All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=758275

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=aa7883344e617874c1652f416d4bc8e9d5d41ef8960d4280d922969552d5b814


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

android-nexus7v2

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970449134226126928

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

Suspected Commit
  Author : Charles Harrison
  Commit : 007abddf6ad7f7d3f1491217119e3e7166faaace
  Date   : Thu Aug 17 21:39:49 2017
  Subject: Testing config: doc.write blocking change on slow connections only

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : thread_times.key_mobile_sites_smooth
  Metric       : thread_IO_cpu_time_per_frame/http___www.boingboing.net
  Change       : 12.78% | 2.86636902566 -> 3.2327319608

Revision             Result                    N
chromium@495119      2.86637 +- 0.0758527      6      good
chromium@495237      2.84595 +- 0.0802614      6      good
chromium@495296      2.86895 +- 0.106798       6      good
chromium@495325      2.85616 +- 0.145594       6      good
chromium@495326      2.81194 +- 0.103504       6      good
chromium@495327      3.46014 +- 1.30302        6      bad       <--
chromium@495329      3.28812 +- 0.212143       6      bad
chromium@495333      3.34145 +- 0.397564       6      bad
chromium@495340      3.4024 +- 1.65467         9      bad
chromium@495354      3.23273 +- 0.205085       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=http...www.boingboing.net thread_times.key_mobile_sites_smooth

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970449134226126928


For feedback, file a bug with component Speed>Bisection