All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=781796

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=e242722588c56b10c40dd382e47db5a6b2ab5f7443509692fc70110ddf248693


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

android-nexus5
android-nexus5X
android-nexus7v2
android-one
android-webview-nexus5X
android-webview-nexus6
chromium-rel-mac-retina
chromium-rel-mac11
chromium-rel-mac11-air
chromium-rel-mac11-pro
chromium-rel-mac12
chromium-rel-mac12-mini-8gb
chromium-rel-win10
chromium-rel-win7-dual
chromium-rel-win7-gpu-ati
chromium-rel-win7-gpu-intel
chromium-rel-win7-gpu-nvidia
chromium-rel-win7-x64-dual
chromium-rel-win8-dual
linux-release
win-high-dpi

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8963663310698133888

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

Hi mek@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 : Marijn Kruisselbrink
  Commit : 9a0e42a43b3a5bdcb81d8fb4617537156631d032
  Date   : Fri Nov 03 18:18:50 2017
  Subject: Add Registry::RegisterBlob trace event to mojo codepath.

Bisect Details
  Configuration: win_x64_perf_bisect
  Benchmark    : blink_perf.owp_storage
  Metric       : Registry::RegisterBlob/Registry::RegisterBlob

Revision             Result                   N
chromium@513776      0.0 +- 0.0               6      good
chromium@513825      0.0 +- 0.0               6      good
chromium@513838      0.0 +- 0.0               6      good
chromium@513839      0.0 +- 0.0               6      good
chromium@513840      18.2224 +- 0.645376      6      bad       <--
chromium@513841      18.3961 +- 0.166849      6      bad
chromium@513844      18.4079 +- 0.249828      6      bad
chromium@513850      18.4609 +- 0.508425      6      bad
chromium@513874      8.49168 +- 0.253011      6      bad

Please refer to the following doc on diagnosing blink_perf regressions:
  https://chromium.googlesource.com/chromium/src/+/master/docs/speed/benchmark_harnesses/blink_perf.md

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 blink_perf.owp_storage

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8963663310698133888


For feedback, file a bug with component Speed>Bisection