All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=765279

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=b581fa7a89b63f69c2eec358b7dbe2b5a4e62850e128af0eec2f33f89f6892dd


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

chromium-rel-mac11
chromium-rel-mac12

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8968460502002420768

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

Suspected Commit
  Author : Hitoshi Yoshida
  Commit : 3e5db563a65e3968d1e336312ae1bbb85e18321d
  Date   : Mon Sep 11 02:31:08 2017
  Subject: FieldTrial: Add field trial configuration for V8ContextSnapshot

Bisect Details
  Configuration: mac_10_12_perf_bisect
  Benchmark    : media.tough_video_cases_tbmv2
  Metric       : memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/video.html?src_garden2_10s.mp4
  Change       : 10.75% | 3168329.33333 -> 3508794.66667

Revision             Result                  N
chromium@500815      3168329 +- 6116.01      6      good
chromium@500823      3171001 +- 1462.42      6      good
chromium@500827      3167984 +- 4985.55      6      good
chromium@500828      3170807 +- 3356.25      6      good
chromium@500829      3506705 +- 17271.6      6      bad       <--
chromium@500831      3508795 +- 6636.33      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.garden2.10s.mp4 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/8968460502002420768


For feedback, file a bug with component Speed>Bisection