All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=760514

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=b6fade75207d1d5a30852fed3d4afb67a7c32c25f39a943bd652baa081e7820f


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

chromium-rel-win10
chromium-rel-win7-gpu-ati
chromium-rel-win7-gpu-nvidia
chromium-rel-win7-x64-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8969839429158199760

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

Suspected Commit
  Author : Alexey Kozyatinskiy
  Commit : 0bdc7bbabc291651eedc5c2cd963af4528047f98
  Date   : Fri Aug 25 23:43:42 2017
  Subject: [inspector] improved injected-script-source

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_news/load_news_hackernews
  Change       : 10.25% | 5115904.0 -> 5640192.0

Revision                           Result              N
chromium@497638                    5115904 +- 0.0      6      good
chromium@497648                    5115904 +- 0.0      6      good
chromium@497651                    5115904 +- 0.0      6      good
chromium@497652                    5115904 +- 0.0      6      good
chromium@497652,v8@0bdc7bbabc      5640192 +- 0.0      6      bad       <--
chromium@497652,v8@109e8b98f5      5640192 +- 0.0      6      bad
chromium@497652,v8@24b88776aa      5640192 +- 0.0      6      bad
chromium@497653                    5640192 +- 0.0      6      bad
chromium@497657                    5640192 +- 0.0      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.news.hackernews 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/8969839429158199760


For feedback, file a bug with component Speed>Bisection