[horde] Bottleneck ? CPU or HDisk IO or RAM

[Andrew Morgan]

On Mon, 2 Feb 2009, Linux Advocate wrote:

> Guys, just wondering. For a horde groupware webmail edition, what will 
> be the bottleneck if there are about 1000 users? The CPU ? or the 
> HDisks?
>
> Will a new box with Dual Core Dual Xeons, 8GB RAM and 7.2k rpm 750 GB 
> SATA disks ( 6 )  be sufficient? Anybody here got some sample specs of 
> some running machines with the groupware?

Horde itself will be limited by memory and CPU, assuming your IMAP server 
is running on a separate server.  The specs you list above should be a 
good starting point for Horde, depending how you tune it.  I recommend 
memcache as your session storage backend for Horde.

 	Andy