Re: [patch 4/4] genirq: add support for threaded interrupt handlers

[Arjan van de Ven]

On Fri, 27 Feb 2009 09:05:10 +0100
Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:

> 
> Right, Thomas did the EHCI usb driver, the network driver you propose
> is a tad hard since it relies on the whole network stack softirq
> stuff. Re-working the whole net-stack to make use of threaded
> handlers is a massive undertaking -- although I seem to remember
> someone doing it a few years back and seeing a general performance
> improvement, Thomas still got a link to that work?


we shouldn't have to; just running the softirq handler from the irq
thread should work, and not lose real performance.
Sure you're not going to get a performance gain that you could get
but it still works.
or am I missing something?

(and esp for things like wireless drivers, that should be just fine; I
can understand hesitation to do 10g ethernet drivers right away ;-)


-- 
Arjan van de Ven 	Intel Open Source Technology Centre
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