[Asterisk-Users] zttest

[Waldo Rubinstein]

Damian,

Thanks for your input. Hyperthreading is in fact enabled and now that  
you mention this I will disable it.

The reason I ask is because under some load (may be 40 simultaneous  
calls), voice quality degrades. We have audio problems where one  
party hears the other but not viceversa and then it all works fine.  
It's random audio quality problems in general. During these cases,  
I'm constantly running vmstat 1 and CPU utilization is always 85%+ idle.

I will also look into setting the TE410P in its own IRQ. Do you know  
how I can do that? Is that a motherboard BIOS setting or is it  
something that needs to be done to the TE410P itself?

Thanks,
Waldo

On May 16, 2005, at 12:59 AM, Damian Funnell wrote:

> Hi Waldo, it really depends on who you ask - Digium say that  
> anything less than 99.99% is going to result in problems, but ours  
> regularly runs at around 99.98% and we don't have any problems.
>
> One of our boxes was running at around 99.96% and we had major  
> issues with the voice quality packing up from time to time.  We  
> disabled hyper threading and put the TDM400P on its own IRQ and the  
> results came back up over 99.98% (haven't had any problems since).
>
> Do you have issues with your * box?  If so then I would start  
> worrying about zttest output (and thinking about disabling hyper  
> threading on those dual Xeons), otherwise have a smile and a beer  
> and pity us poor fools who have had problems due to poor results.
>
> Cheers,
> Damian.
>
> FFF Managed Technology Ltd
> 60 Cook St
> P.O. 6368 Wellesley St
> Auckland
> t +64 9 356 2911
> f +64 9 358 9070
> m +64 21 415 297
> w www.fff.co.nz
>
>
>
> Waldo Rubinstein wrote:
>
>
>> I was browsing the applications developed in zaptel and came  
>> across  zttest.
>>
>> After I run it, I get the following:
>>
>> Opened pseudo zap interface, measuring accuracy...
>> 99.975586% 99.987793% 99.987793% 99.987793% 99.987793%  
>> 100.000000%  99.987793%
>> 99.987793% 99.987793% 99.987793% 99.987793% 99.987793% 99.987793%   
>> 99.987793% 99.975586%
>> 99.987793% 99.987793% 99.987793% 99.987793% 99.987793% 99.987793%   
>> 99.987793% 99.987793%
>> 99.987793% 99.987793% 99.987793% 99.987793% 99.987793% 99.987793%   
>> 99.987793% 99.987793%
>> 99.987793% 99.987793% 99.987793% 99.987793% 99.987793% 99.987793%   
>> 99.987793% 99.987793%
>> 99.987793% 99.987793% 99.987793% 99.987793% 99.987793% 99.987793%   
>> 99.987793% 99.987793%
>> 100.000000% 99.987793% 99.987793% 99.987793% 99.987793%  
>> 99.987793%  99.987793% 99.987793%
>> 99.987793% 99.987793%
>> --- Results after 57 passes ---
>> Best: 100.000000 -- Worst: 99.975586 -- Average: 99.987793
>>
>> What does this mean? Should I have expected to get 100% across  
>> the  board?
>>
>> This is from a TE410P running on Debian 2.6.11-1-686-smp on a  
>> dual  Xeon 2.4GHz server.
>>
>> Thanks,
>> Waldo
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