All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=734640

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgtvnn9woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgtqvksgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgtpPM6QkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgtpy0mwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgtrrg_wsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgtqGF7QoM


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

chromium-rel-mac-retina
chromium-rel-mac11-air
chromium-rel-mac11-pro
chromium-rel-win7-gpu-ati

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976338549311860336

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

Suspected Commit
  Author : Ben Smith
  Commit : 284a4804f2f2cab172d2b4d96048b5d8986c72cd
  Date   : Tue Jun 13 23:45:44 2017
  Subject: [SAB] Move creation of SharedArrayBuffer/Atomics to InitializeGlobal

Bisect Details
  Configuration: mac_air_perf_bisect
  Benchmark    : memory.desktop
  Metric       : memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/TrivialAnimationPageSharedPageState
  Change       : 10.32% | 3188605.33333 -> 3517518.66667

Revision                           Result                  N
chromium@479375                    3188605 +- 8002.02      6      good
chromium@479384                    3188375 +- 8141.9       6      good
chromium@479385                    3191351 +- 1751.92      6      good
chromium@479385,v8@aea68b5a26      3188813 +- 678.319      6      good
chromium@479385,v8@5d7039eac3      3188725 +- 575.741      6      good
chromium@479385,v8@284a4804f2      3655913 +- 253734       6      bad       <--
chromium@479385,v8@7e6ed62071      3619373 +- 269196       6      bad
chromium@479386                    3582531 +- 253692       6      bad
chromium@479388                    3619220 +- 269153       6      bad
chromium@479392                    3619223 +- 269160       6      bad
chromium@479409                    3655940 +- 253642       6      bad
chromium@479443                    3517548 +- 214.29       6      bad
chromium@479511                    3517519 +- 214.489      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=TrivialAnimationPageSharedPageState memory.desktop

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976338549311860336

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5790108256567296


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!