[asterisk-users] zaptel huge irq problem

[François Delawarde]

I will try VMWare then. Does it support AMD-V or Intel VT virtualization 
at processor level for speedup? If so, I guess there is at some point 
some kernel code (module like KVM or special kernel like Xen) that could 
provoke some similar problems with zaptel interrupts. Could there be 
some issues here or am I totally wrong again?

François.



Stephen Bosch wrote:
> François Delawarde wrote:
>
>   
>> And I thank you for that (the helping part), you've found the deep cause
>> of all my zaptel problems (Xen), so please don't leave me alone! ;-)
>>
>> To be a bit more constructive, I'd like to ask you or anyone that dared
>> to try using Asterisk on a non-dedicated hardware, specifically those
>> that tried on a machine hosting VMs the following:
>>
>> - If there is no way running Asterisk with Xen, what type of
>> 'hypervisor' should I use in order not to have problems? KVM?, KQemu?,
>> VMWare?
>>     
>
> The only one I would bother with is VMWare Server. It is solid, proven
> technology, and they have a big team of very talented engineers who have
> worked years to get the virtualization to the point where it can be sold
> as an enterprise grade product.
>
> If I were to try virtualizing anything, it would be on VMWare Server.
>
>   
>> - What type of problems should I expect if I dare to do that? (of
>> course, Asterisk will be realtime-niced to make it more important)
>>     
>
> Well, in particular anything that expects unfettered access to hardware
> (as most realtime applications which rely on interface cards do) is
> going to be vulnerable to the proclivities of the hypervisor.
>
> Virtualization is still mostly rocket science. I have no doubt that it
> is the future and one day everything will run in virtualized
> environments -- but we're still a bit away from that.
>
> Virtualization makes financial sense when you have 20 database servers
> running at 10% utilization; you can drop your hardware requirements by
> at least a third... but for systems relying on dedicated hardware, I
> would be very careful (again -- I speak from ugly experience here).
>
> -Stephen-
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-- 

 _________________________

François Delawarde

Ingeniero de red

Tel: 918.03.92.51

E-mail: fdelawarde at wirelessmundi.com <mailto:fdelawarde at wirelessmundi.com>

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