On Dec 1, 2009, at 4:48 AM, Aravind Divakaran wrote:
You mean a single deliver process can run a long time with 100% CPU? Getting a strace of the process could be helpful.
Yes, dovecot deliver process is eating a lot of CPU. please find my strace output on the below link.
strace -tt would have actually been also more helpful, so it would have included timestamps. Are you using NFS or something similar for your filesystem in /home? The strace does show that Dovecot seems to be reading from a file that it just wrote to, so there's something non-optimal but it necessarily shouldn't be that slow.
You can find my strace with timestamp on the below link.
My /home partition using san storage with ocfs filesystem.
I have configured mailarchivel, where in which a copy of all mails will sent to one mailbox. In the archive mailbox using sieve script i am sorting the mail according to username, year, month and delivering it.
When ever i am removing my max procs option limit from 4 to default in postfix. System cpu usage become high. Then i have to put the limit again to make my cpu usage go down.
Rgds, Aravind