All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=755178

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=132ca25424598e87872b7964aebc81827ef6288319294a3e0231587057c79d56


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

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

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8971266929885392784

=== 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       : 10.25% | 24175803.5714 -> 26652791.9286

Revision             Result                   N
chromium@493807      24175804 +- 490244       14      good
chromium@493890      24219807 +- 130974       9       good
chromium@493896      24228523 +- 135376       14      good
chromium@493897      26675396 +- 4901599      14      bad       <--
chromium@493898      27047883 +- 3025705      9       bad
chromium@493899      27013026 +- 2962780      9       bad
chromium@493901      26887324 +- 2847488      6       bad
chromium@493911      27066329 +- 3075766      9       bad
chromium@493931      26971533 +- 3027670      9       bad
chromium@493971      26652792 +- 4897970      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/8971266929885392784


For feedback, file a bug with component Speed>Bisection