While the gurus are sleeping, I'll ask a few questions to get started...
 
I'm assuming this is using some kind of Voip, correct?  If not, can you let us know what cards are involved?  What kind of phone?  Is it IP or analog?
 
But, to be honest, none of that should hinder performance.  What distribution of linux are you using?  Do you have X loaded?  That's not a good thing.  If strictly Voip, is ztdummy loaded?  I had some weird things happening on a VMware session that I think was related to timing (music on hold doing weird things).
 
Is this plain vanilla asterisk, an rpm somewhere, asterisk at home, astlinux?
 
Any other info would greatly be appreciated.  In a "typical" situation, your hardware should be fine with no tweaks needed.  That suggests something else is at fault.
 
What speed is your network?  Do you have a hub or a switch?  Is this wireless or wired?  What machine are you on doing the ssh to the router?  How many other services are running on the linux machines?  How many of systems are connected to the network?

 
On 4/10/06, Bartosz Wegrzyn - asterisk <[EMAIL PROTECTED]> wrote:
Hello,

I created this setup,

DSL------LINUX ROUTER-------ASTERISK

Linux acts as router and forwards packets only
512M and AMD 1599.987 MHz

Asterisk
512M
AMD 2000 MHz

When I ssh to linux router during the call and
execute any command that requires cpu , then sound gets choppy.
Simple test would be establish a call and start "du /" on the router.

The same applies to asterisk box.

Does anyone have any experience with tweaking the servers for best
perfomance with asterisk. How to give prority to asterisk processes , and
to routing processes?

Thanks

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