All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=755135

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=2cac8adac6758857160ce87aa2b224c063e33b86b904b2fda3471a50f56812cc


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

android-nexus5X
android-nexus7v2
chromium-rel-mac11
chromium-rel-mac12
chromium-rel-mac12-mini-8gb
chromium-rel-win10
chromium-rel-win7-dual
chromium-rel-win7-gpu-nvidia

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8971276798081429728

these have all recovered.

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

Bisect Details
  Configuration: winx64nvidia_perf_bisect
  Benchmark    : media.tough_video_cases
  Metric       : time_to_play/video.html?src_tulip2.wav_type_audio

Revision             Result                  N
chromium@493144      70.5567 +- 473.557      21      good
chromium@493308      52.7571 +- 100.752      21      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=video.html.src.tulip2.wav.type.audio media.tough_video_cases

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8971276798081429728


For feedback, file a bug with component Speed>Bisection