Subject: Re: ccd/fsck problem
To: Jukka Marin <jmarin@teeri.jmp.fi>
From: David <david@southern.com>
List: current-users
Date: 01/27/1996 12:04:09
On Fri, 26 Jan 1996, Jukka Marin wrote:
(Just replying to the swap question as I have never used ccd :)
> [..ccd question..]
>
> Another quick one: Does the swap partition _always_ have to be at least
> twice the size of physical RAM? The operator has created a 96 MB swap,
> but the machine has 64 MB of phys. RAM and I'm wondering....
>
NetBSD does not preallocate swap (which has its own problems when
you run out of virtual memory), so you do not _need_ any swap at all
(a 64Mb ram machine with no swap would be a better box than a 32mb ram
with 32mb swap :), but its obviously sensible to allocate some
Work out what you expect your max virtual memory usage would be,
then double it (paranoia) and subtract your ram - thats your swap
size :)
FYI: 64Mb *BSD sparc with 16 users:
(muon ~)14# pstat -s
Device 1K-blocks Used Avail Capacity Type
/dev/sd0b 103500 1108 102392 1% Interleaved
(damn, thats over a megabyte of swap used :)
David/abs (david@mono.org)
+44 181 888 8949 System Manager, Southern Studios Ltd, Box 59, London N22 1AR
>=- Microsoft asks you where you want to go. Unix gets you there -=<
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