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Issue metadata

Status: Duplicate
Merged: issue 842214
Owner: ----
Closed: May 2018
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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4.5%-31.9% regression in memory.dual_browser_test at 1525823319:1525839022

Project Member Reported by ulan@google.com, May 14 2018

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, May 14 2018

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=842611

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=f3136cedd8fe87b561ca99703eb3610f304665e4439fc7037755562d04685532


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

perf-go-phone-1024
perf-go-webview-phone
perf-monochrome-n-phone
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, May 14 2018

Mergedinto: 842214
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : jgruber
  Commit : e0c3f6d6ca005185e537fb85bbe841fe5dae5240
  Date   : Tue May 08 11:21:37 2018
  Subject: Disable embedded builtins

Bisect Details
  Configuration: go-phone-1024-perf-bisect
  Benchmark    : memory.top_10_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/foreground/http_m_intl_taobao_com_group_purchase_html
  Change       : 36.67% | 1731701.33333 -> 2366721.33333

Revision                                                     Result                  N
android-chrome@be902aa047                                    1731701 +- 76713.5      6      good
android-chrome@be902aa047,chromium@556849                    1830824 +- 47.9333      6      good
android-chrome@be902aa047,chromium@556890                    1806081 +- 60557.9      6      good
android-chrome@be902aa047,chromium@556893                    1781286 +- 70766.9      6      good
android-chrome@be902aa047,chromium@556894                    1800493 +- 58499.9      6      good
android-chrome@be902aa047,chromium@556894,v8@855850eb7f      1824971 +- 8474.44      6      good
android-chrome@be902aa047,chromium@556894,v8@e0c3f6d6ca      2423149 +- 104.328      6      bad       <--
android-chrome@be902aa047,chromium@556894,v8@c34562803e      2363817 +- 145674       6      bad
android-chrome@be902aa047,chromium@556894,v8@9f5018c9b0      2304299 +- 184181       6      bad
android-chrome@be902aa047,chromium@556894,v8@61af2762ef      2311556 +- 172970       6      bad
android-chrome@be902aa047,chromium@556895                    2363719 +- 145925       6      bad
android-chrome@be902aa047,chromium@556901                    2423221 +- 100.635      6      bad
android-chrome@be902aa047,chromium@556911                    2313280 +- 170243       6      bad
android-chrome@1390428f76                                    2366721 +- 138573       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-chrome --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http.m.intl.taobao.com.group.purchase.html 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/8946562605363049744


For feedback, file a bug with component Speed>Bisection

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