All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=752533

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=01404a8b5da0492591c5c2ffa7d62ffc6f8cfa41b82afc66417b26c8782155b8


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

chromium-rel-win7-gpu-nvidia

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8972177896939032528

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

Suspected Commit
  Author : Ulan Degenbaev
  Commit : 774a4c5e240569b551cc9d19ae8cac146891d4c4
  Date   : Fri Jul 28 19:42:31 2017
  Subject: Revert "[heap] Reland "[heap] Allow a minimum semi-space size of 512K.""

Bisect Details
  Configuration: winx64nvidia_perf_bisect
  Benchmark    : v8.runtimestats.browsing_desktop
  Metric       : v8-gc-scavenger_avg/browse_search/browse_search_google_india
  Change       : 27.69% | 0.375592078735 -> 0.479581059038

Revision                           Result                     N
chromium@490645                    0.375592 +- 0.0399946      6      good
chromium@490651                    0.371821 +- 0.048928       6      good
chromium@490652                    0.366802 +- 0.0256222      6      good
chromium@490652,v8@59ddd6061c      0.369466 +- 0.0361977      6      good
chromium@490652,v8@e567dd3ab4      0.379785 +- 0.0370148      6      good
chromium@490652,v8@774a4c5e24      0.503398 +- 0.136224       6      bad       <--
chromium@490652,v8@4a9718c777      0.464314 +- 0.0462183      6      bad
chromium@490653                    0.512236 +- 0.0395805      6      bad
chromium@490654                    0.50159 +- 0.0565911       6      bad
chromium@490657                    0.505123 +- 0.103648       6      bad
chromium@490669                    0.479581 +- 0.145366       6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.search.google.india 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/8972177896939032528


For feedback, file a bug with component Speed>Bisection