All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=776169

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=1faecdb86de5331e26699d2f6fe725e0d2288b83aff706ad2b1de8b6ee76023c


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

chromium-rel-win7-gpu-intel

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8965355671404014432

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

Suspected Commit
  Author : Jakob Gruber
  Commit : f7b09b3bdd96b4bd686b413c7a26e13f08ac4601
  Date   : Mon Oct 16 16:04:12 2017
  Subject: Reland "[snapshot] Ship lazy TFJ builtins"

Bisect Details
  Configuration: winx64intel_perf_bisect
  Benchmark    : media.desktop
  Metric       : memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/video.html?src_garden2_10s.webm_seek
  Change       : 10.34% | 5070848.0 -> 5595136.0

Revision                           Result              N
chromium@509259                    5070848 +- 0.0      6      good
chromium@509299                    5070848 +- 0.0      6      good
chromium@509319                    5070848 +- 0.0      6      good
chromium@509324                    5070848 +- 0.0      6      good
chromium@509325                    5070848 +- 0.0      6      good
chromium@509325,v8@972d460f4f      5070848 +- 0.0      6      good
chromium@509325,v8@f7b09b3bdd      5595136 +- 0.0      6      bad       <--
chromium@509325,v8@efa038361d      5595136 +- 0.0      6      bad
chromium@509325,v8@6627b0aaf7      5595136 +- 0.0      6      bad
chromium@509326                    5595136 +- 0.0      6      bad
chromium@509327                    5595136 +- 0.0      6      bad
chromium@509329                    5595136 +- 0.0      6      bad
chromium@509338                    5595136 +- 0.0      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=video.html.src.garden2.10s.webm.seek media.desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8965355671404014432


For feedback, file a bug with component Speed>Bisection