All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=729784

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxpOY4AgM


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

chromium-rel-win8-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8977589719152581376

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

Bisect Details
  Configuration: win_8_perf_bisect
  Benchmark    : loading.desktop
  Metric       : cpuTimeToFirstMeaningfulPaint_avg/pcv1-warm/FIFA

Revision             Result                  N
chromium@475265      397.992 +- 69.9843      21      good
chromium@475287      390.775 +- 15.0456      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=FIFA loading.desktop

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977589719152581376

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5347162021429248


| 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/8977581898556299264

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

Bisect Details
  Configuration: win_8_perf_bisect
  Benchmark    : loading.desktop
  Metric       : cpuTimeToFirstMeaningfulPaint_avg/pcv1-warm/FIFA

Revision             Result                  N
chromium@475265      391.876 +- 51.8491      21      good
chromium@475287      389.187 +- 38.3384      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=FIFA loading.desktop

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977581898556299264

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5347162021429248


| 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!

Looks like part of the variability. There isn't enough long-term data to have confidence there is actually a regression. The bisects runs (normal and wider range) find nothing.