swap – memory usage statistics and swap file control
n memory n pagesize n kernel n/m user n/m swap a/n/m kernel malloc a/n/m kernel draw a/n/m kernel secret
These are total memory (bytes), system page size (bytes),
kernel memory (pages), user memory (pages), swap space (pages),
kernel malloced data (bytes), kernel graphics data (bytes)
and kernel secret data (bytes).
To turn on swapping, write to
Only the hostowner is allowed to enable swapping. The pages written to the swap file are transparently encrypted by the kernel using a random key.