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Issue metadata

Status: Duplicate
Merged: issue 735071
Owner: ----
Closed: Jun 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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1.9%-3% regression in memory.top_10_mobile at 480313:480379

Project Member Reported by lanwei@chromium.org, Jun 21 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jun 22 2017

Mergedinto: 735071
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Yutaka Hirano
  Commit : 84047549ac37bab70d7306566c912e59131f3e1f
  Date   : Mon Jun 19 04:16:15 2017
  Subject: [Loading] Save one post-task when the data pipe is ready on arrival

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : memory.top_10_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:cc:effective_size_avg/foreground/http_yandex_ru_touchsearch_text_science
  Change       : 3.00% | 2182636.0 -> 2248172.0

Revision             Result              N
chromium@480312      2182636 +- 0.0      6      good
chromium@480330      2182636 +- 0.0      6      good
chromium@480339      2182636 +- 0.0      6      good
chromium@480341      2182636 +- 0.0      6      good
chromium@480342      2248172 +- 0.0      6      bad       <--
chromium@480344      2248172 +- 0.0      6      bad
chromium@480348      2248172 +- 0.0      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 memory.top_10_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976142186152131376

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4827651182690304


| 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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