All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=735911

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjrm2iAoM


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

chromium-rel-mac12

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976085070201868576

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976085064215401296

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

Suspected Commit
  Author : Yutaka Hirano
  Commit : 84047549ac37bab70d7306566c912e59131f3e1f
  Date   : Mon Jun 19 04:16:15 2017
  Subject: [Loading] Save one post-task when the data pipe is ready on arrival

Bisect Details
  Configuration: mac_10_12_perf_bisect
  Benchmark    : page_cycler_v2.basic_oopif
  Metric       : timeToFirstContentfulPaint_avg/pcv1-warm/http___www.nationalgeographic.com_
  Change       : 36.33% | 194.4745 -> 265.119666666

Revision             Result                  N
chromium@480312      194.475 +- 18.6418      6      good
chromium@480332      189.072 +- 5.84918      6      good
chromium@480337      190.431 +- 9.29583      6      good
chromium@480340      197.137 +- 18.9292      6      good
chromium@480341      194.252 +- 13.5991      6      good
chromium@480342      261.425 +- 19.5479      5      bad       <--
chromium@480352      265.12 +- 16.2774       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...www.nationalgeographic.com. page_cycler_v2.basic_oopif

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976085070201868576

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5653153292222464


| 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 with culprit

Suspected Commit
  Author : Yutaka Hirano
  Commit : 84047549ac37bab70d7306566c912e59131f3e1f
  Date   : Mon Jun 19 04:16:15 2017
  Subject: [Loading] Save one post-task when the data pipe is ready on arrival

Bisect Details
  Configuration: mac_10_12_perf_bisect
  Benchmark    : page_cycler_v2.basic_oopif
  Metric       : timeToFirstContentfulPaint_avg/pcv1-warm/http___www.nationalgeographic.com_
  Change       : 30.51% | 203.748333334 -> 265.918833333

Revision             Result                  N
chromium@480312      203.748 +- 68.0396      9      good
chromium@480332      197.776 +- 47.0389      6      good
chromium@480337      190.642 +- 6.27332      6      good
chromium@480340      188.847 +- 8.08806      6      good
chromium@480341      189.775 +- 9.78576      6      good
chromium@480342      267.635 +- 28.2453      6      bad       <--
chromium@480352      265.919 +- 34.4489      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...www.nationalgeographic.com. page_cycler_v2.basic_oopif

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976085064215401296

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5616891688648704


| 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!