All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=759725

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=ab55bb130faa65dd04b2315d25807fb4fe2d743ad3ac16597b25b193658d7c63


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

android-nexus5

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8969998443776116416

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

Suspected Commit
  Author : Walter Korman
  Commit : 7d7ff538f2290ac340336b14c34ba6183566dd3c
  Date   : Wed Aug 16 23:09:50 2017
  Subject: Migrate top_25 and top_25_smooth PageSet(s) to WprGo.

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : smoothness.top_25_smooth
  Metric       : frame_times/Pinterest
  Change       : 8.16% | 16.5516523636 -> 17.9023389029

Revision             Result                     N
chromium@494883      16.5517 +- 0.00524192      6      good
chromium@494957      16.553 +- 0.00402192       6      good
chromium@494976      16.5595 +- 0.00719752      6      good
chromium@494985      16.5518 +- 0.00764507      6      good
chromium@494988      16.5553 +- 0.00623809      6      good
chromium@494989      16.5552 +- 0.00967062      6      good
chromium@494990      17.8982 +- 0.463808        6      bad       <--
chromium@494994      17.8623 +- 0.660921        6      bad
chromium@495030      17.9323 +- 0.574415        6      bad
chromium@495176      17.9023 +- 0.513373        6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=Pinterest smoothness.top_25_smooth

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8969998443776116416


For feedback, file a bug with component Speed>Bisection