buffer memory in server got increased after taking backups from multiple servers using
rsync. This disk got almost full, removed the backups. As far as I understand
buffers shoot up if we perform a lot of direct disk IO.
rsync was done, but
buffer memory is still not freed up after around 8 hours.
total used free shared buffers cached Mem: 7.7G 6.9G 761M 2.6M 3.7G 2.1G -/+ buffers/cache: 1.2G 6.5G Swap: 7.9G 411M 7.5G
This is a gaming test server, which is currently running. Is it safe to clear them? How to clear
buffer without clearing
Also I am concerned about ::
-/+ buffers/cache: 1.2G 6.5G . What is it?