Messages in this thread | | | Subject | Re: [PATCH] Extend mwait idle to optimize away CAL and RES interrupts to an idle CPU -v1 | From | Peter Zijlstra <> | Date | Mon, 27 Feb 2012 09:38:01 +0100 |
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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. So I more or less let it sit for a while.
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