New issue
Advanced search Search tips
Note: Color blocks (like or ) mean that a user may not be available. Tooltip shows the reason.

Issue 762255 link

Starred by 1 user

Issue metadata

Status: Duplicate
Merged: issue 762042
Owner:
Closed: Sep 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



Sign in to add a comment

7.5%-10.2% regression in system_health.memory_mobile at 499407:499412

Project Member Reported by briander...@chromium.org, Sep 5 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=762255

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=38108772a7d5087a1f6c5574d0c1f9299dcd04dd8ecfde4e49c504c726c9b58e


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

android-webview-nexus6
Cc: m...@chromium.org
Owner: m...@chromium.org
Status: Assigned (was: Untriaged)

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

Hi miu@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 : Yuri Wiitala
  Commit : f08627c6c435e0bb3369325563465933955bc71e
  Date   : Sun Sep 03 02:00:22 2017
  Subject: [Reland] Video Capture: Support for populating frames via writable Mojo shmem.

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:webview:all_processes:reported_by_chrome:v8:effective_size_avg/load_search/load_search_ebay
  Change       : 8.80% | 3699662.57143 -> 4024989.42857

Revision             Result                  N
chromium@499406      3699663 +- 545669       14      good
chromium@499407      3801740 +- 704525       14      bad       <--
chromium@499411      4025498 +- 3629.95      9       bad
chromium@499412      4024989 +- 4668.91      14      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.ebay system_health.memory_mobile

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8969253190632561136


For feedback, file a bug with component Speed>Bisection

Comment 4 by m...@chromium.org, Sep 6 2017

Mergedinto: 762042
Status: Duplicate (was: Assigned)
 Issue 762254  has been merged into this issue.

Sign in to add a comment