All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=763277

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=6e5f5ce4e02a4b97f916b7630ce3c231c5aa83e13cbd890751b368714129c08c


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

android-nexus5X
android-nexus7v2
chromium-rel-mac11
chromium-rel-mac11-pro
win-high-dpi

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8969038224302833088

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

Suspected Commit
  Author : Sunny Sachanandani
  Commit : 2eb3c8ac7ffc6840dc07f5e8312576e107eece23
  Date   : Wed Sep 06 02:01:21 2017
  Subject: cc: Flush after every tile task set completes.

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/browse_social/browse_social_twitter_infinite_scroll
  Change       : 20.88% | 21359352.0 -> 25819204.0

Revision             Result                   N
chromium@499670      21359352 +- 73375.9      6      good
chromium@499772      21358943 +- 71959.7      6      good
chromium@499823      21308328 +- 60081.8      6      good
chromium@499836      21278375 +- 63651.0      6      good
chromium@499843      21276680 +- 50195.3      6      good
chromium@499844      21284943 +- 47955.8      6      good
chromium@499845      25834108 +- 91649.6      6      bad       <--
chromium@499846      25743896 +- 327464       6      bad
chromium@499849      25024204 +- 3969241      6      bad
chromium@499874      25819204 +- 98686.1      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=browse.social.twitter.infinite.scroll 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/8969038224302833088


For feedback, file a bug with component Speed>Bisection