The best way is to use tools like vmstats, I personally found Ktune to work really well with disk optimization for Qmail if your using CentOS, and optimizing your mysql configurations.
From: Noel Rivera [mailto:[email protected]] Sent: Wednesday, April 07, 2010 2:16 PM To: [email protected] Subject: [qmailtoaster] concurrency Hello List I Have 1 qmail server with 12 virtual domains, what is the best configuration for concurrencyincoming and concurrencyremote . In a few days the server is slow in send mails, and I need to delete messages from queue. What can I do to tunning my system. Thanks
