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Issue 708648 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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1.7%-3.3% regression in system_health.memory_mobile at 460801:460837

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_webview_arm64_aosp_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:webview:all_processes:reported_by_os:system_memory:native_heap:proportional_resident_size_avg/browse_news/browse_news_qq
  Change       : 1.95% | 37843472.0 -> 38580752.0

Revision             Result                  N
chromium@460800      37843472 +- 664918      6      good
chromium@460819      37731856 +- 512890      6      good
chromium@460820      37528421 +- 571122      6      good
chromium@460821      38746640 +- 561576      6      bad       <--
chromium@460822      38593381 +- 536276      6      bad
chromium@460824      39198907 +- 930598      6      bad
chromium@460828      38779749 +- 876255      6      bad
chromium@460837      38580752 +- 400131      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=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.news.qq system_health.memory_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8983135104209277344

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6657997293486080


| 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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