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From: paul@xciv.org (Paul Civati)
Newsgroups: comp.unix.bsd.freebsd.misc,comp.unix.bsd.386bsd.misc,comp.unix.bsd.netbsd.misc,comp.unix.bsd.misc
Subject: Re: increase swap space
Date: 25 Sep 1996 20:43:35 GMT
Organization: XCIV
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Message-ID: <52c5hn$7s@xciv.demon.co.uk>
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In article <52amig$nu@klemm.gtn.com>,
andreas@klemm.gtn.com (Andreas Klemm) writes:
>> You can't reduce the filesystem size easily, but you can create a file on
>> your 8Gb partition w/
>>
>> dd if=/dev/zero of=/my8gbdisk/swapfile bs=1048576 count=100
>>
>> (for a 100Mb file) and then use vnconfig and swapon.
>
> To use this swap file via vnconfig and swapon he has certainly
> to compile and install a new kernel, where the vnode drivers is
> enabled.
It's also worth noting (if you're interested in such things ;) that
AIUI there's a performance hit for using swapfiles as opposed to a
dedicated swap partition as the swapping has to go through the filesystem
code rather than a raw partition.
In cases where you need more swap though and can't provide another swap
partition then a swapfile is the solution.
(The number of SunOS boxes I've seen with a rather large file called
something like 'extra.swap.do.not.remove'. ;)
-Paul-
--
Paul Civati =O= Home: paul@xciv.org =O= http://www.xciv.org/
London UK =O= Home: paul@xciv.demon.co.uk =O= Slackware is.