RE: irq balancing question

From: Pallipadi, Venkatesh
Date: Thu Dec 15 2005 - 09:00:12 EST


>> >----- Original Message -----
>> >From: "Arjan van de Ven" <arjan@xxxxxxxxxxxxx>
>> >To: "JaniD++" <djani22@xxxxxxxxxxxxx>
>> >> On Wed, 2005-12-14 at 22:05 +0100, JaniD++ wrote:
>> >> > Hello, list,
>> >> >
>> >> > I try to tune my system with manually irq assigning, but
>> >this simple not
>> >> > works, and i don't know why. :(
>> >> > I have already read all the documentation in the kernel
>> >tree, and search
>> >in
>> >> > google, but i can not find any valuable reason.
>> >>
>> >>
>> >> which chipset? there is a chipset that is broken wrt irq
>balancing so
>> >> the kernel refuses to do it there...
>> >
>> >This happens all of my systems, with different hardware.
>> >
>> >In the example is Intel SE7520AF2, IntelR E7520 Chipset, +2x
>> >Xeon with HT.
>> >
>> >And the other systems is Abit IS7, intel 865, and only one P4
>> >CPU with HT,
>> >but the issue is the same.
>> >
>>
>> Which kernel and which architecture (i386 or x86-64?)
>
>i386, and kernel 2.6.14 - 2.6.15-rc3

Things should work with 2.6.15-rc5.
There was a bug with this that was fixed recently. The patch here
http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commi
t;h=fe655d3a06488c8a188461bca493e9f23fc8c448

>
>(the intel xeon CPU can work x86-64 kernels?)
>

Yes. If your CPUs have EM64T capability, then they can run x86-64
kernels.

Thanks,
Venki
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