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Issue metadata

Status: Duplicate
Merged: issue 696070
Owner: ----
Closed: Mar 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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6.3% regression in memory.top_10_mobile_stress at 452270:452341

Project Member Reported by benhenry@google.com, Mar 8 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=699768

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxMGNqQoM


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

android-webview-nexus6
Project Member

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


=== BISECT JOB RESULTS ===
Bisect was unable to run to completion

Error: BUILD_FAILURE

The bisect was able to narrow the range, you can try running with:
  good_revision: aaa73ea0f5ac4aadf0f30e12a3e86fa3388ec1be
  bad_revision : 169beb0367bc0ca03c4cb0baa18d183740f157d0

If failures persist contact the team (see below) and report the error.


Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : memory.top_10_mobile_stress
  Metric       : memory:webview:all_processes:reported_by_chrome:skia:effective_size_avg/background/after_https_mobile_twitter_com_justinbieber_skip_interstitial_true

Revision             Result                  N
chromium@452269      814501 +- 247249        6      good
chromium@452305      769360 +- 0.0           6      good
chromium@452314      814845 +- 249130        6      good
chromium@452317      769360 +- 0.0           6      good
chromium@452319      1041569 +- 28548.1      9      bad
chromium@452323      1045924 +- 0.0          6      bad
chromium@452341      1040919 +- 27411.7      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-webview --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/8985648547685116864

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6719992176836608


| 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!
Project Member

Comment 5 by 42576172...@developer.gserviceaccount.com, Mar 10 2017

Mergedinto: 696070
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : fmalita
  Commit : 6f057b93cf230adadd55af0490c836d91ba6e1fd
  Date   : Thu Feb 23 00:55:00 2017
  Subject: Remove the text blob cache

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : memory.top_10_mobile_stress
  Metric       : memory:webview:all_processes:reported_by_chrome:skia:effective_size_avg/background/after_https_mobile_twitter_com_justinbieber_skip_interstitial_true
  Change       : 28.96% | 811024.0 -> 1045924.0

Revision             Result                N
chromium@452317      811024 +- 228203      6      good
chromium@452318      1045924 +- 0.0        6      bad       <--
chromium@452319      1045924 +- 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-webview --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/8985502221060099088

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6653103429910528


| 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!
Labels: Performance-Memory
Labels: -Performance-Memory

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