All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=779805

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=983ed496c20bab2dc1391bb89580171e55a318a8180f263461c35e0c02c901ed


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

chromium-rel-mac11-pro
chromium-rel-mac12
chromium-rel-win10

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8964269937599731840

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

Suspected Commit
  Author : Alex Moshchuk
  Commit : 9cf0ac139cc65890b9e036f704040c8da332d6e3
  Date   : Wed Oct 25 21:26:19 2017
  Subject: Add field trial testing config for sign-in process isolation.

Bisect Details
  Configuration: winx64_10_perf_bisect
  Benchmark    : system_health.memory_desktop
  Metric       : memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/load_media/load_media_dailymotion
  Change       : 14.22% | 30386468.5714 -> 34707683.5556

Revision             Result                    N
chromium@511581      30386469 +- 10549231      14      good
chromium@511589      30003655 +- 8586522       9       good
chromium@511593      29887147 +- 8835458       9       good
chromium@511594      35191012 +- 7331705       9       bad       <--
chromium@511595      35598791 +- 8993063       9       bad
chromium@511597      34608469 +- 6631777       9       bad
chromium@511612      34550215 +- 6339815       9       bad
chromium@511642      36880384 +- 5083161       6       bad
chromium@511702      34707684 +- 8046677       9       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_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=load.media.dailymotion 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/8964269937599731840


For feedback, file a bug with component Speed>Bisection