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Issue 893834 link

Starred by 1 user
Status: Closed
Owner:
ksolt@chromium.org
Closed: Oct 31
Cc:
ksolt@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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7.2%-174.1% regression in rendering.desktop/thread_total_all_cpu_time_per_frame at 595537:595722

Project Member Reported by m...@chromium.org, Oct 9 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Oct 9 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=893834

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=bcb2dc1bdb72f1dae021ab5052f319a8e5d07ad39140f634a9dfd07fbf1ba802


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

Win 7 Perf
linux-perf

rendering.desktop - Benchmark documentation link:
  https://bit.ly/rendering-benchmarks
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Oct 10 

📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/1794b85ae40000

Comment 5 by m...@chromium.org, Oct 10

Cc: -m...@chromium.org
Project Member

Comment 6 by 42576172...@developer.gserviceaccount.com, Oct 11

Cc: ksolt@chromium.org
Owner: ksolt@chromium.org
Status: Assigned (was: Untriaged)
📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/11734cbce40000

Removed several levels of calls to RenderWidget::DidReceiveCompositorFrameAck. by ksolt@chromium.org
https://chromium.googlesource.com/chromium/src/+/4d60b40e28c03273690c45f70e6fd9a53f8449f4
queueing_durations: 0.04825 → 0.1088 (+0.06055)

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions

Benchmark documentation link:
  https://bit.ly/rendering-benchmarks

Comment 9 by ksolt@chromium.org, Oct 31

Status: Closed (was: Assigned)
The regression was mostly about the increase in the average task queuing time, but this is because the CL removed an unnecessary task which ran very often and had a short queuing time.
Project Member

Comment 10 by 42576172...@developer.gserviceaccount.com, Oct 31 

📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/13634ae5e40000

Removed several levels of calls to RenderWidget::DidReceiveCompositorFrameAck. by ksolt@chromium.org
https://chromium.googlesource.com/chromium/src/+/4d60b40e28c03273690c45f70e6fd9a53f8449f4
queueing_durations: 0.0433 → 46.98 (+46.93)

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions

Benchmark documentation link:
  https://bit.ly/rendering-benchmarks
►

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