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Issue metadata

Status: Duplicate
Merged: issue 762304
Owner: ----
Closed: Sep 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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1.3% regression in system_health.memory_desktop at 498176:498270

Project Member Reported by briander...@chromium.org, Sep 5 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=762305

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=e4b6872173d743ef1b48d87140a40af15cef66d1d332b4438ecf4a221af2687d


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

chromium-rel-win10

=== BISECT JOB RESULTS ===
Perf regression found but unable to narrow commit range

Build failures prevented the bisect from narrowing the range further.


Bisect Details
  Configuration: winx64_10_perf_bisect
  Benchmark    : system_health.memory_desktop
  Metric       : memory:chrome:all_processes:reported_by_chrome:malloc:effective_size_avg/load_news/load_news_cnn
  Change       : 0.43% | 26418785.2222 -> 26506253.6667

Suspected Commit Range
  2 commits in range
  https://chromium.googlesource.com/chromium/src/+log/86069cb27b8cd46700f1d7a3e78f4e82df1b8c2b..d2c26a32e0b78da66a29585db80358eab35109f0


Revision             Result                   N
chromium@498175      26418785 +- 117155       9        good
chromium@498223      26423003 +- 214330       14       good
chromium@498247      26421954 +- 76515.1      6        good
chromium@498259      26426566 +- 186999       14       good
chromium@498260      26442197 +- 351061       21       good
chromium@498261      ---                      ---      build failure
chromium@498262      26492690 +- 352602       14       bad
chromium@498265      26469861 +- 97229.2      14       bad
chromium@498270      26506254 +- 151484       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=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=load.news.cnn 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/8969252290216574560


For feedback, file a bug with component Speed>Bisection
Mergedinto: 762304
Status: Duplicate (was: Untriaged)

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