Date: Tue, 1 Nov 2005 17:13:13 +0200 From: Vladimir Tsvetkov <npacemo@gmail.com> To: Ian Lord <mailing-lists@msdi.ca> Cc: freebsd-questions@freebsd.org Subject: Re: Swap space Message-ID: <666bdb140511010713x1374bde5n@mail.gmail.com> In-Reply-To: <6.2.3.4.2.20051101094812.030e2d20@pop.msdi.ca> References: <6.2.3.4.2.20051101094812.030e2d20@pop.msdi.ca>
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> Hi, > > I just bought 4 servers with 4 gigs of ram, the documentation > proposes to use 2 to 3 times the amount of ram for swap... I don't > think 12 gigs of swap would be useful lol, but do I really need to > put 4 gigs of ram. (It might be useful for kernel dump but...) > > What do you guys do with swap space in this scenario ? It depends on how big is the address space for your machines. 32-bit machines can address 4GB of memory, so it's reasonable to use 2 or 3 times the amount of RAM space (if you hawe 256MB or 512MB - the swap should be 768MB or 1GB), but if you have 32bit machines with 4GB of memory there is no need to use more than 4GB for swap. 64-bit machines can address 2^64 bytes which is a very big address space, so you should use the guidelines in the documentation (FreeBSD Handbook). Best regards, Vladimir
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