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Issue metadata

Status: Duplicate
Merged: issue 855464
Owner: ----
Closed: Jun 2018
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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2% regression in system_health.memory_mobile at 1527777591:1530148789

Project Member Reported by nzolghadr@chromium.org, Jun 28 2018

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Jun 28 2018

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=857584

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=c9c01560097f634a6a895ac385d67c0a6f2e84a79e370df393ec47c09db41a8f


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

perf-go-webview-phone
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jun 29 2018

Mergedinto: 855464
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Ben Wagner
  Commit : d34b8a80f30a176ecf1c01ae7220b5f8af636eb8
  Date   : Wed Jun 13 15:37:56 2018
  Subject: Always FreeType autohint when requested.

Bisect Details
  Configuration: go-webview-phone-perf-bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:webview:all_processes:reported_by_os:system_memory:proportional_resident_size_avg/browse_media/browse_media_flickr_infinite_scroll
  Change       : 3.36% | 106399092.0 -> 109975229.333

Revision                                                       Result                   N
android-chrome@d79bf90511                                      106399092 +- 418173      6      good
android-chrome@e90c9c80c5                                      107870227 +- 449944      6      good
android-chrome@cd7b16c40c                                      107140627 +- 173287      6      good
android-chrome@cd7b16c40c,chromium@567123                      107224083 +- 167943      6      good
android-chrome@cd7b16c40c,chromium@567124                      107421203 +- 224033      6      good
android-chrome@cd7b16c40c,chromium@567124,skia@5f4b09d523      107410109 +- 286494      6      good
android-chrome@cd7b16c40c,chromium@567124,skia@dc89f192c8      107523261 +- 256980      6      good
android-chrome@cd7b16c40c,chromium@567124,skia@d34b8a80f3      110297789 +- 395044      6      bad       <--
android-chrome@cd7b16c40c,chromium@567124,skia@6fbafc0afa      109812584 +- 390312      6      bad
android-chrome@cd7b16c40c,chromium@567124,skia@f18c756360      110478525 +- 495889      6      bad
android-chrome@cd7b16c40c,chromium@567125                      109632531 +- 323909      6      bad
android-chrome@cd7b16c40c,chromium@567128                      109701821 +- 411758      6      bad
android-chrome@cd7b16c40c,chromium@567133                      110323219 +- 213797      6      bad
android-chrome@cd7b16c40c,chromium@567145                      110276968 +- 455534      6      bad
android-chrome@306d8fee9b                                      109941779 +- 206215      6      bad
android-chrome@6b97f109ea                                      109957139 +- 161177      6      bad
android-chrome@2fe77d170f                                      109956627 +- 334622      6      bad
android-chrome@56a8706b95                                      110277139 +- 601013      6      bad
android-chrome@31cb7d3927                                      109991272 +- 185861      6      bad
android-chrome@a5a5234c1c                                      110948029 +- 331914      6      bad
android-chrome@12fcaddca5                                      110249149 +- 539312      6      bad
android-chrome@8062d9e01c                                      109975229 +- 719465      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.media.flickr.infinite.scroll system_health.memory_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8942449165289474480


For feedback, file a bug with component Speed>Bisection

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