Please help,
Dovecot is running extremely slow for the last couple of weeks and it seems to be getting worse (or my patience running short).
I attach the 10-master configuration and the log file after running strace according to: http://wiki.dovecot.org/Debugging/ProcessTracing
I can click on an email and wait for a minute or more before receiving a connection dropped or no error at all. I use many clients (thunderbird, windows 8 mail, maildroid for android, squirrelmail) and they all have similar behavior. It happens both in the inbox and on imap subfolders. Sometimes it helps changing subfolders back and forth.
I have many imap folders organized in up to 3 levels of subfolders and use postfix for delivery.
Let me know any other info you require. Thanks!
Patricio