Mark Phillips wrote: > How does it know how much memory is to be used for caching? Can you set > this? (I presume the caching software is part of the kernel.) The kernel likes to use a certian percentage of yuor memory for cache, if it's free. It's tunable by writing to /proc/sys/vm/freepages (/usr/src/linux/Documentation/sysctl/vm.txt for docs). -- see shy jo