[asterisk-biz] Asterisk Performance Results

[Alistair Cunningham]

Senad Jordanovic wrote:
> Alistair Cunningham wrote:
>> Jim Dalton wrote:
>>>> Alistair Cunningham wrote:
>>>>
>>>> Jim,
>>>>
>>>> Thank you for publishing this; it's most useful to the 
>>>> Asterisk community. Did you make any measurements of voice 
>>>> quality (jitter, packet loss, subjective listening tests by a 
>>>> human) at high loads? From a brief read at your PDF document, 
>>>> I didn't see anything on this - my apologies if I've missed it.
>>>>
>>> Very good question and quick reading!  This issue is not addressed in the
>>> test plan.  
>>>
>>> To check for voice quality we performed subjective listening test at high
>>> loads and the quality was good.  
>>>
>>> We spent some time trying to think of a simple way to quantitatively measure
>>> voice quality during the test, but could not come up with a practical
>>> solution that was easy and affordable.  We would appreciate any input on
>>> easy ways to collect voice quality data.
>> In that case, you're getting better scalability than our own testing 
>> with vanilla Asterisk 1.2 by a factor of around 2. While I'm sure Digium 
>> have made performance improvements for 1.4, I'm surprised by the jump.
>>
>> Would you be willing to carry out load testing and tuning of other 
>> software on a commercial basis? Specifically I'm thinking of Enswitch, 
>> which uses Asterisk and OpenSER for telephony. We've tested to 5000 
>> concurrent calls, but don't have the test environment to go further.
> 
> Alistair,
> 
> Very Interesting!!!
> 
> You have no environment to test above 5000 calls but claim that your 
> customers are passing 100,000 of thousands in real time...?
> 
> Regards,
> 
> Senad
> www.bicomsystems.com

Senad,

That's correct, but not the whole story. Unfortunately we are under NDA 
and I cannot give more details. Let's just say at this time we do not 
have a test environment to test above 5000 calls under a variety of 
different business models that our customers use.

If anyone has such an environment, and a proven track record of running 
load testing and tuning, I'd be interested in hearing from them. 
Otherwise, we'll probably build it ourselves.

Alistair Cunningham
+1 888 468 3111
+44 20 799 39 799
sip:acunningham at integrics.com
http://integrics.com/