All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=631127

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgyubH7goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgiu6QvQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgiri00QsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgyt_p8AgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgyuXUugkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgyruT4QoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgyuXA6woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgysbn8QoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgiu_i-goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgysGU9QkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgysbn8QkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgyqPd8QgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgip_QkAgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgqojWowoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgqr7pugkM


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

chromium-rel-win7-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9006144028836792320

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9006143982439588288

===== BISECT JOB RESULTS =====
Status: completed


=== Bisection aborted ===
The bisect was aborted because The metric values for the initial "good" and "bad" revisions do not represent a clear regression.
Please contact the the team (see below) if you believe this is in error.

=== Warnings ===
The following warnings were raised by the bisect job:

 * Bisect failed to reproduce the regression with enough confidence.

===== TESTED REVISIONS =====
Revision         Mean     Std Dev  N   Good?
chromium@405220  337.345  6.26484  18  good
chromium@405763  333.85   5.08553  18  bad

Bisect job ran on: win_perf_bisect
Bug ID: 631127

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --also-run-disabled-tests media.tough_video_cases_extra
Test Metric: seek/video.html?src_garden2_10s.webm
Relative Change: 1.07%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/win_perf_bisect/builds/6730
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9006143982439588288


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5511603072532480

| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Tests>AutoBisect.  Thank you!

===== BISECT JOB RESULTS =====
Status: failed


===== TESTED REVISIONS =====
Revision         Mean     Std Dev   N  Good?
chromium@405220  15.7     0.276625  8  good
chromium@405491  16.33    0.471123  8  bad
chromium@405763  17.8525  2.0327    8  bad

Bisect job ran on: win_perf_bisect
Bug ID: 631127

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --also-run-disabled-tests media.tough_video_cases_extra
Test Metric: seek/tulip2.ogv_seek_cold
Relative Change: 17.04%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/win_perf_bisect/builds/6729
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9006144028836792320


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6701833804840960

| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Tests>AutoBisect.  Thank you!

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9005837417760589392

===== BISECT JOB RESULTS =====
Status: failed


===== TESTED REVISIONS =====
Revision         Mean     Std Dev   N  Good?
chromium@405220  15.7     0.276625  8  good
chromium@405491  16.33    0.471123  8  bad
chromium@405763  17.8525  2.0327    8  bad

Bisect job ran on: win_perf_bisect
Bug ID: 631127

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --also-run-disabled-tests media.tough_video_cases_extra
Test Metric: seek/tulip2.ogv_seek_cold
Relative Change: 17.04%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/win_perf_bisect/builds/6729
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9006144028836792320


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6701833804840960

| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Tests>AutoBisect.  Thank you!

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9005742851094589312

===== BISECT JOB RESULTS =====
Status: completed


=== Bisection aborted ===
The bisect was aborted because The metric values for the initial "good" and "bad" revisions do not represent a clear regression.
Please contact the the team (see below) if you believe this is in error.

=== Warnings ===
The following warnings were raised by the bisect job:

 * Bisect failed to reproduce the regression with enough confidence.

===== TESTED REVISIONS =====
Revision         Mean     Std Dev   N   Good?
chromium@405220  15.7842  0.713299  18  good
chromium@405763  15.975   1.86519   18  bad

Bisect job ran on: win_perf_bisect
Bug ID: 631127

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --also-run-disabled-tests media.tough_video_cases_extra
Test Metric: seek/tulip2.ogv_seek_cold
Relative Change: 0.74%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/win_perf_bisect/builds/6747
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9006144028836792320


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6701833804840960

| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Tests>AutoBisect.  Thank you!

Can't reproduce.