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Issue metadata

Status: Duplicate
Merged: issue 682701
Owner: ----
Closed: Jan 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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20.3% regression in memory.top_10_mobile at 444473:444519

Project Member Reported by mustaq@chromium.org, Jan 20 2017

Issue description

See the link to graphs below.
 

Comment 1 by mustaq@chromium.org, Jan 20 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=683375

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg4IDRgwgM


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

android-nexus6
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jan 20 2017

Mergedinto: 682701
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : zqzhang
  Commit : a66fe8713400ed760cd5d78931e536f33c5828d5
  Date   : Wed Jan 18 22:36:39 2017
  Subject: [Media>UI] Make ideal media image size independent of screen density

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : memory.top_10_mobile
  Metric       : memory:chrome:all_processes:reported_by_os:system_memory:java_heap:proportional_resident_size_avg/background/after_http_search_yahoo_com_search__ylt_p_google
  Change       : 10.39% | 10065920.0 -> 11111424.0

Revision             Result                   N
chromium@444472      10065920 +- 45954.7      6      good
chromium@444496      10064213 +- 33610.5      6      good
chromium@444508      10061483 +- 39571.1      6      good
chromium@444514      10120533 +- 29203.5      6      good
chromium@444517      10174464 +- 54339.6      6      good
chromium@444518      11229867 +- 23648.3      6      bad       <--
chromium@444519      11111424 +- 22434.7      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-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http.search.yahoo.com.search..ylt.p.google memory.top_10_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8989911137026654848

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6459685508481024


| 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 Tests>AutoBisect.  Thank you!

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