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Issue metadata

Status: Duplicate
Merged: issue 699130
Owner: ----
Closed: Mar 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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1% regression in memory.top_10_mobile_stress at 454972:455031

Project Member Reported by hjd@chromium.org, Mar 13 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Mar 13 2017

Mergedinto: 699130
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Herb Derby
  Commit : 01254bcf222a7806afbfbcb9c7fe13cc522448b3
  Date   : Fri Mar 03 21:11:08 2017
  Subject: Use an exponential growth strategy for extra blocks.

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : memory.top_10_mobile_stress
  Metric       : memory:chrome:all_processes:reported_by_chrome:skia:effective_size_avg/foreground/http_m_intl_taobao_com_group_purchase_html
  Change       : 0.70% | 39668.0 -> 39944.0

Revision                             Result              N
chromium@454651                      39668.0 +- 0.0      6      good
chromium@454687                      39668.0 +- 0.0      6      good
chromium@454692                      39668.0 +- 0.0      6      good
chromium@454693                      39668.0 +- 0.0      6      good
chromium@454693,skia@767c7e7a0b      39668.0 +- 0.0      6      good
chromium@454693,skia@e459afd6ce      39668.0 +- 0.0      6      good
chromium@454693,skia@374a0178cf      39668.0 +- 0.0      6      good
chromium@454693,skia@baf06bc89a      39668.0 +- 0.0      6      good
chromium@454693,skia@01254bcf22      39944.0 +- 0.0      6      bad       <--
chromium@454694                      39944.0 +- 0.0      6      bad
chromium@454696                      39944.0 +- 0.0      6      bad
chromium@454705                      39944.0 +- 0.0      6      bad
chromium@454722                      39944.0 +- 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_stress

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8985228818924465200

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5829157105172480


| 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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