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Issue 892691 link

Starred by 1 user
Status: WontFix
Owner:
wangxianzhu@chromium.org
Closed: Oct 9
Cc:
wangxianzhu@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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17.4% regression in rasterize_and_record_micro.top_25 at 596878:596951

Project Member Reported by wangxianzhu@chromium.org, Oct 5 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Oct 5 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=892691

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=be74c94deff8c0d241d0f0a0d6a6fe23e0d2cde29820e4542ddae92202047434


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

mac-10_12_laptop_low_end-perf

rasterize_and_record_micro.top_25 - Benchmark documentation link:
  None
Project Member

Comment 5 by 42576172...@developer.gserviceaccount.com, Oct 5

Owner: wangxianzhu@chromium.org
Status: Assigned (was: Untriaged)
📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/13ffdae4e40000

[PE] Improve precision of GeometryMapper for 2d translations by wangxianzhu@chromium.org
https://chromium.googlesource.com/chromium/src/+/4b767df9fc88b55eee8c3cffe6245101bd1248e0
record_time: 0.0233 → 0.0269 (+0.0036)

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

Benchmark documentation link:
  None
Project Member

Comment 6 by 42576172...@developer.gserviceaccount.com, Oct 5 

📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/117fa3fce40000

[PE] Improve precision of GeometryMapper for 2d translations by wangxianzhu@chromium.org
https://chromium.googlesource.com/chromium/src/+/4b767df9fc88b55eee8c3cffe6245101bd1248e0
record_time: 0.0234 → 0.0265 (+0.0031)

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

Benchmark documentation link:
  None
Project Member

Comment 7 by 42576172...@developer.gserviceaccount.com, Oct 5 

📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/11a55604e40000

[PE] Improve precision of GeometryMapper for 2d translations by wangxianzhu@chromium.org
https://chromium.googlesource.com/chromium/src/+/4b767df9fc88b55eee8c3cffe6245101bd1248e0
record_time: 0.01311 → 0.0149 (+0.001789)

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

Comment 8 by wangxianzhu@chromium.org, Oct 9

Status: WontFix (was: Assigned)
record_time is a micro benchmark mainly showing the performance of paint_chunks_to_cc_layer. In this case, the time is tiny in a normal recording (0.026ms vs 0.27ms to 0.90ms with different micro benchmark settings).
►

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