All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=787410

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=6565dbb4caf6f0b13eaa8750d21617ed9c81e79d9649090ebbf93e71334a0c88


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

android-nexus5
android-nexus5X
android-nexus6
android-nexus7v2
chromium-rel-mac11-pro

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8962316036349751376

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

Suspected Commit
  Author : Camillo Bruni
  Commit : a4af0ce633c5032bafc55e86248c9a78634ef8f8
  Date   : Sat Nov 18 00:52:12 2017
  Subject: [ic] Track the IC state change in FeedbackNexus::ConfigureMegamorphic

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:allocated_by_malloc:peak_size_max/browse_media/browse_media_flickr_infinite_scroll
  Change       : 105.65% | 2436151.33333 -> 5009961.33333

Revision                           Result                 N
chromium@517724                    2436151 +- 928695      6      good
chromium@517726                    2227013 +- 496608      6      good
chromium@517727                    2200985 +- 313575      6      good
chromium@517727,v8@a4af0ce633      5116212 +- 956046      6      bad       <--
chromium@517727,v8@87d7722be4      5299457 +- 231397      6      bad
chromium@517727,v8@09b53eef4c      4938483 +- 993071      6      bad
chromium@517728                    5009961 +- 699905      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=browse.media.flickr.infinite.scroll v8.runtimestats.browsing_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8962316036349751376


For feedback, file a bug with component Speed>Bisection