[Mimedefang] mount noatime

[marius popa]

Chris Myers wrote:
> ----- Original Message ----- 
> From: "Kenneth Porter" <shiva at sewingwitch.com>
> To: <mimedefang at lists.roaringpenguin.com>
> Sent: Wednesday, March 17, 2004 3:09 AM
> Subject: [Mimedefang] mount noatime (was: ramdisks on Linux)
> 
> CPU is important, but not as important as you might think.  A single P4
> 2.0GHz can handle more than 100K messages/day if the rest of the system is
> balanced.  Don't go for that quad-processor 3.2GHz Xeon system with 4MB
> on-die cache with 8 SCSI disks in a RAID 0+1 array, 32GB RAM and dual
> gig-Ethernet NICs unless you're trying to figure out how to push a million
> messages/day through one box.  Frankly it'll be cheaper to have a dozen 1u
> P4 2.8GHz 40GB IDE systems than it would be to buy that one monster box ...
> AND you'll have better reliability with a dozen expendable boxes.
> Greylisting becomes slightly more interesting over a dozen boxes, you better
> know (or learn) to use a real database system at that point.

Forget about xeons :)
Opteron has better marhitecture (64bit,numa ..etc) and bandwidth

http://aceshardware.com/read.jsp?id=60000275
http://www.linuxhardware.org/article.pl?sid=03/12/17/189239&mode=thread