All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=763816

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=184a2ba054b07bde90bf0aa864305b7fd896e46744559dbd3e7434148906eb1b


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

chromium-rel-mac-retina
chromium-rel-mac11
chromium-rel-mac11-pro
chromium-rel-mac12
chromium-rel-mac12-mini-8gb
chromium-rel-win7-x64-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8968763275122003072

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

Suspected Commit
  Author : xunjieli
  Commit : 724bb776bcdea642a5bc9cc20fe14bb0282b4900
  Date   : Wed Sep 06 14:29:20 2017
  Subject: [Telemetry] Use --ignore-certificate-errors-spki-list to bypass cert errors

Bisect Details
  Configuration: mac_10_12_perf_bisect
  Benchmark    : v8.runtimestats.browsing_desktop
  Metric       : Parse-Background:duration_avg/browse_news/browse_news_flipboard
  Change       : 306.57% | 15.5025 -> 63.0288333333

Revision                                 Result                  N
chromium@500342                          15.5025 +- 1.64866      6       good
chromium@500344                          23.8827 +- 64.5939      9       good
chromium@500344,catapult@c5a474f50f      14.4208 +- 2.61632      6       good
chromium@500344,catapult@724bb776bc      79.7219 +- 67.545       9       bad       <--
chromium@500344,catapult@80c47581b1      65.6003 +- 110.167      14      bad
chromium@500344,catapult@4f611510b9      55.3992 +- 94.376       9       bad
chromium@500344,catapult@442f46edf7      85.914 +- 11.2801       6       bad
chromium@500345                          62.643 +- 75.2671       6       bad
chromium@500348                          63.3222 +- 73.139       6       bad
chromium@500354                          73.7657 +- 60.2644      6       bad
chromium@500366                          74.0512 +- 61.3809      6       bad
chromium@500389                          73.0253 +- 57.1579      6       bad
chromium@500435                          63.0288 +- 76.05        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=browse.news.flipboard v8.runtimestats.browsing_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8968763275122003072


For feedback, file a bug with component Speed>Bisection