New issue
Advanced search Search tips
Note: Color blocks (like or ) mean that a user may not be available. Tooltip shows the reason.

Issue 645368 link

Starred by 1 user

Issue metadata

Status: Duplicate
Merged: issue 645363
Owner:
ooo
Closed: Sep 2016
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



Sign in to add a comment

12.5%-52.5% regression in blink_perf.svg at 417230:417248

Project Member Reported by briander...@chromium.org, Sep 9 2016

Issue description

See the link to graphs below.
 
Mergedinto: 645363
Status: Duplicate (was: Assigned)

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


===== SUSPECTED CL(s) =====
Subject : [WeakMemoryCache] Make references from MemoryCache to Resource Weak
Author  : hiroshige
Commit description:
  
Design doc (Step 1):
https://docs.google.com/document/d/1Pj4vzxzCKC_11SugdJ_x7wq7ErE-pHtf4w4FLKdcF7g/edit?usp=sharing

This cl relands
- https://codereview.chromium.org/1915113005
- https://codereview.chromium.org/2066763002
except for code related to Field-Trial or SharedBuffer::unlock().

BUG=603462

Review-Url: https://codereview.chromium.org/2296913003
Cr-Commit-Position: refs/heads/master@{#417245}
Commit  : 581fd42e219de5510f0fd7729e7b00a411ff68a8
Date    : Thu Sep 08 10:59:20 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev    N  Good?
chromium@417229  22.1174  0.472337   5  good
chromium@417239  22.1454  0.223719   5  good
chromium@417244  21.7812  0.0942269  5  good
chromium@417245  33.6934  0.318384   5  bad    <--
chromium@417246  34.105   0.693549   5  bad
chromium@417248  34.0284  0.0813591  5  bad

Bisect job ran on: winx64intel_perf_bisect
Bug ID: 645368

Test Command: src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --also-run-disabled-tests blink_perf.svg
Test Metric: FoodLeifLodahl/FoodLeifLodahl
Relative Change: 53.85%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/winx64intel_perf_bisect/builds/1165
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9002017963418817600


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5339868501114880

| 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!

Sign in to add a comment