All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=757311

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=8e0b789b83af414a0d97199aa9d63b0eeba6a25841eea83990cdaf0379cefda2


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

chromium-rel-win7-dual
chromium-rel-win7-x64-dual
chromium-rel-win8-dual
win-high-dpi

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970677486606535968

=== 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: win_8_perf_bisect
  Benchmark    : media.tough_video_cases_tbmv2
  Metric       : memory:chrome:all_processes:reported_by_chrome:malloc:effective_size_avg/video.html?src_crowd1080_vp9.webm_seek
  Change       : 9.03% | 24432801.7143 -> 26639614.2857

Revision             Result                   N
chromium@493807      24432802 +- 3221344      14      good
chromium@493889      24217357 +- 129202       9       good
chromium@493895      24213584 +- 107714       9       good
chromium@493896      24110903 +- 502002       6       good
chromium@493897      26979052 +- 2977373      9       bad       <--
chromium@493898      26964289 +- 3002372      9       bad
chromium@493900      26975647 +- 2983749      9       bad
chromium@493910      26984078 +- 2981010      9       bad
chromium@493930      26988217 +- 3008338      9       bad
chromium@493971      26639614 +- 4900038      14      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=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/8970677486606535968


For feedback, file a bug with component Speed>Bisection