On Wed, 2008-02-27 at 07:40 -0800, Tom Spec wrote: > Is there a kernel parameter or something I can tune to limit the > amount of memory that will be used for cache (i.e. 144 in this > example)? Let's say I never wanted that to go past 64. > > free -m > total used free shared buffers > cached > Mem: 503 399 104 0 67 > 144 > -/+ buffers/cache: 187 315 > Swap: 511 0 511 > I assume that you understand that memory is being used for cache - as long it's not needed elsewhere, right? As for your question, you can manually clear the cache by issuing the following command: (as root) $ echo 3 > /proc/sys/vm/drop_caches - Gilboa
