All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=767721

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=4b4947ccda9434cae6f9250f89700a1a86838ed925bb0996bfdf222539035289


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

chromium-rel-mac11

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8967791706399065968

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

Suspected Commit
  Author : Hitoshi Yoshida
  Commit : 3e5db563a65e3968d1e336312ae1bbb85e18321d
  Date   : Mon Sep 11 02:31:08 2017
  Subject: FieldTrial: Add field trial configuration for V8ContextSnapshot

Bisect Details
  Configuration: mac_10_11_perf_bisect
  Benchmark    : system_health.memory_desktop
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:allocated_objects_size_avg/load_search/load_search_baidu
  Change       : 3.77% | 5251489.33333 -> 5449284.0

Revision             Result                  N
chromium@500818      5251489 +- 581.795      6      good
chromium@500825      5251580 +- 48.9898      6      good
chromium@500828      5251580 +- 48.9898      6      good
chromium@500829      5449463 +- 36.5148      6      bad       <--
chromium@500830      5449469 +- 46.188       6      bad
chromium@500831      5449028 +- 1268.89      6      bad
chromium@500844      5449284 +- 1088.34      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 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=load.search.baidu 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/8967791706399065968


For feedback, file a bug with component Speed>Bisection