[Asterisk-Users] Processor Update?

[Mike Fedyk]

Mike Hammett wrote:

> I've been Googling around for some time now (a few hours on dial-up).  
> I find all kinds of questions similar to mine, but either there is no 
> answer or the answer has nothing to do with the question.  Hopefully 
> this post isn't another one of those.
>  
> Does Asterisk favor FPU performance or clock speed?  (Meaning AMD or 
> Intel)

In this instance I think you're asking the wrong question.  Asterisk 
will scale better on a processor that handles branching better, so the 
AMDs with the shorter pipelines will help here a lot.

> I see Asterisk can be compiled for x64 systems.  Does it run any 
> better\worse on x64 versus i386?

I have heard good reports from x64 systems.  Especially the AMD variety 
that isn't drain bamaged.

> Dual-core CPU performance isn't as good as dual CPU's, but is more 
> often than not a better deal as it's close, but a lot cheaper.  
> Dual-core vs. Dual CPU performance depends on the application.  How 
> does Asterisk respond?
>  
> Looking to build out a system capable of 100 concurrent calls (IP 
> pass-through, so in effect 200).  Looking at the dimensioning, I can 
> get some ideas, but few of them state the call quality.  I'm hoping to 
> be able to use a single CPU that is dual core as the price to go to a 
> dual CPU that is single core puts me at least 60% to a redundant server.

Asuming no AGI, a single p4 will handle 200 calls.

>  More information about the setup
> ------------------------------------------------------
> No cards of any kind (Tyan board with integrated video, NIC, SATA 
> nothing more needed)
> some IAX2 trunks (ztdummy)
> mainly SIP clients, but an increasing number of IAX2
> mainly ulaw\alaw, if not solely (the transcoding chews CPU cycles 
> needlessly)