All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=757491

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=a9663ad90a4a5a4664e2bf0679989793e02de1bd549f2bc343ec528c48a32499


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

android-nexus5

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970632320314678000

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

Hi mlippautz@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 : Michael Lippautz
  Commit : 0a356b3cd04e4a94f20023292b2102b446c98217
  Date   : Thu Aug 17 19:24:38 2017
  Subject: [wrapper-tracing] Trace EventListener_s through EventListenerMap

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : v8.detached_context_age_in_gc
  Metric       : V8_DetachedContextAgeInGC/https___www.google.com__hl_en_q_barack+obama
  Change       : 50.00% | 2.0 -> 3.0

Revision             Result          N
chromium@495176      2.0 +- 0.0      6      good
chromium@495234      2.0 +- 0.0      6      good
chromium@495263      2.0 +- 0.0      6      good
chromium@495271      2.0 +- 0.0      6      good
chromium@495273      2.0 +- 0.0      6      good
chromium@495274      2.0 +- 0.0      6      good
chromium@495275      3.0 +- 0.0      6      bad       <--
chromium@495278      3.0 +- 0.0      6      bad
chromium@495292      3.0 +- 0.0      6      bad

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 --story-filter=https...www.google.com..hl.en.q.barack.obama v8.detached_context_age_in_gc

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970632320314678000


For feedback, file a bug with component Speed>Bisection

 Issue 757497  has been merged into this issue.