All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=739741

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=8fb2c8b285a81eae1bff6486eb3c66a5b443a7b3480640bb4fba297c15f051af


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

chromium-rel-win7-gpu-ati
chromium-rel-win7-gpu-nvidia
win-high-dpi

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8974806186551310688

=== BISECT JOB RESULTS ===
Perf regression found but unable to narrow commit range

Build failures prevented the bisect from narrowing the range further.


Bisect Details
  Configuration: winx64_high_dpi_perf_bisect
  Benchmark    : media.tough_video_cases_tbmv2
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:allocated_objects_size_avg/video.html?src_crowd1080_vp9.webm_seek
  Change       : 1.65% | 3995588.0 -> 4061349.33333

Suspected Commit Range
  2 commits in range
  https://chromium.googlesource.com/v8/v8.git/+log/c746dcf9ecfe96b9bfeb3a87e80e76875b1679f8..7cf7a4307b304bea3bf2bc3d42dcf1f8ec2fe866


Revision                           Result                  N
chromium@483957                    3995588 +- 1511.42      6        good
chromium@483969                    3995820 +- 3226.78      6        good
chromium@483972                    3995407 +- 1584.06      6        good
chromium@483973                    3995984 +- 1726.41      6        good
chromium@483973,v8@c746dcf9ec      3995384 +- 1537.29      6        good
chromium@483973,v8@6c1e67f806      ---                     ---      build failure
chromium@483973,v8@7cf7a4307b      4061395 +- 457.844      6        bad
chromium@483974                    4061604 +- 1535.7       6        bad
chromium@483975                    4061417 +- 298.994      6        bad
chromium@483981                    4061304 +- 333.131      6        bad
chromium@484004                    4061349 +- 368.29       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.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/8974806186551310688


For feedback, file a bug with component Speed>Bisection