Kenny, I think the time problem is related to the virtual server software I'm using. But the head node has 2 dual core intel's with 8 gig's of ram with 7,000 users. The cpu stays at about 60% idle. I will be moving away from the virtual server stuff and into a stand alone server hopefully this helps out the situation.
-----Original Message----- From: dovecot-bounces@dovecot.org [mailto:dovecot-bounces@dovecot.org] On Behalf Of Kenny Dail Sent: Tuesday, May 29, 2007 7:57 PM To: dovecot@dovecot.org Subject: Re: [Dovecot] Dovecot] dovecot performance question
Hi, using the latest dovecot with pop3/imap. Using mostly outlook 2003 for pop3 and squirrel mail imap.
I have a lot of users reporting back that imap is very slow. We average about 300 imap and another 700 pop session at any given time.
reporting that imap is slow or that squirrelmail is slow? ;) How is the load average on the server? We found at our site to keep Apache/squirrelmail happy, we dedicated a server for our webmail users. Mostly being a RAM issue in that case. Just how beefy is the server you are using?
I am having a time issue on this server and im not sure if its affecting dovecot.
May 29 11:42:19 pop dovecot: POP3(xxx): Time just moved backwards by 1 seconds. I'll sleep now until w e're back in present. May 29 11:42:19 pop dovecot: POP3(xxx): Time just moved backwards by 1 seconds. I'll sleep now until w e're back in present. May 29 11:42:31 pop dovecot: POP3(xxx): Time just moved backwards by 1 seconds. I'll sleep now until w e're back in present. May 29 11:42:42 pop dovecot: POP3(xxx): Time just moved backwards by 1 seconds. I'll sleep now until w e're back in present.
It'll affect it in that you will be having 1 sec delays frequently it seems. You should definitely look into fixing that. That is bad behavior for a busy mail server.
Kenny Dail kend@amigo.net