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Issue 754812 link

Starred by 1 user
Status: Duplicate
Merged: issue 754847
Owner:
fmea...@chromium.org
Closed: Sep 2017
Cc:
fmea...@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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20.7%-99.3% regression in page_cycler_v2_site_isolation.basic_oopif at 493058:493190

Project Member Reported by fmea...@chromium.org, Aug 11 2017 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Aug 11 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=754812

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=69d8391ff894c65738b5f04bf8ae2be02237ad5e57075d8bc52bbad7b064a4df


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

chromium-rel-mac12
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Aug 11 2017 


=== BISECT JOB RESULTS ===
Bisect was unable to run to completion

Error: INFRA_FAILURE

The bisect was able to narrow the range, you can try running with:
  good_revision: 3b78dd54d9897db94dd8b2968dabb765bb017ca2
  bad_revision : 07a029fbd6794c840d2c3b3331ec2a9f26ccd3b4

If failures persist contact the team (see below) and report the error.


Bisect Details
  Configuration: mac_10_12_perf_bisect
  Benchmark    : page_cycler_v2_site_isolation.basic_oopif
  Metric       : timeToFirstContentfulPaint_avg/pcv1-cold/http___www.cnn.com

Revision             Result                  N
chromium@493057      463.774 +- 172.452      14      good
chromium@493091      463.418 +- 54.7299      6       good
chromium@493124      438.131 +- 64.3049      14      bad
chromium@493190      439.73 +- 78.4301       14      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=http...www.cnn.com page_cycler_v2_site_isolation.basic_oopif

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8971531570019023216


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 5 by 42576172...@developer.gserviceaccount.com, Aug 15 2017 


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

Bisect Details
  Configuration: mac_10_12_perf_bisect
  Benchmark    : page_cycler_v2_site_isolation.basic_oopif
  Metric       : timeToFirstContentfulPaint_avg/pcv1-cold/http___www.cnn.com

Revision             Result                  N
chromium@493057      465.455 +- 184.112      21      good
chromium@493190      470.988 +- 228.227      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=http...www.cnn.com page_cycler_v2_site_isolation.basic_oopif

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8971184193126259168


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 7 by 42576172...@developer.gserviceaccount.com, Sep 5 2017

Mergedinto: 754847
Status: Duplicate (was: Assigned)

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

Suspected Commit
  Author : Scott Haseley
  Commit : c3f876b18c07c50b360b93fb91ec67549b58deb8
  Date   : Thu Aug 10 00:40:36 2017
  Subject: Use swap time for all first paint times in TBM, UMA, UKM & web perf API

Bisect Details
  Configuration: winx64_high_dpi_perf_bisect
  Benchmark    : page_cycler_v2_site_isolation.basic_oopif
  Metric       : timeToFirstContentfulPaint_avg/pcv1-cold/http___www.ebay.com
  Change       : 7.88% | 611.76175 -> 659.96

Revision             Result                  N
chromium@493083      611.762 +- 90.425       8       good
chromium@493165      632.425 +- 16.4347      8       good
chromium@493186      632.716 +- 10.7839      11      good
chromium@493189      628.995 +- 38.3003      9       good
chromium@493190      616.17 +- 104.541       9       good
chromium@493191      653.683 +- 65.5451      9       bad       <--
chromium@493196      647.905 +- 64.6236      9       bad
chromium@493206      650.01 +- 59.4085       9       bad
chromium@493246      659.96 +- 7.97167       4       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=http...www.ebay.com page_cycler_v2_site_isolation.basic_oopif

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8969270929219163024


For feedback, file a bug with component Speed>Bisection
►

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