> was consistently below 5. The processor is mostly idle. I thought the
Find out which processes are in D or R state. Are them all pop3d ? What processes are contending for the CPU during the CS spikes? What database backends are you using in Cyrus? What berkeley DB version? The db is db3-3.3.11-6 for everything but the mailboxes db which I changed to skiplist. It's not all pop3, but it is mostly pop3 in the D state. There are some lmtpd, cleanup(postfix), and every once in a while kjournald is in DW. When the load really spikes like 30 pop3d processes are in state D waiting for disk IO I presume. I don't know if the pop3d processes are waiting for authenticaiton or for mailbox access though. We are using saslauthd(currently w/ 30 threads) which points to pam which is using ldap on another box to auth users. I know saslauthd natively supports ldap we just haven't been able to get that to function yet. Thanks, Jeremy
