[Carlos Henrique Reimer - Wed at 03:25:15PM -0300] > I´m trying to tune a linux box with a 12 GB database and 4 GB RAM. First > of all I would like to stop the swapping, so the shared_buffers and sort_mem > were decreased but even so it started swapping two hours after DBMS started > up. > > I would like to know some suggestions how to discover why is it swapping?
I agree with Tom Lane, nothing to worry about. Swapping is not a problem per se, aggressive swapping is a problem. If you are absolutely sure you want to ban all swapping, use "swapoff"? I'd trust linux to handle swap/cache sensibly. Eventually, become involved with kernel hacking ;-) -- Notice of Confidentiality: This email is sent unencrypted over the network, and may be stored on several email servers; it can be read by third parties as easy as a postcard. Do not rely on email for confidential information. ---------------------------(end of broadcast)--------------------------- TIP 4: Have you searched our list archives? http://archives.postgresql.org