In an attempt to see what swappiness does to the performance of my machine, I tried setting it and experimenting. Well, I don't seem to be able to do that.
$ su - # cd /proc/sys/vm # cat swappiness 60 # echo 40>swappiness
# cat swappiness 60 # echo 75>swappiness
# cat swappiness 60 # uname -a Linux Presario-1 2.6.10-1.771_FC2 #1 Mon Mar 28 00:50:14 EST 2005 i686 i686 i386 GNU/Linux
Mike