All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=689247

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgqOKqugoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgqMa1sgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgqIGgvAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg6MT-twoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgqJThqwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgqJThqwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgqP6CqQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgqJnIrAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgqJSGsgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgyI37-AgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgqPWs_woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgqJScowoM


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

chromium-rel-mac-retina
chromium-rel-mac11
chromium-rel-mac11-air
chromium-rel-mac11-pro
chromium-rel-mac12
chromium-rel-mac12-mini-8gb

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8988367298950186096

=== Auto-CCing suspected CL author erikchen@chromium.org ===

Hi erikchen@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


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

Suspected Commit
  Author : erikchen
  Commit : 230f8e308399900f340cc2254ce2e3aef08fb2d9
  Date   : Fri Feb 03 19:34:03 2017
  Subject: Emit VMRegions for macOS when doing process memory dumps.

Bisect Details
  Configuration: mac_air_perf_bisect
  Benchmark    : memory.long_running_idle_gmail_background_tbmv2
  Metric       : memory:chrome:renderer_processes:reported_by_os:system_memory:private_dirty_size_avg/memory:chrome:renderer_processes:reported_by_os:system_memory:private_dirty_size_avg

Revision             Result                    N
chromium@448000      0.0 +- 0.0                6      good
chromium@448040      0.0 +- 0.0                6      good
chromium@448045      0.0 +- 0.0                5      good
chromium@448047      0.0 +- 0.0                6      good
chromium@448048      91386033 +- 8017847       6      bad       <--
chromium@448050      88197978 +- 9797305       6      bad
chromium@448060      89052417 +- 10467794      6      bad
chromium@448080      92374905 +- 10377575      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 memory.long_running_idle_gmail_background_tbmv2

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8988367298950186096

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5873357259538432


| 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 Tests>AutoBisect.  Thank you!

Intentional. We now emit data we previously did not emit.