Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 13 Mar 2007 10:59:18 -0500
From:      "Matthew D. Fuller" <fullermd@over-yonder.net>
To:        Doug Poland <doug@polands.org>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: Testing UFS/Snapshots/Quotas on -STABLE
Message-ID:  <20070313155918.GJ56342@over-yonder.net>
In-Reply-To: <58211.69.129.174.18.1173797454.squirrel@email.polands.org>
References:  <58211.69.129.174.18.1173797454.squirrel@email.polands.org>

next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, Mar 13, 2007 at 09:50:54AM -0500 I heard the voice of
Doug Poland, and lo! it spake thus:
> 
> In addition, it appears that compiling support for quotas in the
> kernel will force the Giant lock on UFS and I want to make sure I
> won't have a performance regression on the filesystem.

I can tell you that the impact will range from negligable to
significant, depending on the particular workload.

I have a RELENG_6 box that, for hysterical raisins, has the ports tree
on a partition with quotas, and a large 'portsnap update' gets VERY
jerky.


-- 
Matthew Fuller     (MF4839)   |  fullermd@over-yonder.net
Systems/Network Administrator |  http://www.over-yonder.net/~fullermd/
           On the Internet, nobody can hear you scream.



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20070313155918.GJ56342>