[Asterisk-Users] Case studies for 120 simultaneous calls on IVR
Scott Stingel
scott at evtmedia.com
Fri Sep 24 17:13:23 MST 2004
Hi-
I've run extensive load testing with both single and dual P4's and Xeon's
(all at least 2.8GHz), and I've got 6 installed IVR systems of this size in
various configurations.
Asterisk can run 4 E1's (120 channels) in an IVR scenario, but just barely.
With this many simultaneous calls, you may notice a bunch of frame
retransmissions in the error logs, but these dont seem to effect the calls.
There seems to be lots of call setup overhead, because I notice that shorter
calls (<5 seconds) seem to load the processor more heavily.
For IVR only, I dont think its necessary to use the Xeon, or really dual
processors for that matter - unless you're going to start doing transcoding
or other processor-loading tasks.
Please see my notes on the Wiki on this topic:
http://www.voip-info.org/wiki-Asterisk+dimensioning
Regards,
Scott Stingel
Scott M. Stingel
President,
Emerging Voice Technology, Inc.
Palo Alto California & London England
www.evtmedia.com
-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Michael
Bielicki
Sent: Friday, September 24, 2004 4:52 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Case studies for 120 simultaneous calls on IVR
We use mostly dual opterons and they don't seem to notice the quad E1's on
them
On Fri, 24 Sep 2004 12:57:09 -0400, steve szmidt <steve at szmidt.org> wrote:
> On Friday 24 September 2004 12:46 pm, Christian Victor wrote:
> > Hi Régis,
> >
> > > We're going to build an IVR system with a TE405P and 4 E1. We're
> > > sure that the 120 channels will be filled by 120 simultaneous
> > > calls during peak, so we want to have the good server to manage this.
> > >
> > > We wonder a lot of things and maybe you could help us.
> > >
> > > - Are you ever build a similar system ?
> >
> > > - Does linux use the advantage of Xeon processor ? so we must buy Xeon
?
> >
> > It does. Put I would prefer two single P4 boxes over one dual Xeon.
>
> BTW, Asterisk does utilize a dual processor very well. Whereas two
> computers offer redundancy.
>
> --
>
> Steve Szmidt
>
> "They that would give up essential liberty for temporary safety
> deserve neither liberty nor safety."
> Benjamin Franklin
>
>
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--
Michael Bielicki
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