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Date: Fri, 27 Feb 2009 07:06:33 -0800 From: Arjan van de Ven <arjan@...radead.org> To: Peter Zijlstra <peterz@...radead.org> Cc: Andrew Morton <akpm@...ux-foundation.org>, Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org, mingo@...e.hu, rostedt@...dmis.org, jonathan@...masters.org Subject: Re: [patch 4/4] genirq: add support for threaded interrupt handlers On Fri, 27 Feb 2009 09:05:10 +0100 Peter Zijlstra <peterz@...radead.org> 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 For development, discussion and tips for power savings, visit http://www.lesswatts.org -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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