I'm about ready to setup a machine with 512 MB of RAM and I'm wondering how much swap space I should allocate. I've read about the 2x rule, but 1 GB of swap seems somewhat excessive. I've also been told that Linux will not use more than 128 MB of swap. So, how much should I allocate? Can I change it later without having to reinstall everything? The machine is a dual-processor workstation that will be used by 4-8 people concurrently for number crunching and all sorts of simulations.
Also, is it possible to put /tmp within swap? Is that the default? Thanks, Max