All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=740923

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=4b2281429385a73e3318413726d6b48fb29009613d6179bcc09d6c209511e1be


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

chromium-rel-mac11-pro
chromium-rel-win8-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8974363797501642032

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

Suspected Commit
  Author : Leszek Swirski
  Commit : a2fcdc7cc8b286941ca054bf62c8a51166e39379
  Date   : Wed Jul 05 12:04:50 2017
  Subject: [runtime] Move profiler ticks from SFI to feedback vector

Bisect Details
  Configuration: win_8_perf_bisect
  Benchmark    : system_health.memory_desktop
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:allocated_objects_size_avg/load_games/load_games_bubbles
  Change       : 0.28% | 5445257.14286 -> 5430094.57143

Revision                           Result                  N
chromium@484246                    5445257 +- 32542.5      14      good
chromium@484275                    5449560 +- 24392.5      9       good
chromium@484279                    5451016 +- 9870.01      6       good
chromium@484279,v8@b2644df70f      5447069 +- 17725.1      9       good
chromium@484279,v8@6886f2ceed      5452915 +- 12315.7      6       good
chromium@484279,v8@a2fcdc7cc8      5437193 +- 218.927      9       bad       <--
chromium@484280                    5426491 +- 21126.6      6       bad
chromium@484281                    5437032 +- 180.931      6       bad
chromium@484283                    5436059 +- 7696.01      9       bad
chromium@484290                    5435179 +- 17779.6      9       bad
chromium@484304                    5430095 +- 33259.9      14      bad

Please refer to the following doc on diagnosing memory regressions:
  https://chromium.googlesource.com/chromium/src/+/master/docs/memory-infra/memory_benchmarks.md

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=load.games.bubbles system_health.memory_desktop

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8974363797501642032


For feedback, file a bug with component Speed>Bisection