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Issue metadata

Status: Duplicate
Merged: issue 680034
Owner: ----
Closed: Jan 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression

Blocked on:
issue 675639



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1.8% regression in memory.top_10_mobile at 442423:442467

Project Member Reported by nzolghadr@chromium.org, Jan 13 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=681038

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwOrcsAoM


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

android-nexus6
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jan 13 2017


=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : memory.top_10_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/foreground/http_en_m_wikipedia_org_wiki_Science

Revision             Result                  N
chromium@442423      7237735 +- 78109.7      21      good
chromium@442467      7227170 +- 63561.6      21      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=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http.en.m.wikipedia.org.wiki.Science memory.top_10_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8990565145494573424

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5238897895800832


| 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 Tests>AutoBisect.  Thank you!
Blockedon: 675639
Blocking on crbug.com/675639 for no memory.top_10_* repro
Project Member

Comment 6 by 42576172...@developer.gserviceaccount.com, Jan 25 2017

Mergedinto: 680034
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : mvstanton
  Commit : 38602f1ff553b32815d34a05cd6d965f4fc20960
  Date   : Mon Jan 09 15:31:00 2017
  Subject: [FeedbackVector] Infrastructure for literal arrays in the vector.

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : memory.top_10_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/foreground/http_en_m_wikipedia_org_wiki_Science
  Change       : 1.98% | 7198326.0 -> 7340797.77778

Revision                           Result                  N
chromium@442191                    7198326 +- 285276       14      good
chromium@442278                    7203965 +- 275608       14      good
chromium@442300                    7164087 +- 60992.3      9       good
chromium@442311                    7189145 +- 239024       14      good
chromium@442312                    7206031 +- 316885       14      good
chromium@442312,v8@e7fc42796c      7199085 +- 274368       14      good
chromium@442312,v8@38602f1ff5      7305278 +- 235391       14      bad       <--
chromium@442313                    7324051 +- 186017       6       bad
chromium@442314                    7306176 +- 136028       6       bad
chromium@442317                    7279599 +- 60755.0      9       bad
chromium@442322                    7312946 +- 186086       9       bad
chromium@442365                    7322432 +- 221236       9       bad
chromium@442539                    7340798 +- 108902       9       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=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests memory.top_10_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8989548204010584624

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4551925694988288


| 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 Tests>AutoBisect.  Thank you!

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