All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=787403

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=040a0e7324fb353af218943021da956f5bc589bf5be878004fe10b4b111f2947


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

android-nexus5
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/8962316307702547344

=== 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: win_perf_bisect
  Benchmark    : v8.runtimestats.browsing_desktop
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:large_object_space:allocated_objects_size_avg/browse_news/browse_news_reddit
  Change       : 1937.50% | 23832.1818182 -> 485581.146595

Revision                           Result                 N
chromium@515198                    23832.2 +- 130534      6      good
chromium@515247                    0.0 +- 0.0             6      good
chromium@515271                    19418.8 +- 106361      6      good
chromium@515283                    22655.3 +- 124088      6      good
chromium@515289                    0.0 +- 0.0             6      good
chromium@515289,v8@23883b85f2      490154 +- 122165       6      bad       <--
chromium@515289,v8@b9c9932202      470991 +- 10744.6      6      bad
chromium@515289,v8@bc4bd08e63      543715 +- 264470       6      bad
chromium@515289,v8@9eb92da618      474029 +- 429.528      6      bad
chromium@515290                    563822 +- 156328       6      bad
chromium@515291                    507111 +- 161886       6      bad
chromium@515292                    470665 +- 10255.6      6      bad
chromium@515295                    485581 +- 121545       6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.news.reddit v8.runtimestats.browsing_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8962316307702547344


For feedback, file a bug with component Speed>Bisection