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Issue 691033 3.8%-7.5% regression in system_health.memory_mobile at 449423:449504
Starred by 1 user Reported by majidvp@google.com, Feb 10 Back to list
Status: Untriaged
Owner:
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=691033

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgmKbKuwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgmJLn-AgM


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

android-webview-nexus6
Cc: japhet@chromium.org
Owner: japhet@chromium.org

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

Hi japhet@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 : japhet
  Commit : ffefd4173f178d76449fc51f5dc22bfd7e120e03
  Date   : Thu Feb 09 22:25:56 2017
  Subject: Actually handle the Vary header in blink, rather than punting on sight.

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_media/load_media_9gag
  Change       : 6.54% | 14134364.8889 -> 15091096.0

Revision             Result                   N
chromium@449422      14134365 +- 272606       9       good
chromium@449430      14102072 +- 354500       9       good
chromium@449434      14035520 +- 377421       9       good
chromium@449436      14226880 +- 1122881      14      good
chromium@449437      14057307 +- 548933       9       good
chromium@449438      14917434 +- 1250773      9       bad       <--
chromium@449504      15091096 +- 211403       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.9gag system_health.memory_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8988018991448462768

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4984018078007296


| 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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