Date: Tue, 31 May 2005 11:48:19 +1000 (EST) From: Bruce Evans <bde@zeta.org.au> To: Ken Gunderson <kgunders@teamcool.net> Cc: freebsd-amd64@FreeBSD.org Subject: Re: swap sizing Message-ID: <20050531113955.D91505@delplex.bde.org> In-Reply-To: <20050530090525.246b0c35.kgunders@teamcool.net> References: <20050530090525.246b0c35.kgunders@teamcool.net>
next in thread | previous in thread | raw e-mail | index | archive | help
On Mon, 30 May 2005, Ken Gunderson wrote: > On larger systems sporting several gigs of ram, what it the recommended > swap scheme? I'm aware of the 2x ram rule of thumb and also that this > rule is considered "old school" by many. I don't use any except on machines with <= 64MB of RAM. > And of course that you need > at least as much swap as ram if you want to get a full dump... Of course not. The dump can be written to any disk device that you don't care about overwriting. > But other than that it seems we pretty much don't want/need to be > swapping at all on modern machines. Curious what folks are doing in the > modern world with larger systems. Swap is still needed if you run bloatware or lots of processes. The only significant differences between a machine with 3*N bytes of RAM and one with N bytes of RAM and 2*N bytes of swap are that the former costs more and is much faster if all of the allocated (RAM+swap) memory is actually used. Bruce
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20050531113955.D91505>