Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8975556092016527200

Increasing priority since the regression is huge.

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

Suspected Commit
  Author : perezju
  Commit : b4eb70c319cb0f38d1a7764e7d9fb56dc96f8bcf
  Date   : Mon Jun 26 14:25:41 2017
  Subject: [System Health] Extend dump time to 5 seconds

Bisect Details
  Configuration: win_8_perf_bisect
  Benchmark    : system_health.memory_desktop
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:effective_size_avg/load_news/load_news_qq
  Change       : 91.10% | 63007402.6667 -> 120408746.667

Revision                                 Result                     N
chromium@482241                          63007403 +- 1558232        6      good
chromium@482269                          62570496 +- 1961706        6      good
chromium@482276                          62395733 +- 2532552        6      good
chromium@482280                          63356928 +- 1777947        6      good
chromium@482282                          69211477 +- 23124211       6      good
chromium@482282,catapult@b4eb70c319      127645013 +- 63181413      6      bad       <--
chromium@482283                          143761408 +- 69372107      6      bad
chromium@482296                          120408747 +- 36931131      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.news.qq system_health.memory_desktop

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8975556092016527200

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4754455074963456


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