Re: irq balancing question

["JaniD++" <djani22@dynamicweb.hu>]

----- Original Message ----- 
From: "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>
To: "JaniD++" <djani22@dynamicweb.hu>
Cc: <linux-kernel@vger.kernel.org>
Sent: Thursday, December 15, 2005 3:00 PM
Subject: RE: irq balancing question


> >> >----- Original Message ----- 
> >> >From: "Arjan van de Ven" <arjan@infradead.org>
> >> >To: "JaniD++" <djani22@dynamicweb.hu>
> >> >> 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

Ahh, thanks! :-)
This fix the problem!

>
> >
> >(the intel xeon CPU can work x86-64 kernels?)
> >
>
> Yes. If your CPUs have EM64T capability, then they can run x86-64
> kernels.

OK, i will try it! ;-)

Thanks,
Janos

>
> Thanks,
> Venki
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