Subject: Re: MFS vs TMPFS
To: NetBSD-current <current-users@NetBSD.org>
From: thilo <email@example.com>
Date: 10/05/2005 20:45:16
Is there any advantage of tmpfs if I need mfs to boot the root-filesystem?
(at least I can reuse mfs in /tmp later on)
Perry E. Metzger wrote:
>Marcin Jessa <firstname.lastname@example.org> writes:
>>What would be the advantages of using tmpfs over mfs as memory file
>Others have mentioned part of this, but let me mention something
>others have not: if you sometimes need a big /tmp but mostly you
>don't, tmpfs can win because it can allocate and free memory
>easily. mfs cannot -- it is one fixed size (though it is pageable.)
>The other thing folks haven't mentioned: in theory at least (I don't
>know if this is broken at the moment), mmaps of tmpfs don't allocate
>new pages. That can be a big win in an embedded context.