All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=755176

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=4e1948cb7676d39090510f2dabf5612cb0726a727ea33c7a39775de277645dfb


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

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/8971267003892591536

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

Suspected Commit
  Author : Fredrik Hubinette
  Commit : 46c25f4aeea8ba4487d9104b0b7034c40631cbec
  Date   : Sat Aug 12 00:27:30 2017
  Subject: Revert "Add test and fixes for loading many videos on the same page."

Bisect Details
  Configuration: winx64nvidia_perf_bisect
  Benchmark    : media.tough_video_cases_tbmv2
  Metric       : memory:chrome:all_processes:reported_by_chrome:cc:effective_size_avg/video.html?src_crowd1080_vp9.webm_seek
  Change       : 16.32% | 14329307.4286 -> 16667538.2857

Revision             Result                   N
chromium@493864      14329307 +- 3197094      14      good
chromium@493887      14739688 +- 5906513      21      good
chromium@493893      14816146 +- 5043596      14      good
chromium@493896      14022172 +- 927527       9       good
chromium@493897      16896914 +- 4579128      14      bad       <--
chromium@493898      16669879 +- 5200284      14      bad
chromium@493899      16929682 +- 4348939      14      bad
chromium@493910      16903936 +- 4504855      14      bad
chromium@493955      16667538 +- 5302178      14      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 --story-filter=video.html.src.crowd1080.vp9.webm.seek 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/8971267003892591536


For feedback, file a bug with component Speed>Bisection