All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=747527

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=46d23ec0056a97f6c70ee06230d6dd1d52537483f4e5480802fb5a6f852e5f79


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

chromium-rel-mac11-pro

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8973432871944800800

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

Suspected Commit
  Author : Ross McIlroy
  Commit : 3e19d72377f985545fc4966dcfad76442280d68f
  Date   : Tue Jul 18 09:43:19 2017
  Subject: [Compiler] Move creation of SharedFunctionInfo later in compile.

Bisect Details
  Configuration: mac_pro_perf_bisect
  Benchmark    : media.tough_video_cases_tbmv2
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:allocated_by_malloc:peak_size_avg/video.html?src_crowd1080.webm
  Change       : 2.82% | 290912.0 -> 299104.0

Revision                           Result             N
chromium@487444                    290912 +- 0.0      6      good
chromium@487449                    290912 +- 0.0      6      good
chromium@487451                    290912 +- 0.0      6      good
chromium@487452                    290912 +- 0.0      6      good
chromium@487452,v8@2b5a36d571      290912 +- 0.0      6      good
chromium@487452,v8@3e19d72377      299104 +- 0.0      6      bad       <--
chromium@487452,v8@b56b94bebc      299104 +- 0.0      6      bad
chromium@487453                    299104 +- 0.0      6      bad
chromium@487462                    299104 +- 0.0      6      bad
chromium@487480                    299104 +- 0.0      6      bad
chromium@487515                    299104 +- 0.0      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.crowd1080.webm 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/8973432871944800800


For feedback, file a bug with component Speed>Bisection