[asterisk-users] Re: Dell PowerEdge 2950 Sharing NIC IRQ with Digium Card

[Matt]

*** That should have read "dont' really exist ABOVE 15" sorry ***



Well, remember that IRQs don't really exist about 15.   So your wct2xxp,
> megaraid, eth0, and eth1 are all sharing an IRQ (or at least some of them
> are).    Since the wct2xxp is not PCIe compliant (it's only PCI) and only
> runs at 33mhz (not 133mhz) it's having all kinds of issues.
>
>
> @David Cook:  APIC does not work.  APIC gives you exactly what this person
> is describing... you get shared IRQs running different cards.   With 15 real
> IRQs, I can't understand why anyone would need to share any IRQs until
> absolutely necessary.   What this says to me is that Dell (and now other
> manufacturers of servers) are taking a cheap route, and rather then running
> individual busses (or something along that line) they are daisy chaining
> NICs, PCIs, etc together and just putting them all on the same IRQ.
> Apparently PCIe is suppose to be ok with that.  Unfortunately, there is alot
> of PCI equipment out there yet.... you would think they would at least offer
> some sort of backwards compatibility.
>
> Anyway.. yes the above example is EXACTLY where I've seen issues with the
> Digium cards.   Assuming the Digium is sharing with the NIC (or the RAID..
> it doesn't matter)... when the NIC (or the RAID) start getting alot of
> activity on them, your audio is going to suffer.
>
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