All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=755982

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=f8fd7243eb0ef126da291d8d20bc5c0127f2399784a2e0c4f9bb81fee320e9f5


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

chromium-rel-mac12
chromium-rel-win7-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8971096347926571168

=== 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_perf_bisect
  Benchmark    : page_cycler_v2.basic_oopif
  Metric       : timeToFirstContentfulPaint_avg/pcv1-warm/http___booking.com
  Change       : 1484.85% | 95.2229999999 -> 1509.13866666

Revision                                 Result                  N
chromium@494029                          95.223 +- 1.98169       6      good
chromium@494040                          95.585 +- 0.956982      6      good
chromium@494045                          96.9803 +- 2.84174      6      good
chromium@494046                          94.8427 +- 1.33698      6      good
chromium@494046,catapult@122dd5e91b      1536.59 +- 155.459      6      bad       <--
chromium@494047                          1760.95 +- 1199.0       6      bad
chromium@494048                          1494.41 +- 421.289      6      bad
chromium@494050                          1533.31 +- 360.46       6      bad
chromium@494071                          1509.14 +- 351.426      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/8971096347926571168


For feedback, file a bug with component Speed>Bisection