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Issue metadata

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



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1.3%-4% regression in system_health.memory_mobile at 482763:483076

Project Member Reported by primiano@chromium.org, Aug 10 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Aug 10 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=754236

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=31252432481f650a55ba1da8ac023c409c8cdcc9f313b9aa3e97691e970eb159


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

android-nexus5
android-nexus5X
android-nexus6
android-webview-nexus5X
android-webview-nexus6
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Aug 10 2017

Mergedinto: 750870
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Christopher Cameron
  Commit : 1894d423068be735560e0171922c833c4091b5d1
  Date   : Wed Jun 28 06:31:03 2017
  Subject: color: Enable color correct rendering by default

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : memory.top_10_mobile
  Metric       : memory:webview:all_processes:reported_by_os:system_memory:native_heap:proportional_resident_size_avg/foreground/http_yandex_ru_touchsearch_text_science
  Change       : 4.94% | 44386210.6667 -> 46578082.6667

Revision             Result                   N
chromium@482896      44386211 +- 671062       6      good
chromium@482902      44269304 +- 971154       6      good
chromium@482903      44436045 +- 446272       6      good
chromium@482904      46474317 +- 684398       6      bad       <--
chromium@482905      46203299 +- 589459       6      bad
chromium@482907      46578083 +- 1026224      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 memory.top_10_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8971644177561621536


For feedback, file a bug with component Speed>Bisection
This change landed ~1.5 months ago and is already in beta.

Also, many of these graphs have completely resolved.

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