All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=759639

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=54e0d4b04c07910d36629cb4c8e6aac4dde08236bd589cf5e386b8b72c7e27b8


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

android-nexus5X

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970002081950334016

=== 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_nexus5X_perf_bisect
  Benchmark    : thread_times.key_mobile_sites_smooth
  Metric       : thread_IO_cpu_time_per_frame/http___www.boingboing.net
  Change       : 36.06% | 3.34478780504 -> 4.55105036138

Revision             Result                    N
chromium@495228      3.34479 +- 0.248386       6      good
chromium@495294      3.38171 +- 0.0990068      6      good
chromium@495311      3.32459 +- 0.198797       6      good
chromium@495319      3.28568 +- 0.268125       6      good
chromium@495323      3.33757 +- 0.167321       6      good
chromium@495325      3.34936 +- 0.101047       6      good
chromium@495326      3.37399 +- 0.113399       6      good
chromium@495327      4.3688 +- 0.254182        6      bad       <--
chromium@495360      4.55105 +- 0.211909       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/8970002081950334016


For feedback, file a bug with component Speed>Bisection