All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=745904

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=1fc62350c2320bba07d87eb7d82b5e40b25b52289264f4509b7552d91cc7a3dd


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

chromium-rel-win7-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8973706386837010080

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

Suspected Commit
  Author : Ken Rockot
  Commit : 474df01407e5d38c85364ae4d1709b8d9af16f16
  Date   : Wed Jul 12 13:28:56 2017
  Subject: Mojo C++ Bindings: Lazy Serialization

Bisect Details
  Configuration: win_perf_bisect
  Benchmark    : media.tough_video_cases_tbmv2
  Metric       : memory:chrome:all_processes:reported_by_chrome:malloc:effective_size_avg/video.html?src_tulip2.m4a_type_audio
  Change       : 1.01% | 14623204.0 -> 14771172.8333

Revision             Result                   N
chromium@485899      14623204 +- 80362.9      6      good
chromium@485924      14619629 +- 60904.0      6      good
chromium@485931      14626688 +- 64008.1      6      good
chromium@485934      14592882 +- 44555.4      6      good
chromium@485935      14738225 +- 96200.9      6      bad       <--
chromium@485936      14758695 +- 124822       6      bad
chromium@485937      14764110 +- 96473.8      6      bad
chromium@485949      14771173 +- 55443.9      6      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.tulip2.m4a.type.audio 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/8973706386837010080


For feedback, file a bug with component Speed>Bisection