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Issue 645548 link

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Issue metadata

Status: Duplicate
Merged: issue 643211
Owner:
Last visit > 30 days ago
Closed: Sep 2016
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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25.3%-33.7% regression in memory.long_running_idle_gmail_tbmv2 at 415249:415291

Project Member Reported by rsch...@chromium.org, Sep 9 2016

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=645548

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgoZvWpgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgocKvpAsM


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

chromium-rel-win7-gpu-ati
chromium-rel-win7-gpu-intel
Mergedinto: 643211
Status: Duplicate (was: Assigned)

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


===== SUSPECTED CL(s) =====
Subject : scheduler: Throttle timers in out-of-view frames
Author  : skyostil
Commit description:
  
Throttle timer tasks to 1 Hz in out-of-view or invisible frames. This
reduces the power consumption and performance impact of these tasks,
which are not likely having any visible effect on the page anyway.

BUG= 616519 

Review-Url: https://codereview.chromium.org/2023033003
Cr-Commit-Position: refs/heads/master@{#415278}
Commit  : 7fec349e59e40dd9beee5f7eafa9e0db5c4ac1bd
Date    : Tue Aug 30 12:47:29 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev    N  Good?
chromium@415248  2.86154  0.289058   8  good
chromium@415269  2.78588  0.325641   5  good
chromium@415275  2.76587  0.257934   5  good
chromium@415277  2.60252  0.0847604  5  good
chromium@415278  3.51262  0.278655   5  bad    <--
chromium@415279  3.57641  0.14539    5  bad
chromium@415289  3.51583  0.229227   8  bad

Bisect job ran on: winx64intel_perf_bisect
Bug ID: 645548

Test Command: src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --also-run-disabled-tests memory.long_running_idle_gmail_tbmv2
Test Metric: v8-gc-scavenger_avg/v8-gc-scavenger_avg
Relative Change: 28.65%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/winx64intel_perf_bisect/builds/1167
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9001972677471224624


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5901174287368192

| 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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