[Dovecot] dovecot performance question

[Paul A]

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.

Here's my config:

disable_plaintext_auth: no
login_dir: /usr/local/var/run/dovecot/login
login_executable(default): /usr/local/libexec/dovecot/imap-login
login_executable(imap): /usr/local/libexec/dovecot/imap-login
login_executable(pop3): /usr/local/libexec/dovecot/pop3-login
login_greeting: Cape.Com D-V.1 ready.
login_processes_count: 14
max_mail_processes: 9000
mail_location: maildir:/home/%1u/%u/Maildir
mail_executable(default): /usr/local/libexec/dovecot/imap
mail_executable(imap): /usr/local/libexec/dovecot/imap
mail_executable(pop3): /usr/local/libexec/dovecot/pop3
mail_plugin_dir(default): /usr/local/lib/dovecot/imap
mail_plugin_dir(imap): /usr/local/lib/dovecot/imap
mail_plugin_dir(pop3): /usr/local/lib/dovecot/pop3
pop3_uidl_format(default):
pop3_uidl_format(imap):
pop3_uidl_format(pop3): %v.%u
pop3_client_workarounds(default):
pop3_client_workarounds(imap):
pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh
auth default:
  count: 4
  passdb:
    driver: pam
  userdb:
    driver: passwd

I'm trying to figure out what im doing wrong, I was seeing the same
performance issues with .99.


Here's what im seeing for connections, 

[root at pop etc]# ps aux | grep pop3 | wc -l
562
[root at pop etc]# ps aux | grep imap | wc -l
254
[root at pop etc]#

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.

Thanks,
 
P