Manually remove the Linux Swap partition

Physical memory approaches saturation, the system automatically will not be used to the memory dump file Swap but using Swap rate of 30% of the time has a certain impact on system performance possible. But when the re-release of physical memory, stored in other applications Swap partition will not return to physical memory, it will be some impact, then you can consider manually refresh the Swap Partition

Clear (close clears)

swapoff -a

reopen

swapon -a

Refresh

swapoff -a && swapon -a