All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=740440

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=7f2491c3865751700da9d2efbe567fb0e427a7875960cd94c599b2545a2100d0


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

win-high-dpi

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8974476383382909840

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

Suspected Commit
  Author : Yutaka Hirano
  Commit : 84047549ac37bab70d7306566c912e59131f3e1f
  Date   : Mon Jun 19 04:16:15 2017
  Subject: [Loading] Save one post-task when the data pipe is ready on arrival

Bisect Details
  Configuration: winx64_high_dpi_perf_bisect
  Benchmark    : system_health.memory_desktop
  Metric       : memory:chrome:all_processes:reported_by_os:system_memory:proportional_resident_size_avg/load_news/load_news_hackernews
  Change       : 7.41% | 239396060.0 -> 221656443.286

Revision             Result                     N
chromium@480312      239396060 +- 12186155      14      good
chromium@480336      240667414 +- 11636749      14      good
chromium@480339      237859590 +- 14186753      21      good
chromium@480341      238751063 +- 15947438      14      good
chromium@480342      223341552 +- 59887454      21      bad       <--
chromium@480348      215672234 +- 31018150      14      bad
chromium@480359      221656443 +- 49939761      14      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/8974476383382909840


For feedback, file a bug with component Speed>Bisection