All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=781812

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=8beaa0d6e454a36c7afa8bc4de111d1ba040a29df68014f11edc537f962f8adc


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

android-nexus5X
android-webview-nexus5X
chromium-rel-mac-retina
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

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8963659887335916656

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

Suspected Commit
  Author : Ulan Degenbaev
  Commit : 586067e45dd542a117b67ad66d3b14475d8d571f
  Date   : Thu Nov 02 19:10:00 2017
  Subject: Reland "[heap] Temporarily disable concurrent marking."

Bisect Details
  Configuration: mac_retina_perf_bisect
  Benchmark    : octane
  Metric       : Total/Score
  Change       : 1.22% | 35189.5714286 -> 34758.8888889

Revision                           Result                  N
chromium@513689                    35189.6 +- 1121.56      14      good
chromium@513713                    35268.3 +- 887.26       9       good
chromium@513719                    35314.2 +- 596.489      6       good
chromium@513719,v8@a274fc6536      35471.7 +- 513.857      6       good
chromium@513719,v8@694a18781c      35288.6 +- 855.967      9       good
chromium@513719,v8@586067e45d      34608.5 +- 274.688      6       bad       <--
chromium@513720                    34724.9 +- 685.937      9       bad
chromium@513721                    34674.7 +- 431.223      6       bad
chromium@513722                    34536.8 +- 740.372      6       bad
chromium@513725                    34737.2 +- 675.082      9       bad
chromium@513737                    34758.9 +- 704.884      9       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 octane

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8963659887335916656


For feedback, file a bug with component Speed>Bisection