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Issue 735923 link

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Issue metadata

Status: WontFix
Owner: ----
Closed: Sep 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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14.1% regression in loading.desktop at 479600:479666

Project Member Reported by kraynov@chromium.org, Jun 22 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=735923

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgtp_X5QoM


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

chromium-rel-mac11-air
Project Member

Comment 4 by 42576172...@developer.gserviceaccount.com, Jun 22 2017


=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: mac_air_perf_bisect
  Benchmark    : loading.desktop
  Metric       : cpuTimeToFirstMeaningfulPaint_avg/pcv1-cold/FlipKart

Revision             Result                  N
chromium@479599      699.272 +- 136.243      21      good
chromium@479666      677.74 +- 141.351       21      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 --story-filter=FlipKart loading.desktop

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976083976921553680

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6079102915706880


| 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!
Project Member

Comment 6 by 42576172...@developer.gserviceaccount.com, Jun 22 2017


=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: mac_air_perf_bisect
  Benchmark    : loading.desktop
  Metric       : cpuTimeToFirstMeaningfulPaint_avg/pcv1-cold/FlipKart

Revision             Result                  N
chromium@479511      690.507 +- 120.89       21      good
chromium@479666      691.649 +- 132.259      21      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 --story-filter=FlipKart loading.desktop

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976083943537802000

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5678117252759552


| 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!
Project Member

Comment 8 by 42576172...@developer.gserviceaccount.com, Jun 23 2017


=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: mac_air_perf_bisect
  Benchmark    : loading.desktop
  Metric       : cpuTimeToFirstMeaningfulPaint_avg/pcv1-cold/FlipKart

Revision             Result                  N
chromium@479599      679.595 +- 142.721      21      good
chromium@479666      677.566 +- 142.83       21      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 --story-filter=FlipKart loading.desktop

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976068171439949952

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6079102915706880


| 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!
Project Member

Comment 9 by 42576172...@developer.gserviceaccount.com, Jun 23 2017


=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: mac_air_perf_bisect
  Benchmark    : loading.desktop
  Metric       : cpuTimeToFirstMeaningfulPaint_avg/pcv1-cold/FlipKart

Revision             Result                  N
chromium@479511      682.863 +- 129.303      21      good
chromium@479666      693.627 +- 132.268      21      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 --story-filter=FlipKart loading.desktop

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976064398586337216

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5678117252759552


| 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!
Tried bisecting on a wider range, will WontFix if nothing comes back.
Ugh, that bisect failed, but now we have pinpoint, retrying there.

Comment 15 by dtu@chromium.org, Sep 22 2017

The start and end look a little bit different in Pinpoint, but it's within the noise. Definitely nothing on the scale of the original regression.

Comment 16 by dtu@chromium.org, Sep 22 2017

Status: WontFix (was: Untriaged)

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