[Asterisk-biz] Asterisk on Dell blade servers

[Mike Fedyk]

Matthew Simpson wrote:

> Asterisk 1.2 handles a DS3 of SIP-SIP forwarding easily for us on a 
> P4-3.0/RAM-1GB, and could certainly easily do more.  It takes about 1% 
> of CPU and 6% of RAM with 672 channels.
>
> With RTP passing through, 200 channels on a typical P4/1GB solution 
> seems to be about the breaking point.  [G.711, no transcoding]

What is the bottleneck at this point?  CPU usage, interrupts, or bus 
contention?

Can you post a few lines of "vmstat 1" and "vmstat 60"?

Also, what kernel and distro are you using in these installations?