free -m total used free shared buffers cached Mem: 3722 3011 710 0 305 1352 -/+ buffers/cache: 1353 2369 Swap: 2047 21 2025 Do I genuinely require to increase the memory of this system? On 28 June 2011 13:19, Jenny Lee <bodycare_5@xxxxxxxx> wrote: > >> Good Lord!!! >> >> The amount of free RAM in my system keeps decreasing, What happens >> when it RAM reaches to zero? Is it that it remove old object and free >> up space? > > It is probably being used by buffer and cache. > > free -m <enter> > > should show you how much available memory and cache there is. > > Jenny