Issue 734711 link

Starred by 1 user

Issue metadata

Status:	WontFix
Owner:	----
Closed:	Aug 2017
Cc:	chiniforooshan@chromium.org e...@chromium.org
EstimatedDays:	----
NextAction:	----
OS:	----
Pri:	2
Type:	Bug-Regression
Performance-Sheriff M-61

29.8%-62.7% regression in blink_perf.layout at 479376:479511

Project Member Reported by chiniforooshan@chromium.org, Jun 19 2017

Issue description

See the link to graphs below.

Comment 1 by chiniforooshan@chromium.org, Jun 19 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=734711

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg9v6D-ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg9rCRuAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg9pD85AgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgtt3TogoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgtqP63AkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg9qCJigoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgtrrq6AsM


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

chromium-rel-mac11-air
chromium-rel-mac11-pro

Project Member

Comment 2 by 42576172...@developer.gserviceaccount.com, Jun 19 2017

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976330693652276240

Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jun 19 2017

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976330658690519968

Project Member

Comment 4 by 42576172...@developer.gserviceaccount.com, Jun 20 2017


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

Bisect Details
  Configuration: mac_pro_perf_bisect
  Benchmark    : blink_perf.layout
  Metric       : long-line-nowrap-collapse/long-line-nowrap-collapse

Revision             Result                  N
chromium@479381      25.9655 +- 1.40897      20      good
chromium@479493      26.1485 +- 1.5158       20      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 blink_perf.layout

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976330693652276240

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5868362023829504


| 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 5 by 42576172...@developer.gserviceaccount.com, Jun 20 2017

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976309767431339472

Project Member

Comment 6 by 42576172...@developer.gserviceaccount.com, Jun 20 2017


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

Bisect Details
  Configuration: mac_pro_perf_bisect
  Benchmark    : blink_perf.layout
  Metric       : long-line-nowrap-spans-collapse/long-line-nowrap-spans-collapse

Revision             Result                  N
chromium@479381      26.6562 +- 2.40501      21      good
chromium@479493      26.682 +- 1.81681       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 blink_perf.layout

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976330658690519968

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5882870909894656


| 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 7 by 42576172...@developer.gserviceaccount.com, Jun 20 2017

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976302217296861712

Project Member

Comment 8 by 42576172...@developer.gserviceaccount.com, Jun 20 2017

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976294146209795056

Project Member

Comment 9 by 42576172...@developer.gserviceaccount.com, Jun 20 2017


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

Bisect Details
  Configuration: mac_pro_perf_bisect
  Benchmark    : blink_perf.layout
  Metric       : long-line-nowrap-collapse/long-line-nowrap-collapse

Revision             Result                  N
chromium@479381      26.0061 +- 2.3573       21      good
chromium@479493      26.0694 +- 2.78958      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 blink_perf.layout

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976309767431339472

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5868362023829504


| 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 10 by 42576172...@developer.gserviceaccount.com, Jun 20 2017


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

Bisect Details
  Configuration: mac_pro_perf_bisect
  Benchmark    : blink_perf.layout
  Metric       : long-line-nowrap-spans-collapse/long-line-nowrap-spans-collapse

Revision             Result                  N
chromium@479381      26.3471 +- 2.20346      21      good
chromium@479493      26.3894 +- 2.41504      20      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 blink_perf.layout

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976302217296861712

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5882870909894656


| 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 11 by 42576172...@developer.gserviceaccount.com, Jun 20 2017


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

Bisect Details
  Configuration: mac_pro_perf_bisect
  Benchmark    : blink_perf.layout
  Metric       : long-line-nowrap-spans-collapse/long-line-nowrap-spans-collapse

Revision             Result                  N
chromium@479381      26.5747 +- 1.90047      20      good
chromium@479493      26.5648 +- 1.52334      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 blink_perf.layout

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976294146209795056

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6396244324253696


| 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 12 by 42576172...@developer.gserviceaccount.com, Jun 20 2017

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976272018000671952

Project Member

Comment 13 by 42576172...@developer.gserviceaccount.com, Jun 20 2017


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

Bisect Details
  Configuration: mac_pro_perf_bisect
  Benchmark    : blink_perf.layout
  Metric       : long-line-nowrap-spans-collapse/long-line-nowrap-spans-collapse

Revision             Result                  N
chromium@479381      26.4377 +- 2.25921      21      good
chromium@479493      26.6429 +- 3.78193      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 blink_perf.layout

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976272018000671952

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6396244324253696


| 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!

Comment 14 by sullivan@chromium.org, Aug 17 2017

Status: WontFix (was: Untriaged)

Several bisects couldn't repro.

►

Issue 734711 link

Issue metadata

29.8%-62.7% regression in blink_perf.layout at 479376:479511

Issue description

Comment 1 by chiniforooshan@chromium.org, Jun 19 2017

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Comment 2 by 42576172...@developer.gserviceaccount.com, Jun 19 2017

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Comment 3 by 42576172...@developer.gserviceaccount.com, Jun 19 2017

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Comment 4 by 42576172...@developer.gserviceaccount.com, Jun 20 2017

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Comment 11 by 42576172...@developer.gserviceaccount.com, Jun 20 2017

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Comment 12 by 42576172...@developer.gserviceaccount.com, Jun 20 2017

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Comment 13 by 42576172...@developer.gserviceaccount.com, Jun 20 2017

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Comment 14 by sullivan@chromium.org, Aug 17 2017

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