[Asterisk-Users] Erratic CPU load

[Eric Giesselbach]

David,

Zoa helped me, but were not working together. What's more, I cannot focus on load tests too much: the setup I work on must be ready in may and starts small scale. This system must be functional and reliable first and should scale well later. The scaling part determines how long I am allowed to play with Asterisk - so performance issues are just personal :)

A question about your "snake" load tests: have you seen any unexplainable spikes in processor load, or machine hangups every few hours?

Eric.

> -----Original Message-----
> From: David [mailto:dm at sangoma.com]
> Sent: Friday, April 01, 2005 4:59 PM
> To: Eric Giesselbach
> Subject: RE: RE: [Asterisk-Users] Erratic CPU load
> 
> 
> Hi Eric,
> 
> Thanks very much for your quick reply. Are you working with Zoa?
> 
> I have seen Zoa's presentation on Asterisk performance 
> testing. I thought it
> was really excellent, and I wish I could have attended. Do 
> you have any
> updated data? 
> 
> Regards,
> 
> David Mandelstam
> Sangoma Technologies Corporation
> email:     dm at sangoma.com
> web:       www.sangoma.com
> Tel:       905-474-1990 x 106
>            800-388-2475 x 106
> FAX:       905-474-9223
> 
>  
> 
> > At the moment I don't have much to add to your test concepts. 
> > I'm working with max 5 concurrent calls, because I'm mainly 
> > testing iax trunk timing issues (timestamp issues in asterisk 
> > v1.0.3 are repaired in cvs), routing (queueing) and effects 
> > of packet loss. The Speex load / cpu spike issue was an 
> > unexpected outcome I was worried about.
> > 
> > The snake is something I use working with IAX and SIP (I 
> > patched Asterisk to be able to prevent native bridges). For a 
> > snake using E1 I have to wait for a second E1 delivered 
> > around may 1st. In the mean time I can work with our telco's 
> > conference service... 
> > 
> > Regards,
> > Eric.
> > 
> > > -----Original Message-----
> > > From: David [mailto:dm at sangoma.com]
> > > Sent: Friday, April 01, 2005 12:50 AM
> > > To: Eric Giesselbach
> > > Subject: RE: RE: [Asterisk-Users] Erratic CPU load
> > > 
> > > 
> > > Hi Eric,
> > > 
> > > We at Sangoma have been doing T1/E1 cards for over 10 years, and 
> > > lately we have been doing some Asterisk integration. We 
> > would love to 
> > > come up with some simple test setups that would allow us 
> to locally 
> > > load up large TDM systems for integrity testing. I was 
> wondering if 
> > > you had any ideas.
> > > 
> > > Our current load tests are done on 2 machines 
> back-to-back with all 
> > > T1/E1 line connected. We then push calls in a "snake": 
> each machine 
> > > calling the other so that a single call goes through 
> maybe 94 links 
> > > before terminating in a channel bank or sip phone.
> > > 
> > > It seems to load things up quite nicely, but I was 
> > wondering how the 
> > > astertest guru would simulate a heavy load.
> > > 
> > > Regards,
> > > 
> > > David Mandelstam
> > > Sangoma Technologies Corporation
> > > email:     dm at sangoma.com
> > > web:       www.sangoma.com
> > > Tel:       905-474-1990 x 106
> > >            800-388-2475 x 106
> > > FAX:       905-474-9223
> > > 
> > >  
> > > 
> > > 
> > 
> 
>