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Issue metadata

Status: Duplicate
Merged: issue 740885
Owner: ----
Closed: Jul 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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1%-22% regression in system_health.memory_desktop at 484852:485796

Project Member Reported by mlippautz@chromium.org, Jul 19 2017

Issue description

Missing data points before the regression.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Jul 19 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=746261

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=84a68af0490ff86377f76d74db0072eec6ca7748f3dcbe14a2edde1a2846e272


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

chromium-rel-mac11
chromium-rel-mac11-pro
chromium-rel-win7-gpu-nvidia
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jul 19 2017

Mergedinto: 740885
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : perezju
  Commit : 00b0c16c97088f5c06df9d3b27eaeb41f06173e5
  Date   : Sat Jul 08 09:18:52 2017
  Subject: Revert of [System Health] Extend dump time to 5 seconds (patchset #2 id:20001 of https://codereview.chromium.org/2946013004/ )

Bisect Details
  Configuration: mac_pro_perf_bisect
  Benchmark    : system_health.memory_desktop
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:effective_size_avg/load_media/load_media_dailymotion
  Change       : 20.52% | 24291409.3333 -> 29274881.3333

Revision                                 Result                   N
chromium@484851                          24291409 +- 140749       6      good
chromium@485088                          24201724 +- 113187       6      good
chromium@485118                          24413723 +- 629450       6      good
chromium@485133                          24204188 +- 79846.9      6      good
chromium@485140                          24173363 +- 125507       6      good
chromium@485144                          24198963 +- 156997       6      good
chromium@485146                          24252315 +- 336297       6      good
chromium@485146,catapult@00b0c16c97      29213571 +- 661719       6      bad       <--
chromium@485147                          29127587 +- 569129       6      bad
chromium@485206                          29181371 +- 691651       6      bad
chromium@485324                          29165704 +- 673064       6      bad
chromium@485796                          29274881 +- 700148       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=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=load.media.dailymotion system_health.memory_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8973651235516914192


For feedback, file a bug with component Speed>Bisection

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