DragonFly BSD
DragonFly bugs List (threaded) for 2013-01
[Date Prev][Date Next]  [Thread Prev][Thread Next]  [Date Index][Thread Index]

[DragonFlyBSD - Bug #2502] tmpfs(5) not fully MPSAFE


From: Francois Tigeot via Redmine <bugtracker-admin@xxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 28 Jan 2013 09:21:29 -0800

Issue #2502 has been reported by ftigeot.

----------------------------------------
Bug #2502: tmpfs(5) not fully MPSAFE
http://bugs.dragonflybsd.org/issues/2502

Author: ftigeot
Status: New
Priority: Normal
Assignee: 
Category: 
Target version: 


Bulk building packages with ports-mgmt/poudriere on a 16 cores/32 threads machine is very slow.

The system exhibits high level of mp_token contention.
The functions grabbing it the most are:

vop_inactive vop_readdir vop_setattr vop_ncreate
vop_close vop_nresolv vop_nlink vop_putpage

with vop_inactive() by far the worst offender.

As the only non fully-MPSAFE used filesystem, tmpfs(5) is an obvious culprit.


-- 
You have received this notification because you have either subscribed to it, or are involved in it.
To change your notification preferences, please click here: http://bugs.dragonflybsd.org/my/account



[Date Prev][Date Next]  [Thread Prev][Thread Next]  [Date Index][Thread Index]