New issue
Advanced search Search tips

Issue 735675 link

Starred by 1 user

Issue metadata

Status: WontFix
Merged: issue 734700
Owner: ----
Closed: Jun 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



Sign in to add a comment

8.4%-16.5% regression in system_health.memory_mobile at 479754:479813

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

Issue description

See the link to graphs below.
 

Comment 1 by lanwei@chromium.org, Jun 21 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=735675

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjviYqQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg9uPD7QgM


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

android-webview-nexus5X
android-webview-nexus6
Project Member

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

Mergedinto: 734700
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Marijn Kruisselbrink
  Commit : 469805742123ec65bdeea766d8960c5abd7f82e8
  Date   : Thu Jun 15 19:33:41 2017
  Subject: If the file to rename doesn't exist, return OK immediately.

Bisect Details
  Configuration: android_webview_arm64_aosp_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:webview:all_processes:reported_by_os:system_memory:java_heap:proportional_resident_size_avg/load_media/load_media_soundcloud
  Change       : 6.96% | 6476458.66667 -> 6025557.33333

Revision             Result                  N
chromium@479753      6476459 +- 72446.3      6      good
chromium@479778      6529365 +- 46378.6      6      good
chromium@479782      6548821 +- 55156.8      6      good
chromium@479784      6605483 +- 102877       6      good
chromium@479785      6092459 +- 46106.5      6      bad       <--
chromium@479791      6068224 +- 26066.8      6      bad
chromium@479803      6025557 +- 50450.4      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 --story-filter=load.media.soundcloud system_health.memory_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976141104775683296

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5496309944942592


| 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!
Cc: chiniforooshan@chromium.org
Status: WontFix (was: Duplicate)
The graph has a land-revert pattern and also the culprit that the bisect found actually improves the metric. So, I think this is not related to 734700 and probably should be ignored. Please change if you disagree.

Sign in to add a comment