All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=753832

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=5f72bc26d693374329ca0a9d4d428fe366af917462211e137b920a4a6f96dff8


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

chromium-rel-mac11-air

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8971725833505870592

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

Bisect Details
  Configuration: mac_air_perf_bisect
  Benchmark    : tracing.tracing_with_debug_overhead
  Metric       : peak_event_size_rate_avg/peak_event_size_rate_avg

Revision             Result                 N
chromium@491932      5879637 +- 882825      21      good
chromium@491975      5893810 +- 800252      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 tracing.tracing_with_debug_overhead

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8971725833505870592


For feedback, file a bug with component Speed>Bisection

Bisect doesn't repro.