All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=775694

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=5e5a95798378eb9c7d69d64216ef971412ac3bf2348ccb4ccb6ac73246db80a0


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

android-nexus5X

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8965449580645078176

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

Hi pfeldman@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 : Pavel Feldman
  Commit : ea024fd8b8992679ca1474379085fcc8b360615c
  Date   : Mon Oct 09 20:52:37 2017
  Subject: DevTools: introduce per-frame lifecycle events.

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : blink_perf.owp_storage
  Metric       : IDBFactory::open/IDBFactory::open
  Change       : 3.49% | 5.33773333333 -> 5.52425000001

Revision             Result                   N
chromium@507430      5.33773 +- 0.126211      6      good
chromium@507461      5.36143 +- 0.182277      6      good
chromium@507476      5.36432 +- 0.260106      9      good
chromium@507477      5.63012 +- 0.173605      6      bad       <--
chromium@507478      5.5636 +- 0.220695       6      bad
chromium@507480      5.57973 +- 0.184147      6      bad
chromium@507484      5.52413 +- 0.152576      6      bad
chromium@507491      5.60437 +- 0.172948      6      bad
chromium@507551      5.52425 +- 0.22406       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=android-chromium --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/8965449580645078176


For feedback, file a bug with component Speed>Bisection

Fixed in https://chromium.googlesource.com/chromium/src/+/5c134d4104acf031bce82d979915be3fbfc833f4