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Issue 724051 link

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Issue metadata

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



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4.7% regression in memory.top_10_mobile at 470468:470540

Project Member Reported by tdres...@chromium.org, May 18 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=724051

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgqvXHvwsM


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

android-nexus5X
Project Member

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


=== BISECT JOB RESULTS ===
Bisect failed unexpectedly

Bisect was aborted with the following:
  Step('Check bisect finished on revision chromium@470539,skia@ca572f9c90.fetch file ca572f9c90e1187913423901bff783f3462478b9:DEPS') failed with return_code 1


Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : memory.top_10_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:skia:effective_size_avg/background/after_http_yandex_ru_touchsearch_text_science

Revision                             Result                N
chromium@470467                      260496 +- 0.0         14      good
chromium@470504                      197249 +- 231833      14      good
chromium@470522                      190345 +- 229572      14      good
chromium@470531                      190459 +- 229255      14      good
chromium@470536                      189002 +- 226982      14      good
chromium@470538                      181478 +- 264269      21      good
chromium@470539                      189799 +- 231248      14      good
chromium@470539,skia@ca572f9c90      182779 +- 263292      20      good
chromium@470540                      263544 +- 122985      14      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 memory.top_10_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979256326169495696

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5270666615455744


| 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!
Project Member

Comment 5 by 42576172...@developer.gserviceaccount.com, May 19 2017

Mergedinto: 721238
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : yhirano
  Commit : 91088a195969f5af61f404c9f02edc622cbe373a
  Date   : Wed May 10 05:49:31 2017
  Subject: Add Field Trial Testing Configuration for MojoLoading

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : memory.top_10_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:skia:effective_size_avg/background/after_http_yandex_ru_touchsearch_text_science
  Change       : 1.29% | 260496.0 -> 257127.555556

Revision             Result                N
chromium@470467      260496 +- 0.0         14      good
chromium@470486      260496 +- 0.0         14      good
chromium@470488      260496 +- 0.0         9       good
chromium@470489      260496 +- 0.0         9       good
chromium@470490      258479 +- 120329      9       bad       <--
chromium@470496      263544 +- 122985      14      bad
chromium@470504      262548 +- 124346      14      bad
chromium@470540      257128 +- 119439      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 memory.top_10_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979193770477329712

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5270666615455744


| 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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