25:41 2017
  Subject: [System Health] Extend dump time to 5 seconds

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:cc:effective_size_avg/load_tools/load_tools_weather
  Change       : 3.37% | 53247296.8889 -> 55040445.3333

Revision                                 Result                   N
chromium@482217                          53247297 +- 5351310      9      good
chromium@482259                          51553416 +- 766315       6      good
chromium@482280                          51332200 +- 766315       6      good
chromium@482282                          51110984 +- 0.0          6      good
chromium@482282,catapult@b4eb70c319      54854728 +- 583303       6      bad       <--
chromium@482283                          54748232 +- 737826       6      bad
chromium@482286                          55182440 +- 766315       6      bad
chromium@482291                          54961224 +- 0.0          6      bad
chromium@482301                          55040445 +- 1110528      9      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.tools.weather 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/8975080656680185328


For feedback, file a bug with component Speed>Bisection

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