All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=777288

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=4d4100966f02081e631899860d2eb19d59b69c0265c4d16c895a48ee29b3dd34


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

chromium-rel-win10
chromium-rel-win7-gpu-ati
chromium-rel-win7-gpu-intel
chromium-rel-win7-gpu-nvidia

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8964961346150137696

=== 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: winx64_10_perf_bisect
  Benchmark    : system_health.memory_desktop
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:effective_size_avg/load_search/load_search_yandex
  Change       : 10.18% | 10297344.0 -> 11345920.0

Revision                           Result                   N
chromium@509275                    10297344 +- 1482910      9       good
chromium@509313                    9889564 +- 1235759       9       good
chromium@509323                    10239090 +- 2154619      9       good
chromium@509325                    10413852 +- 1441130      9       good
chromium@509325,v8@972d460f4f      10334793 +- 2617692      14      good
chromium@509325,v8@f7b09b3bdd      11520683 +- 741455       9       bad       <--
chromium@509325,v8@efa038361d      11171157 +- 1048576      9       bad
chromium@509325,v8@6627b0aaf7      11520683 +- 957215       6       bad
chromium@509326                    11233573 +- 1515650      14      bad
chromium@509328                    11233573 +- 1687291      14      bad
chromium@509332                    11229412 +- 1235759      9       bad
chromium@509350                    11345920 +- 741455       6       bad

Please refer to the following doc on diagnosing memory regressions:
  https://chromium.googlesource.com/chromium/src/+/master/docs/memory-infra/memory_benchmarks.md

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=load.search.yandex system_health.memory_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8964961346150137696


For feedback, file a bug with component Speed>Bisection