Messages in this thread | | | Date | Mon, 27 Feb 2012 17:08:19 +0800 | From | Yong Zhang <> | Subject | Re: [PATCH] Extend mwait idle to optimize away CAL and RES interrupts to an idle CPU -v1 |
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On Mon, Feb 27, 2012 at 09:38:01AM +0100, Peter Zijlstra wrote: > On Fri, 2012-02-24 at 14:13 +0800, Yong Zhang wrote: > > > This remind me that we should have moved the irq_enter()/irq_exit() to > > each arch's related irq handler. > > see: http://marc.info/?l=linux-kernel&m=130709505700821&w=2 > > > > So Peter, is there someone alread on it? or it still worth doing now? > > trouble was that some people didn't feel comfortable adding that > overhead to plain resched IPIs that didn't need to do anything.
Any ideas on where the plain resched IPIs come from?
Thanks, Yong
> So I > more or less let it sit for a while. > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/
-- Only stand for myself
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