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Issue 708639 link

Starred by 2 users

Issue metadata

Status: Duplicate
Merged: issue 708644
Owner: ----
Closed: Apr 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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1.5%-3.7% regression in memory.top_10_mobile at 460776:460828

Project Member Reported by pmeenan@chromium.org, Apr 5 2017

Issue description

See the link to graphs below.
 
Mergedinto: 708644
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : tzik
  Commit : e5de8d551e80115b21e0e3ca7d5451d3cee6f3ba
  Date   : Thu Mar 30 18:05:46 2017
  Subject: Clear PostTaskAndReply task on the destination thread

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : memory.top_10_mobile
  Metric       : memory:chrome:all_processes:reported_by_os:system_memory:native_heap:proportional_resident_size_avg/background/after_http_m_youtube_com_results_q_science
  Change       : 2.61% | 37252988.4444 -> 38223968.0

Revision             Result                   N
chromium@460775      37252988 +- 1683803      9       good
chromium@460802      37062978 +- 2555080      9       good
chromium@460815      36822451 +- 1854735      9       good
chromium@460819      37254923 +- 1418860      9       good
chromium@460820      37095405 +- 1377142      9       good
chromium@460821      38194433 +- 2512034      14      bad       <--
chromium@460822      38534241 +- 1185326      9       bad
chromium@460828      38223968 +- 1708203      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/8983135241855626912

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4541797113528320


| 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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