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Issue 708646 link

Starred by 2 users

Issue metadata

Status: Duplicate
Merged: issue 708578
Owner: ----
Closed: Apr 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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49.4%-158.6% regression in memory.long_running_idle_gmail_tbmv2 at 460835:460958

Project Member Reported by pmeenan@chromium.org, Apr 5 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=708646

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgnMKHjwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg3L7poQoM


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

chromium-rel-mac11-pro
Mergedinto: 708578
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : erikchen
  Commit : 26bd6d86d59d2c7227e4359d91852426c80134e2
  Date   : Fri Mar 31 00:10:52 2017
  Subject: [Reland #1] macOS: Fix a bug in logic to get all memory regions.

Bisect Details
  Configuration: mac_pro_perf_bisect
  Benchmark    : memory.long_running_idle_gmail_background_tbmv2
  Metric       : memory:chrome:renderer_processes:reported_by_os:system_memory:private_dirty_size_avg/memory:chrome:renderer_processes:reported_by_os:system_memory:private_dirty_size_avg
  Change       : 197.31% | 85005140.3498 -> 252730408.733

Revision             Result                     N
chromium@460834      85005140 +- 17334015       6      good
chromium@460896      77725591 +- 5811802        6      good
chromium@460927      81691658 +- 10372227       6      good
chromium@460943      80427624 +- 7832298        6      good
chromium@460944      252276645 +- 17766747      6      bad       <--
chromium@460945      250374240 +- 10082053      6      bad
chromium@460947      251792017 +- 8403838       6      bad
chromium@460951      250494660 +- 11836820      6      bad
chromium@460958      252730409 +- 15238254      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests memory.long_running_idle_gmail_background_tbmv2

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8983135131362196064

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4517501288841216


| 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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