All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=735925

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg9tTguQkM


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

chromium-rel-mac11-air

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976083886324588704

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976083878576210416

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

Bisect Details
  Configuration: mac_air_perf_bisect
  Benchmark    : smoothness.tough_webgl_cases
  Metric       : mean_frame_time/http___kenrussell.github.io_webgl-animometer_Animometer_tests_3d_webgl.html

Revision             Result                  N
chromium@479375      49.6365 +- 4.98626      21      good
chromium@479511      49.4835 +- 6.50859      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...kenrussell.github.io.webgl.animometer.Animometer.tests.3d.webgl.html smoothness.tough_webgl_cases

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976083886324588704

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4629120748617728


| 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!

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976056850221602416

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

Bisect Details
  Configuration: mac_air_perf_bisect
  Benchmark    : smoothness.tough_webgl_cases
  Metric       : mean_frame_time/http___kenrussell.github.io_webgl-animometer_Animometer_tests_3d_webgl.html

Revision             Result                  N
chromium@479375      49.261 +- 9.73916       21      good
chromium@479511      49.4225 +- 7.11702      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...kenrussell.github.io.webgl.animometer.Animometer.tests.3d.webgl.html smoothness.tough_webgl_cases

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976083878576210416

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6216103245643776


| 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!

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976053069469577312

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

Bisect Details
  Configuration: mac_air_perf_bisect
  Benchmark    : smoothness.tough_webgl_cases
  Metric       : mean_frame_time/http___kenrussell.github.io_webgl-animometer_Animometer_tests_3d_webgl.html

Revision             Result                 N
chromium@479375      49.4825 +- 8.6095      21      good
chromium@479511      48.881 +- 4.91803      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...kenrussell.github.io.webgl.animometer.Animometer.tests.3d.webgl.html smoothness.tough_webgl_cases

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976056850221602416

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4629120748617728


| 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!

=== BISECT JOB RESULTS ===
Perf regression found but unable to narrow commit range

Build failures prevented the bisect from narrowing the range further.


Bisect Details
  Configuration: mac_air_perf_bisect
  Benchmark    : smoothness.tough_webgl_cases
  Metric       : mean_frame_time/http___kenrussell.github.io_webgl-animometer_Animometer_tests_3d_webgl.html
  Change       : 3.13% | 49.1917857143 -> 50.1945

Suspected Commit Range
  3 commits in range
  https://chromium.googlesource.com/chromium/src/+log/e33287b05658f232d0026256007df3e4981cdfc9..2d62599db9a2c87d542748c7992de0d24b32e513


Revision             Result                  N
chromium@479375      49.1918 +- 3.05981      14       good
chromium@479382      48.8376 +- 3.40187      9        good
chromium@479385      49.1883 +- 2.13785      14       good
chromium@479386      ---                     ---      build failure
chromium@479387      ---                     ---      build failure
chromium@479388      51.3598 +- 11.0049      14       bad
chromium@479407      50.8612 +- 7.04653      14       bad
chromium@479443      50.4825 +- 5.48578      14       bad
chromium@479511      50.1945 +- 1.75357      6        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...kenrussell.github.io.webgl.animometer.Animometer.tests.3d.webgl.html smoothness.tough_webgl_cases

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976053069469577312

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6216103245643776


| 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!

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970974752601731920

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/12985760780000

Trying again now that this bisector is ported to pinpoint.

📍 Pinpoint job completed.
https://pinpoint-dot-chromeperf.appspot.com/job/12985760780000

Still can't repro.