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. > > http://pastebin.com/m6965f4ab
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.
