RE: [RFC][2.6.12.3] IRQ compression/sharing patch

Zwane Mwaikambo
2005-08-11T17:46:27Z

On Wed, 10 Aug 2005, Protasevich, Natalie wrote:

> our systems we are just about to use up all 224 interrupts, but not
> quiet.
> I have to mention that as far as I know Zwane is about to release his
> vector sharing mechanism, he had it implemented and working for i386 (I
> tested it on ES7000 successfully, by itself and combined with
> compression patch too), and was planning implementing it for x86_64. I
> am officially volunteering for testing it in its present state, for both
> i386 and x86_64 (I can still do this on our systems by removing the IRQ
> compression code :), hope this will help Zwane and Andi to release it as
> soon as possible.

I added some of the suggestions brought forward (dynamically allocated
IDTs, percpu IDT) last night, all that's left is MSI, which does work
right now, but gets all its vectors allocated on the first irq handling
domain. I should be done soon, time permitting.

Thanks,
Zwane