All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=759709

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=5f0d25cc92739eca387e34ae0cace20e0cd192b932f0fd2b85ed5c1ba5e1b8d0


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

chromium-rel-mac-retina

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8969999047308626064

=== Auto-CCing suspected CL author dongseong.hwang@intel.com ===

Hi dongseong.hwang@intel.com, 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 : Dongseong Hwang
  Commit : 28c6ec2bd253f0a6409bd31f7ae3abb01eb71063
  Date   : Thu Aug 17 17:20:52 2017
  Subject: viz: optimize empty swap.

Bisect Details
  Configuration: mac_retina_perf_bisect
  Benchmark    : smoothness.top_25_smooth
  Metric       : first_gesture_scroll_update_latency/LinkedIn
  Change       : 41.90% | 1.78978571429 -> 2.53966666667

Revision             Result                   N
chromium@494990      1.78979 +- 1.77217       14      good
chromium@495126      1.69289 +- 0.955285      9       good
chromium@495194      1.87543 +- 1.56744       14      good
chromium@495202      1.81978 +- 1.21345       9       good
chromium@495204      1.82679 +- 1.54158       14      good
chromium@495205      2.17457 +- 2.02008       14      bad       <--
chromium@495206      2.287 +- 1.71027         14      bad
chromium@495209      2.29278 +- 0.640581      9       bad
chromium@495228      2.32864 +- 1.57658       14      bad
chromium@495262      2.53967 +- 2.09926       9       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=LinkedIn smoothness.top_25_smooth

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8969999047308626064


For feedback, file a bug with component Speed>Bisection

Looks like dongseong hasn't visited monorail in almost a month, adding reviewer reveman for advice, and also test owner vmiura to help with priority.

Closing due to lack of updates.