Re: irq balancing question
From: Arjan van de Ven
Date: Fri Feb 23 2007 - 14:01:56 EST
> and i guess it doesn't matter if the distribution is being done by the
> hardware, from the point of view of the kernel, i would still get the
> performance penalty.
for the cache bouncing you save assuming you have an Intel cpu (eg one
where the cache is shared). You don't save on the cross-cpu reassembly,
that is an entire different algorithm path you hit there..
> i'm just trying to figure it out, i have no real knowledge of the inner
> kernel workings, so i dont know. but i really would like to use all 4 cores.
> just how expensive is that reassembly path ?
depends on your traffic to be honest, probably a question more suited
for net-dev list.
if you want to mail me at work (you don't), use arjan (at) linux.intel.com
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