All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=729249

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxonK8gsM


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

chromium-rel-win7-gpu-ati

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8977854254472803056

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

Bisect Details
  Configuration: winx64ati_perf_bisect
  Benchmark    : smoothness.top_25_smooth
  Metric       : percentage_smooth/Wordpress

Revision             Result                  N
chromium@473526      78.7514 +- 64.4085      21      good
chromium@473574      76.7728 +- 65.8201      21      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=Wordpress smoothness.top_25_smooth

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977854254472803056

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5026356619902976


| 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/8977849914319091088

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

Bisect Details
  Configuration: winx64ati_perf_bisect
  Benchmark    : smoothness.top_25_smooth
  Metric       : percentage_smooth/Wordpress

Revision             Result                  N
chromium@473526      85.0403 +- 60.0009      21      good
chromium@473574      77.7029 +- 65.5456      21      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=Wordpress smoothness.top_25_smooth

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977849914319091088

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5026356619902976


| 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/8977588893631647536

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

Bisect Details
  Configuration: winx64ati_perf_bisect
  Benchmark    : smoothness.top_25_smooth
  Metric       : percentage_smooth/Wordpress

Revision             Result                  N
chromium@473497      82.3271 +- 72.0014      21      good
chromium@473670      78.1006 +- 57.9384      21      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=Wordpress smoothness.top_25_smooth

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977588893631647536

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5783733770125312


| 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/8977581893453130640

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

Bisect Details
  Configuration: winx64ati_perf_bisect
  Benchmark    : smoothness.top_25_smooth
  Metric       : percentage_smooth/Wordpress

Revision             Result                  N
chromium@473497      80.0698 +- 67.8923      21      good
chromium@473670      83.6874 +- 62.5972      21      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=Wordpress smoothness.top_25_smooth

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977581893453130640

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5783733770125312


| 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!

There's no ref build to check against, and the ToT seems to have gone from bimodal to the lower value. No bisects can reproduce. Don't see a way to figure out the cause of this. Just one page on one device.