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

Issue 795319 link

Starred by 1 user

Issue metadata

Status: WontFix
Owner:
Buried. Ping if important.
Closed: Jan 2018
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



Sign in to add a comment

4.2% regression in thread_times.key_mobile_sites_smooth at 523361:523387

Project Member Reported by chiniforooshan@chromium.org, Dec 15 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Dec 15 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=795319

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=ba6d8e0e8fb9e0474724b72b3803737ca5c3cb168a30719b7a5dc36d62a94db4


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

android-webview-nexus6
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Dec 15 2017

Cc: mkwst@chromium.org
Owner: mkwst@chromium.org
Status: Assigned (was: Untriaged)

=== Auto-CCing suspected CL author mkwst@chromium.org ===

Hi mkwst@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


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

Suspected Commit
  Author : Mike West
  Commit : 01c25d47d2d22456368363e576083d766eedf8f6
  Date   : Tue Dec 12 09:31:00 2017
  Subject: Encode ' ', '"', '<', '>', and '`' in URL fragments.

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : thread_times.key_mobile_sites_smooth
  Metric       : thread_raster_cpu_time_per_frame/http___cuteoverload.com
  Change       : 2.87% | 2.61301965877 -> 2.6878988992

Revision             Result                    N
chromium@523360      2.61302 +- 0.0172986      6      good
chromium@523374      2.61039 +- 0.0457019      6      good
chromium@523381      2.62462 +- 0.0259284      6      good
chromium@523382      2.6209 +- 0.0138882       6      good
chromium@523383      2.68766 +- 0.027608       6      bad       <--
chromium@523384      2.70467 +- 0.0440131      6      bad
chromium@523387      2.6879 +- 0.043542        6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http...cuteoverload.com thread_times.key_mobile_sites_smooth

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8960120558916701920


For feedback, file a bug with component Speed>Bisection
Status: WontFix (was: Assigned)
This looks to be within the noise.

Sign in to add a comment