On 1/30/2015 1:21 AM, Patrick Bervoets wrote: > free > total used free shared buffers cached > Mem: 48218 31895 16323 0 108 519 > -/+ buffers/cache: 31267 16951 > Swap: 7951 476 7475 thats an unusually small amount of 'cached'... I usually see the disk cache as 30-50% of the total memory. does this system not use much disk IO ? -- john r pierce 37N 122W somewhere on the middle of the left coast