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Issue metadata

Status: Duplicate
Merged: issue 626274
Owner:
Last visit > 30 days ago
Closed: Jul 2016
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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22.3% regression in blink_perf.parser at 403881:403889

Project Member Reported by alexclarke@chromium.org, Jul 7 2016

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=626341

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg0v_gvgoM


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

android-nexus5X
Mergedinto: 626274
Status: Duplicate (was: Assigned)

===== BISECT JOB RESULTS =====
Status: completed


===== SUSPECTED CL(s) =====
Subject : Activate complex text path on Android
Author  : drott
Commit description:
  
In Chromium commit 10749067720a341 catapult was rolled, switching to
default teardowns between pageset repeats, compare [1]. Activating
complex text on Android again after this change in order to see how
measurements are affected by this. If no memory regression shows up in
the memory health measurements for memory pagesets this would indicate
that we may have a memory-leakage over time problem in webview
single-process mode but no issues in the usual tab process lifecycle on
Android. Activating and TBR'ing to collect bot results, potentially
reverting later if needed for further investigation.

[1] https://github.com/catapult-project/catapult/issues/2294

BUG=577306
TBR=eae

Review-Url: https://codereview.chromium.org/2123653005
Cr-Commit-Position: refs/heads/master@{#403884}
Commit  : 5009e3effbb04c74140d262fb71bc51cbf38913a
Date    : Wed Jul 06 11:39:32 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev  N  Good?
chromium@403880  13611.1  57.0768  5  good
chromium@403883  13701.2  72.5294  5  good
chromium@403884  16752.5  61.6628  5  bad    <--
chromium@403885  16715.1  42.5062  5  bad
chromium@403889  16341.6  37.7048  5  bad

Bisect job ran on: android_nexus5X_perf_bisect
Bug ID: 626341

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests blink_perf.parser
Test Metric: html5-full-render/html5-full-render
Relative Change: 20.06%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus5X_perf_bisect/builds/304
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9007788724744872976


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5829136161964032

| 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!

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