All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=783870

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=f36f04df47f8bf46a86ade8564ec458ac524fc9220599a329c6d5f678606d28c


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

chromium-rel-win10

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8963286215295973616

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

Suspected Commit
  Author : Zhenyao Mo
  Commit : 1202f66559ca7e37f643a691cac72144ab60493f
  Date   : Thu Nov 09 00:45:05 2017
  Subject: [reland] Move GPU compositing blacklisting to GPU process.

Bisect Details
  Configuration: winx64_10_perf_bisect
  Benchmark    : media.desktop
  Metric       : memory:chrome:all_processes:reported_by_chrome:gpu:effective_size_avg/video.html?src_crowd1080.mp4
  Change       : 78.43% | 2228224.0 -> 3975797.33333

Revision             Result                  N
chromium@515008      2228224 +- 0.0          6       good
chromium@515032      2228224 +- 0.0          9       good
chromium@515035      2228224 +- 0.0          6       good
chromium@515036      3859292 +- 2615528      9       bad       <--
chromium@515037      3975797 +- 1914371      6       bad
chromium@515038      3975797 +- 1914371      6       bad
chromium@515044      3426560 +- 3883052      14      bad
chromium@515055      3859292 +- 2615528      9       bad
chromium@515101      3975797 +- 1914371      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 --story-filter=video.html.src.crowd1080.mp4 media.desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8963286215295973616


For feedback, file a bug with component Speed>Bisection