All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=747863

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=6328f8cfab5bc6877f114ded6c21d0e21ec9eb6dde8717259a1e80031b593596


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

chromium-rel-mac-retina

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8973193976957952592

=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: mac_retina_perf_bisect
  Benchmark    : blink_perf.svg
  Metric       : WorldIso/WorldIso

Revision             Result                  N
chromium@488640      44.8332 +- 2.80052      21      good
chromium@488730      44.602 +- 1.92073       21      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 blink_perf.svg

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8973193976957952592


For feedback, file a bug with component Speed>Bisection

 Issue 747862  has been merged into this issue.

Graph seems to have recovered.

came back down.