All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=756504

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=4f20f7417e9fa945aa8b2c4e77686ffa3e83d8c35d44d9d7e67e5cd60a9dcf0c


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

android-nexus5

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970993615648096992

=== Auto-CCing suspected CL author gdeepti@google.com ===

Hi gdeepti@google.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 : Deepti Gandluri
  Commit : 575ec86335a839660394f55a34c5e615d9c1b4f3
  Date   : Fri Aug 04 19:04:12 2017
  Subject: [wasm] Implement atomic logical BinOps

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : blink_perf.paint
  Metric       : paint-offset-changes/paint-offset-changes
  Change       : 8.40% | 2523.49166667 -> 2735.41641667

Revision                           Result                  N
chromium@492225                    2523.49 +- 11.4632      6      good
chromium@492227                    2531.14 +- 31.7844      6      good
chromium@492228                    2555.77 +- 83.7409      6      good
chromium@492228,v8@575ec86335      2741.47 +- 35.8768      6      bad       <--
chromium@492228,v8@bec2b4d267      2751.14 +- 37.501       6      bad
chromium@492228,v8@93d84f28d6      2750.23 +- 36.3625      6      bad
chromium@492229                    2758.46 +- 35.9171      6      bad
chromium@492232                    2696.53 +- 31.8326      6      bad
chromium@492239                    2735.42 +- 35.3501      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests blink_perf.paint

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970993615648096992


For feedback, file a bug with component Speed>Bisection

gdeepti: any update here? Cc-ing wangxianzhu, owner of blink_perf.paint, to help with setting priority.

WontFix-ing due to inactivity.