All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=755979

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=0be4373161dd751b5ce4cb41e7b290374f607c6b3a9c88a61c1f7bc714aa427b


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

chromium-rel-mac-retina
chromium-rel-mac11
chromium-rel-win7-gpu-nvidia
chromium-rel-win8-dual
win-high-dpi

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8971096800752193472

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

Suspected Commit
  Author : perezju
  Commit : 122dd5e91bf64888049459ce73a8fd34c084cfe0
  Date   : Mon Aug 14 12:28:51 2017
  Subject: [Telemetry] Reuse shared state between story runs

Bisect Details
  Configuration: win_8_perf_bisect
  Benchmark    : page_cycler_v2.basic_oopif
  Metric       : timeToFirstContentfulPaint_avg/pcv1-warm/http___booking.com
  Change       : 2150.96% | 105.1775 -> 2367.501

Revision                                 Result                  N
chromium@494045                          105.178 +- 7.07585      6      good
chromium@494046                          105.27 +- 7.02607       6      good
chromium@494046,catapult@122dd5e91b      2437.5 +- 263.959       6      bad       <--
chromium@494047                          2466.67 +- 451.511      6      bad
chromium@494048                          2295.72 +- 163.921      6      bad
chromium@494051                          2301.07 +- 223.224      6      bad
chromium@494057                          2266.54 +- 275.938      6      bad
chromium@494069                          2297.09 +- 196.915      6      bad
chromium@494093                          2651.43 +- 1987.09      6      bad
chromium@494141                          2367.5 +- 416.584       6      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=http...booking.com page_cycler_v2.basic_oopif

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8971096800752193472


For feedback, file a bug with component Speed>Bisection