[Asterisk-Users] zttest

[Waldo Rubinstein]

Thanks. That gives me something to work on.

- Waldo

On May 16, 2005, at 4:59 AM, Damian Funnell wrote:

> Hi Waldo, I would be money on your problem being related to the  
> accuracy of zttest.  One way of checking IRQ's is to run "cat /proc/ 
> interrupts", but it is a lot more accurate to run "lspci -v" and  
> "lspci -vb".
>
> I would recommend Googling the lspci command, although the output  
> is pretty self explanatory.  The TDM appears as a TigerJet card,  
> not sure what TE410P will list as.
>
> PCI devices have their IRQ's dictated by the BIOS of the host  
> system.  How (and if) you can configure these manually depends on  
> the type of BIOS you have... in our IBM xSeries 206 we had to  
> actually juggle cards between slots to get it to assign a unique  
> IRQ to the TDM400P.
>
> Good luck!
>
> D.
>
> 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:
>
>
>> 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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>>>
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>>
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