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Issue 736491 link

Starred by 1 user
Status: Duplicate
Merged: issue 735649
Owner: ----
Closed: Jun 2017
Cc:
wolenetz@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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1.9%-35.9% regression in media.tough_video_cases_tbmv2 at 480772:480903

Project Member Reported by wolenetz@chromium.org, Jun 23 2017 
Large group (about 125) alerts - spot checking the graphs, the subset of graphs that successfully loaded have what looks like legit regressions, though near the beginning of the recorded data -- bisecting.

Comment 1 by wolenetz@chromium.org, Jun 23 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=736491

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzoCKowkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjrqc7wsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjsXKpAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjtzEnggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjpHvuAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjvG7nAgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgju3o5AsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjv264AgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzpKqlAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjvml8ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgztS_nAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjuOF5wkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzsjjvQgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjvjx9AsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjuOF5woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg9umv2woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzvmfqAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzsjj3QsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjvSl2ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjv2fpAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjpHz6QgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzrDJ8QoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjs_OhwgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjpP84AgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjr-quwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzqi8sgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzuLC9gsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjub7-QkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgju7lnQgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjvCekAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzpbvsAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjtHWrQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjvvIgwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjru3rAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjuP3rwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjvPOjAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjoOp4gsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzsyQqwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjsOM5gsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjvOkhAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjpve7QsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjraU6QgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjrex4woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgztL8qgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzqSF0QsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjsWe9QoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjtGitAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjubW4AkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzpblvwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjv26oAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzsjjrQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjoOp4goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjr-PvwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjs-D9woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzvD0tQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzsGeuQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzpTy-goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzpaBrgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjp3y5ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjt-HogkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjtSV9goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjvvI_QsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzsGeuQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzuSm9AkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjuLN8gkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjoPd8woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzpbMpgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjuOFpwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjoPHqgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzqST8AsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzpTX_goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgztLbrgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzpKq5AsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzpS59gkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzrDd6AgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg9o_VwQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzqb6oAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgztKxpgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzrT9-wsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzsbZugsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzuTN_AgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgztKxpgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzuDs-wgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjt704AkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjr395woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjrfb6wsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgztLNtwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjrS26AoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjqWoswsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzpSA8gsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjsn_lQgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjr-quwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjqXRlgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzqH_twoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzpbQuwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjuPKqwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgjpXhsgoM


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

chromium-rel-mac11
chromium-rel-mac11-air
chromium-rel-mac12
chromium-rel-mac12-mini-8gb
chromium-rel-win7-x64-dual

Comment 3 by wolenetz@chromium.org, Jun 23 2017 

#1 contains only 97 alerts of the original ~125 (UI didn't load all the selected ones any way I tried it). I added the remainder to this bug after spot-checking them, too.
Project Member

Comment 4 by 42576172...@developer.gserviceaccount.com, Jun 23 2017

Mergedinto: 735649
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : hpayer
  Commit : 0d2ed6c3287ec48ee06ec1b69287ed4bf0dd60d7
  Date   : Mon Jun 19 10:16:13 2017
  Subject: [heap] Allow a minimum semi-space size of 512K.

Bisect Details
  Configuration: mac_10_11_perf_bisect
  Benchmark    : media.tough_video_cases_tbmv2
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:new_space:effective_size_avg/video.html?src_crowd2160.mp4
  Change       : 39.32% | 22405.3333333 -> 13594.6666667

Revision                           Result                  N
chromium@480792                    22405.3 +- 1526.41      6      good
chromium@480814                    22680.0 +- 1401.39      6      good
chromium@480820                    22805.3 +- 1091.21      6      good
chromium@480821                    22058.7 +- 1077.04      6      good
chromium@480821,v8@8a32788f39      22586.7 +- 1449.69      6      good
chromium@480821,v8@f626d5df7e      22786.7 +- 1073.41      6      good
chromium@480821,v8@bc717ae84b      22680.0 +- 1494.22      6      good
chromium@480821,v8@0d2ed6c328      14282.7 +- 129.326      6      bad       <--
chromium@480821,v8@d6c9e534c8      13901.3 +- 1365.99      6      bad
chromium@480821,v8@2325ef535f      14090.7 +- 1217.19      6      bad
chromium@480822                    13882.7 +- 1335.15      6      bad
chromium@480823                    13920.0 +- 1487.91      6      bad
chromium@480825                    14064.0 +- 916.899      6      bad
chromium@480836                    13853.3 +- 1467.2       6      bad
chromium@480879                    13594.7 +- 1266.26      6      bad

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=video.html.src.crowd2160.mp4 media.tough_video_cases_tbmv2

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8975963484672086704

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5861241370705920


| 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!
►

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