All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=651113

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgpdOEqgoM


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

android-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9000260642344622896

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


===== TESTED REVISIONS =====
Revision                       Mean     Std Dev  N  Good?
chromium@420830                19845.6  47.7473  5  good
chromium@420830,v8@84145a149b  19931.4  175.635  5  good
chromium@420830,v8@73518a9070  19835.4  22.1766  5  good
chromium@420830,v8@85575cd8ee  20315.0  14.4568  5  bad
chromium@420831                20311.4  48.1124  5  bad
chromium@420832                20272.2  178.934  5  bad
chromium@420833                20343.6  20.0823  5  bad
chromium@420835                20343.8  34.9814  5  bad
chromium@420839                20347.2  41.6137  5  bad

Bisect job ran on: android_nexus6_perf_bisect
Bug ID: 651113

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests storage.indexeddb_endure
Test Metric: vm_private_dirty_final_renderer/vm_private_dirty_final_renderer
Relative Change: 2.53%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus6_perf_bisect/builds/2577
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9000260642344622896


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5017427849510912

| 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/9000237870920970608

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


===== SUSPECTED CL(s) =====
Subject : Revert of [api] Clean up scopes and precheck instantiations cache (patchset #3 id:40001 of https://codereview.chromium.org/2206773003/ )
Author  : cbruni
Commit description:
  
Reason for revert:
Regresses API see go/v8-startup-api

Original issue's description:
> [api] Clean up scopes and precheck instantiations cache
>
> Make sure all the scopes used in api-natives.cc have inlineable constructors
> and destructors. Additionally directly precheck the instantiations cache before
> trying to enter the InvokeScope which sets the save_context.
>
> BUG=chromium:630217
>
> Committed: https://crrev.com/a2496b942cad524f0f3144b107936eaa9a7c9fd5
> Cr-Commit-Position: refs/heads/master@{#38346}

TBR=yangguo@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=chromium:630217,  chromium:635912 

Review-Url: https://codereview.chromium.org/2366903003
Cr-Commit-Position: refs/heads/master@{#39680}
Commit  : 85575cd8ee33fa3dd49ffc58de6e0b958df29094
Date    : Fri Sep 23 16:01:35 2016


===== TESTED REVISIONS =====
Revision                       Mean     Std Dev  N  Good?
chromium@420830                19884.8  55.5941  5  good
chromium@420830,v8@84145a149b  19850.2  27.7254  5  good
chromium@420830,v8@73518a9070  19808.9  42.3976  8  good
chromium@420830,v8@76eb976a67  19839.6  46.161   8  good
chromium@420830,v8@12918397b4  19826.4  30.4352  5  good
chromium@420830,v8@85575cd8ee  20244.8  191.663  5  bad    <--
chromium@420831                20357.0  19.5064  5  bad
chromium@420832                20315.6  37.5806  5  bad
chromium@420833                20313.6  43.5006  5  bad
chromium@420835                20311.6  20.1196  5  bad
chromium@420839                20341.2  28.578   5  bad

Bisect job ran on: android_nexus6_perf_bisect
Bug ID: 651113

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests storage.indexeddb_endure
Test Metric: vm_private_dirty_final_renderer/vm_private_dirty_final_renderer
Relative Change: 2.30%
Score: 99.0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus6_perf_bisect/builds/2579
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9000260642344622896


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5017427849510912

| 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!