3 ms·

It is indeed absurd, when swapping can be avoided entirely by setting kernel swappiness to 0: sysctl -w vm.swappiness=0 to make permanent, set vm.swappiness=0

by darkr 12y ago

It is indeed absurd, when swapping can be avoided entirely by setting kernel swappiness to 0: sysctl -w vm.swappiness=0 to make permanent, set vm.swappiness=0 in /etc/sysctl.conf Though for a desktop machine, disabling swap probably won't help improve performance

dmm 12y ago
That's true, but this was a special circumstance where disabling swap was creating very bad system behavior.
- darkr 12y ago
  pre 3.5 it doesn't actually disable swap, it will only use it when it's about to OOM. post 3.5 it does actually hard-disable, but setting swappiness to 1 gives the same behaviour as swappiness=0 in < 3.5
  - dmm 12y ago
    That's good to know, thanks.