Swap
Turn off paging
(Actually, unmount all paging files/partitions.)
That usually causes programs to crowd out the caches, but it might also make the Out-Of-Memory killer kill a few of your hungriest processes. (Like firefox.)
swapoff -a
To bring it back on:
swapon -a
Turn off swap permanently
- Open
/etc/fstab
- Comment out the
swap
mounting line - Save and Close