Date: Thu, 19 Jul 2007 09:27:12 -0500 From: Derek Ragona <derek@computinginnovations.com> To: Gabriel Linder <linder@jeuxvideo.com>, freebsd-questions@freebsd.org Subject: Re: Swap size Message-ID: <6.0.0.22.2.20070719091620.024d0518@mail.computinginnovations.com> In-Reply-To: <469F1ABC.6070503@jeuxvideo.com> References: <469F1ABC.6070503@jeuxvideo.com>
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At 03:03 AM 7/19/2007, Gabriel Linder wrote:
>Hi,
>
>I plan to setup FreeBSD 6.2-RELEASE on my Core Duo laptop with 1GB of RAM.
>
>The handbook says "ideal swap size is 2xRAM", so should I use 2GB of swap ?
Yes unless you know how many applications will ever be run and their run
size. The 2xRAM is so you can always have a reasonable performance
allowing swap. You can still run out of swap, and this will cause a
panic. With disks so cheap, why not use 2XRAM?
> This seems a bit huge to me, I never used more than 400MB on Linux.
>If so, is there a limit of swap partition size (or number) on i386 (for
>Linux it's 2GB per partition and 32 partitions max, but I don't know for
>FreeBSD) ?
You can add more swap using a swap file you can check that out doing:
man swapon
I don't believe there is a limit to swap partitions, other than the limit
on other partitions.
I have no knowledge on efficiency of a swap partition vs a swap file.
-Derek
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