How to clean RAM cache in Linux
Check free and allocated RAM: #free -m total used free shared buffers cached Mem: 3923 2504 1418 0 144 1882 -/+ buffers/cache: 478 3445 Swap: 0 0 0 Clean the cached RAM: #sync; echo 3 > /proc/sys/vm/drop_caches Check free and allocated RAM: # free -m total used free shared buffers cached Mem: 3923 475 3448 0 3 99 -/+ buffers/cache: 373 3550 Swap: 0 0 0