All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=745159

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=045bd34c66c1026763a8610d817af6e12b0180a44d29bd8c2405396797048f35


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

chromium-rel-mac11-pro

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8973771784267820320

=== Auto-CCing suspected CL author rockot@chromium.org ===

Hi rockot@chromium.org, 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 : Ken Rockot
  Commit : 474df01407e5d38c85364ae4d1709b8d9af16f16
  Date   : Wed Jul 12 13:28:56 2017
  Subject: Mojo C++ Bindings: Lazy Serialization

Bisect Details
  Configuration: mac_pro_perf_bisect
  Benchmark    : service_worker.service_worker_micro_benchmark
  Metric       : concurrent_10_response_50_percentile/concurrent_10_response_50_percentile
  Change       : 4.94% | 6.48611111111 -> 6.80666666667

Revision             Result                    N
chromium@485931      6.48611 +- 0.252168       9       good
chromium@485933      6.41917 +- 0.0649679      6       good
chromium@485934      6.43333 +- 0.162891       6       good
chromium@485935      6.6175 +- 0.344438        14      bad       <--
chromium@485938      6.64722 +- 0.157656       9       bad
chromium@485945      6.62833 +- 0.18097        9       bad
chromium@485959      6.63667 +- 0.148324       9       bad
chromium@485987      6.62556 +- 0.159287       9       bad
chromium@486042      6.80667 +- 0.819329       9       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 service_worker.service_worker_micro_benchmark

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8973771784267820320


For feedback, file a bug with component Speed>Bisection

 Issue 745904  has been merged into this issue.

 Issue 745916  has been merged into this issue.

 Issue 745930  has been merged into this issue.

 Issue 746920  has been merged into this issue.

 Issue 747578  has been merged into this issue.

 Issue 747266  has been merged into this issue.

 Issue 747882  has been merged into this issue.

 Issue 747884  has been merged into this issue.

 Issue 745935  has been merged into this issue.

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8972932608141517200

=== BISECT JOB RESULTS ===
Perf regression found with culprit

Suspected Commit
  Author : Ken Rockot
  Commit : 474df01407e5d38c85364ae4d1709b8d9af16f16
  Date   : Wed Jul 12 13:28:56 2017
  Subject: Mojo C++ Bindings: Lazy Serialization

Bisect Details
  Configuration: mac_pro_perf_bisect
  Benchmark    : service_worker.service_worker_micro_benchmark
  Metric       : concurrent_10_response_50_percentile/concurrent_10_response_50_percentile
  Change       : 2.58% | 6.50555555556 -> 6.67333333333

Revision             Result                    N
chromium@485931      6.50556 +- 0.165747       9      good
chromium@485933      6.4125 +- 0.218718        6      good
chromium@485934      6.47083 +- 0.15222        6      good
chromium@485935      6.66667 +- 0.21641        6      bad       <--
chromium@485938      6.64917 +- 0.105455       6      bad
chromium@485945      6.65833 +- 0.207204       6      bad
chromium@485959      6.67667 +- 0.0767029      6      bad
chromium@485987      6.69333 +- 0.188237       6      bad
chromium@486042      6.67333 +- 0.349976       6      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 service_worker.service_worker_micro_benchmark

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8972932608141517200


For feedback, file a bug with component Speed>Bisection

 Issue 749432  has been merged into this issue.

 Issue 749433  has been merged into this issue.

 Issue 745935  has been merged into this issue.