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Issue metadata

Status: WontFix
Owner:
Closed: Aug 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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1.2%-2.4% regression in system_health.memory_mobile at 448117:448156

Project Member Reported by lanwei@chromium.org, Feb 7 2017

Issue description

See the link to graphs below.
 
Cc: ericrk@chromium.org
Owner: ericrk@chromium.org

=== Auto-CCing suspected CL author ericrk@chromium.org ===

Hi ericrk@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


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

Suspected Commit
  Author : ericrk
  Commit : db08f5848018102d93afbb554009292213a95c7c
  Date   : Sat Feb 04 00:37:05 2017
  Subject: Re-enable on disk program cache for Adreno 4/5xx

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:webview:all_processes:reported_by_chrome:malloc:effective_size_avg/load_search/load_search_google
  Change       : 1.64% | 22136980.4444 -> 22500972.4444

Revision             Result                  N
chromium@448118      22136980 +- 356556      9      good
chromium@448119      22705640 +- 586650      6      bad       <--
chromium@448120      22728825 +- 416541      6      bad
chromium@448121      22497052 +- 226860      6      bad
chromium@448123      22575639 +- 192590      6      bad
chromium@448128      22566908 +- 295765      6      bad
chromium@448137      22504285 +- 185729      6      bad
chromium@448156      22500972 +- 567203      9      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 --story-filter=load.search.google system_health.memory_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8988295860548943648

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5852856977981440


| 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!

Comment 4 by ericrk@chromium.org, Feb 13 2017

Status: Available (was: Untriaged)

Comment 5 by ericrk@chromium.org, Feb 13 2017

Status: Assigned (was: Available)
Labels: Performance-Memory
erickrk: are you still working on this bug? Should we keep it open?

Comment 8 by ericrk@chromium.org, Aug 16 2017

Status: WontFix (was: Assigned)
We've re-disabled this again, so this regression should be resolved.

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