All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=787419

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=a57a47083dbf7f156574aa92a2c06b114b42f5039bc84ee80d012a93cd4088bb


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

android-nexus5X
android-nexus6
android-nexus7v2
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/8962313557803712608

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

Suspected Commit
  Author : Michael Starzinger
  Commit : 23883b85f21a2c61515cb57064b19901ae666884
  Date   : Thu Nov 09 09:31:15 2017
  Subject: [deoptimizer] Turn deopt entries into immovable Code objects.

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:large_object_space:allocated_objects_size_avg/browse_social/browse_social_facebook_infinite_scroll
  Change       : 101696.89% | 378.103982253 -> 384898.087014

Revision                           Result                   N
chromium@515924                    378.104 +- 0.348722      6      good
chromium@515942                    379.044 +- 5.43837       6      good
chromium@515951                    377.981 +- 0.338191      6      good
chromium@515951,v8@1ea3fd2e13      378.039 +- 0.518344      6      good
chromium@515951,v8@6aa3349afb      377.936 +- 0.219629      6      good
chromium@515951,v8@a9c908eb40      376.901 +- 5.17298       6      good
chromium@515951,v8@23883b85f2      384891 +- 885.841        6      bad       <--
chromium@515951,v8@b9c9932202      384664 +- 610.703        6      bad
chromium@515951,v8@d1193e3c6c      384862 +- 715.265        6      bad
chromium@515951,v8@2328e4d196      383120 +- 6943.92        6      bad
chromium@515952                    385017 +- 952.19         6      bad
chromium@515953                    384632 +- 477.169        6      bad
chromium@515954                    383913 +- 5372.99        6      bad
chromium@515956                    384992 +- 634.168        6      bad
chromium@515960                    384898 +- 514.52         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.social.facebook.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/8962313557803712608


For feedback, file a bug with component Speed>Bisection