All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=748526

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=9a93b15b78435e3838b9a360a422b906071e5ab1a2a22e31d54d3943b00398cd


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

win-high-dpi

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8973090790862258656

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

Suspected Commit
  Author : Adam Rice
  Commit : 2431d137d1016a82d007556eb15189f0500507b1
  Date   : Fri Jul 21 06:57:22 2017
  Subject: Wrap Promise manipulation methods in Stream API

Bisect Details
  Configuration: winx64_high_dpi_perf_bisect
  Benchmark    : media.tough_video_cases_tbmv2
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:effective_size_avg/video.html?src_tulip2.mp4
  Change       : 10.20% | 5140480.0 -> 5664768.0

Revision             Result              N
chromium@488461      5140480 +- 0.0      6      good
chromium@488542      5140480 +- 0.0      6      good
chromium@488583      5140480 +- 0.0      6      good
chromium@488603      5140480 +- 0.0      6      good
chromium@488604      5140480 +- 0.0      6      good
chromium@488605      5664768 +- 0.0      6      bad       <--
chromium@488606      5664768 +- 0.0      6      bad
chromium@488608      5664768 +- 0.0      6      bad
chromium@488613      5664768 +- 0.0      6      bad
chromium@488623      5664768 +- 0.0      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.tulip2.mp4 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/8973090790862258656


For feedback, file a bug with component Speed>Bisection