Subject: Re: Do some disk accesses miss the UVM?
To: None <email@example.com>
From: Perry E. Metzger <firstname.lastname@example.org>
Date: 01/25/2002 00:12:57
Jason R Thorpe <email@example.com> writes:
> Since no VM operations are defined for metadata, there isn't exactly
> a pressing need for it, and putting metadata into the page cache is
> somewhat complicated.
Well, the need is that it would be good for us to be able to do two
find(1)s of a large tree and have the disk only spin on the first
one. If you have the RAM, it is far less costly to cache all that
data. This is of great practical importance at times for performance.
Perry E. Metzger firstname.lastname@example.org
NetBSD Development, Support & CDs. http://www.wasabisystems.com/