All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=673331

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgp9W0tgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgp6uR8wsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgx5Hs_QsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgp7m5qQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgp5T3owoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgx6nA9wsM


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

android-nexus5
android-nexus9

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8993472373417273376

===== BISECT JOB RESULTS =====
Status: failed


=== Bisection aborted ===
The bisect was aborted because Infra Failure: Step('Working on revision chromium@435599,v8@a328143eb3.install ChromePublic.apk') returned 2
Please contact the the team (see below) if you believe this is in error.

===== TESTED REVISIONS =====
Revision         Mean     Std Dev  N  Good?
chromium@435596  3098457  54213.9  9  good
chromium@435598  3110429  54659.8  6  good
chromium@435599  3115998  50766.4  6  good
chromium@435600  3182049  75971.4  6  bad
chromium@435604  3187177  65159.9  6  bad
chromium@435612  3170500  56165.0  6  bad
chromium@435628  3148195  53395.3  6  bad

Bisect job ran on: android_nexus9_perf_bisect
Bug ID: 673331

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.news.flipboard v8.browsing_mobile_ignition
Test Metric: memory:chrome:renderer_processes:reported_by_chrome:code_and_metadata_size_avg/browse_news/browse_news_flipboard
Relative Change: 1.61%

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus9_perf_bisect/builds/2323
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8993472373417273376


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5244856606130176

| 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!

 crbug.com/672529  for the ChromePublic.apk failure.

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8993101370860099984

===== BISECT JOB RESULTS =====
Status: completed


===== SUSPECTED CL(s) =====
Subject : [regexp] Refactor RegExp.prototype.exec
Author  : jgruber
Commit description:
  
This refactors portions of exec into a new function without RegExpResult
construction, which will be used in the future by test, @@match, and @@search
fast paths.

Unnecessary ToString and ToLength calls as well as repeated map checks were
removed.

BUG= v8:5339 

Review-Url: https://codereview.chromium.org/2540153002
Cr-Commit-Position: refs/heads/master@{#41414}
Commit  : 65b2ab90ff1cbc90f73568c7ec9d72cb760ac6c8
Date    : Thu Dec 01 09:36:08 2016


===== TESTED REVISIONS =====
Revision                       Mean     Std Dev  N  Good?
chromium@435593                3066369  74508.5  6  good
chromium@435597                3084782  59035.2  6  good
chromium@435599                3109984  97859.2  9  good
chromium@435599,v8@91ea744c74  3101669  33498.2  6  good
chromium@435599,v8@65b2ab90ff  3184150  86811.7  6  bad    <--
chromium@435599,v8@a328143eb3  3184738  39931.3  6  bad
chromium@435600                3203100  50581.0  6  bad
chromium@435601                3177359  79493.9  6  bad
chromium@435608                3179188  78115.0  6  bad
chromium@435622                3184062  37263.3  6  bad
chromium@435650                3163539  67352.9  6  bad
chromium@435707                3154679  103257   6  bad

Bisect job ran on: android_nexus9_perf_bisect
Bug ID: 673331

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.news.flipboard v8.browsing_mobile_ignition
Test Metric: memory:chrome:renderer_processes:reported_by_chrome:v8:code_and_metadata_size_avg/browse_news/browse_news_flipboard
Relative Change: 2.88%

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus9_perf_bisect/builds/2330
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8993101370860099984


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5773714635882496

| 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!

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8982640103130230992

=== BISECT JOB RESULTS ===
Bisect failed unexpectedly

Bisect was aborted with the following:
  Infra Failure: Step('Working on revision chromium@435599,v8@a328143eb3.install ChromePublic.apk') returned 2


Bisect Details
  Configuration: android_nexus9_perf_bisect
  Benchmark    : v8.browsing_mobile_ignition
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:code_and_metadata_size_avg/browse_news/browse_news_flipboard

Revision             Result                  N
chromium@435596      3098457 +- 54213.9      9      good
chromium@435598      3110429 +- 54659.8      6      good
chromium@435599      3115998 +- 50766.4      6      good
chromium@435600      3182049 +- 75971.4      6      bad
chromium@435604      3187177 +- 65159.9      6      bad
chromium@435612      3170500 +- 56165.0      6      bad
chromium@435628      3148195 +- 53395.3      6      bad

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=browse.news.flipboard v8.browsing_mobile_ignition

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8982640103130230992

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5244856606130176


| 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!