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Issue 731879 link

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Issue metadata

Status: Duplicate
Merged: issue 725945
Owner: ----
Closed: Jun 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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4.9% regression in memory.desktop at 473972:474124

Project Member Reported by erikc...@chromium.org, Jun 9 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=731879

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxqH66QoM


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

chromium-rel-win10
Regression in "ChromiumPerf/chromium-rel-win10/memory.desktop / memory:chrome:all_processes:reported_by_chrome:cc:effective_size_avg"
Mergedinto: 725945
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : danakj
  Commit : 4188df86ebb468a6723b1c5855c75be8e4ae91a3
  Date   : Tue May 23 20:05:29 2017
  Subject: Avoid quickReject() when rastering a cc::DrawingDisplayItem.

Bisect Details
  Configuration: winx64_10_perf_bisect
  Benchmark    : memory.desktop
  Metric       : memory:chrome:all_processes:reported_by_chrome:cc:effective_size_avg/TrivialBlinkingCursorPageSharedPageState
  Change       : 4.94% | 2654208.0 -> 2785280.0

Revision             Result              N
chromium@473971      2654208 +- 0.0      6      good
chromium@474010      2654208 +- 0.0      6      good
chromium@474013      2654208 +- 0.0      6      good
chromium@474014      2785280 +- 0.0      6      bad       <--
chromium@474015      2785280 +- 0.0      6      bad
chromium@474020      2785280 +- 0.0      6      bad
chromium@474029      2785280 +- 0.0      6      bad
chromium@474048      2785280 +- 0.0      6      bad
chromium@474124      2785280 +- 0.0      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=TrivialBlinkingCursorPageSharedPageState memory.desktop

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977233362045930048

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6619382068805632


| 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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