All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=728703

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxvaR-wsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxovLrgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg-p-jlQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxuzy6QoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghvLqmwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghofH5wkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxpqxuQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxuSrsQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxoTj9wgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxqfp7ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxqCnqQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxqe9vwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgpriLvQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxqy8-wgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghv3-2goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgprjVrAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxsmmoAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxpqxuQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgpsDNsAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxqGc8AsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxovVtwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghsO0jAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxpXIrAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghteKsgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxsW0xAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxuT1oAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxoDZ-QgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghtnT_QgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxvzHoQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxqSuowkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxo7DuAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghv2QgwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxq6StgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghv2QgwgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxozY9gsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghvLq6wsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxsqMtwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxsfstQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxujEkggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghueT_wgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxpKU5gkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxpWGogkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg-rrq2QoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxuOqqgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxqH66QgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxo6kvwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxoeuoAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg-qWV4AkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxoeyvgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghseM7woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxoekrwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghrPwtAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxvv_tgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghtbr8gsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxtLc-AoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghpqcuwgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxpX1qgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxsrl4QgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxtiinQgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghuG4kQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxqympgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg-oO88gsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg-vyorgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxti2vAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxtLc-AgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxvCekQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghoepmwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxrSp-AgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghsbCpggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghu6P6QoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghpq_kQgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghpq_4QsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghrWloQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghojs3gkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghu-dhQgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghu-d-QsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghuO5tQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghrOsrQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxuWj5AoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxpSO9QgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghuXE8goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxvb_7goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghv3-6gsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghv6XpgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxuXXtQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxpjM_wgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghrXPqQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghqe4pAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghsbYmwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxqbzlggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghrDcqQgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxrHTvwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg-vyorgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghvuf7QsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghu6P6QgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgho6E4gsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg-o_-owkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgho6E4gkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghozGowsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxtSV9wgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgxpja4QoM,ag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Bot(s) for this bug's original alert(s):

win-high-dpi

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8977968824514366000

=== Auto-CCing suspected CL author thakis@chromium.org ===

Hi thakis@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


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

Suspected Commit
  Author : thakis
  Commit : 5ea5799ced8c179ee57cf877d370e763e76d819c
  Date   : Mon May 29 15:14:30 2017
  Subject: Revert of Changing default Windows compiler to VS2017 (patchset #1 id:1 of https://codereview.chromium.org/2877993002/ )

Bisect Details
  Configuration: winx64_high_dpi_perf_bisect
  Benchmark    : media.tough_video_cases_tbmv2
  Metric       : memory:chrome:renderer_processes:reported_by_os:proportional_resident_size_max/video.html?src_tulip2.ogg_type_audio
  Change       : 1.46% | 40043540.6667 -> 40627324.8333

Revision             Result                  N
chromium@475315      40043541 +- 277712      6      good
chromium@475338      40072702 +- 261601      6      good
chromium@475349      40060851 +- 336439      6      good
chromium@475352      40038395 +- 225093      6      good
chromium@475353      40111985 +- 150469      6      good
chromium@475354      40664489 +- 157468      6      bad       <--
chromium@475355      40726125 +- 150718      6      bad
chromium@475360      40627325 +- 214301      6      bad

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=video.html.src.tulip2.ogg.type.audio media.tough_video_cases_tbmv2

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977968824514366000

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4864685326729216


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!

This was the revert of a toolchain flip; if that relands we'll get this back.

brucedawson, looks like 2017 makes some things (1-2%) faster too!

 Issue 729705  has been merged into this issue.

 Issue 733214  has been merged into this issue.

 Issue 733575  has been merged into this issue.