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

Issue 797418 link

Starred by 1 user
Status: Fixed
Owner:
yangguo@chromium.org
Closed: Jan 2018
Cc:
bmeu...@chromium.org
yangguo@chromium.org
█ briander...@chromium.org
█ hpayer@chromium.org
verwa...@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



Sign in to add a comment

1.8% regression in system_health.memory_desktop at 525008:525074

Project Member Reported by briander...@chromium.org, Dec 22 2017 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Dec 22 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=797418

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=b756b2d29e4815089b81628a88d6d8cca35ef06c2f2ffdfe39e48bc6da01292c


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

chromium-rel-win10
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Dec 22 2017 

📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/148e81b1040000

Comment 5 by sullivan@chromium.org, Jan 24 2018 

Trying a bisect over a wider range.
Project Member

Comment 6 by 42576172...@developer.gserviceaccount.com, Jan 24 2018

Cc: bmeu...@chromium.org hpayer@chromium.org verwa...@chromium.org yangguo@chromium.org
Owner: yangguo@chromium.org
Status: Assigned (was: Untriaged)
📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/14bdf234840000

Leave spaces between instance types.
By yangguo@chromium.org · Wed Dec 20 07:34:39 2017
v8 @ 9c6bc7afc0f8a62e24df92d72e41f2f9d590e023

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions

Comment 7 by yangguo@chromium.org, Jan 26 2018

Status: Fixed (was: Assigned)
Already addressed with these patches:

https://chromium.googlesource.com/v8/v8/+/a7c85f33c14321324301b645507ea90a3322c167
https://chromium.googlesource.com/v8/v8/+/c8736f689967c38afe940baa7839cc0b4afd888c

The graph also has already recovered on December 27th, as expected.
►

Sign in to add a comment