Hello

This is my setup

- 1 Quad Core Nehalem @ 2.80 ghz
- 12 GB of ram
- RAID 1+0 of 8 SAS 15K rpm disks
- Red Hat Enterprise Linux 5.6 x64
- Apache 2.2.3, PHP 5.3.6, Mysql 5.5, php-apc
- Latest stable roundcube version (0.5.2 today..)
- IMAP server: dovecot 2.0.11 in another host

I must support 1.200 concurrent users with roundcube (we are almost 15.000, 10% of concurrency is not a bad deal), and I have the following questions:

- How much memory does roundcube uses?
- How many mysql threads should I use for 1.200 concurrent users?
- Any performance hint about this setup?


Regards

Maria