All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=745916

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=5783ff3616fdc53bbbbd17de5f5816e2b1f7086bd2da6d471e4d2b85e2ac93a2


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

chromium-rel-win7-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8973705868256312160

=== 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.mp3_type_audio
  Change       : 0.67% | 13917768.3333 -> 14011364.0

Revision             Result                   N
chromium@485899      13917768 +- 64842.5      6      good
chromium@485924      13914207 +- 72307.1      6      good
chromium@485931      13885871 +- 83394.5      6      good
chromium@485934      13880061 +- 74144.5      6      good
chromium@485935      14049609 +- 74153.5      6      bad       <--
chromium@485936      14039324 +- 46691.2      6      bad
chromium@485937      14004484 +- 72014.2      6      bad
chromium@485949      14011364 +- 47939.9      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.mp3.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/8973705868256312160


For feedback, file a bug with component Speed>Bisection