All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=764134

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=f632cdf97b8272a39d06740337c6ef5b4acb37d708a8aa7fab0300108021ff84


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

chromium-rel-win10
chromium-rel-win7-dual
chromium-rel-win7-gpu-ati
chromium-rel-win7-gpu-intel
chromium-rel-win7-gpu-nvidia
chromium-rel-win7-x64-dual
chromium-rel-win8-dual
win-high-dpi

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8968703944125530256

=== 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: win_x64_perf_bisect
  Benchmark    : media.tough_video_cases_tbmv2
  Metric       : memory:chrome:browser_process:reported_by_chrome:skia:effective_size_avg/memory:chrome:browser_process:reported_by_chrome:skia:effective_size_avg
  Change       : 23.28% | 24763.9166667 -> 30528.5277778

Revision                                 Result                  N
chromium@500303                          24763.9 +- 795.419      6      good
chromium@500336                          24089.0 +- 612.806      6      good
chromium@500344                          24298.5 +- 1026.31      6      good
chromium@500344,catapult@c5a474f50f      24326.2 +- 910.505      6      good
chromium@500344,catapult@724bb776bc      30644.1 +- 1917.06      6      bad       <--
chromium@500344,catapult@80c47581b1      30174.3 +- 1055.89      6      bad
chromium@500344,catapult@4f611510b9      30681.6 +- 1782.81      6      bad
chromium@500344,catapult@442f46edf7      30822.7 +- 2063.02      6      bad
chromium@500345                          30624.2 +- 1074.91      6      bad
chromium@500346                          30016.5 +- 557.611      6      bad
chromium@500348                          30331.8 +- 1653.11      6      bad
chromium@500352                          30231.2 +- 1843.41      6      bad
chromium@500368                          30528.5 +- 3237.18      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests media.tough_video_cases_tbmv2

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8968703944125530256


For feedback, file a bug with component Speed>Bisection