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[Xen-devel] Re: [RFC PATCH 15/35] subarch support for controlling interr

from [Christian Limpach] [Permanent Link][Original]
To: Andi Kleen <ak@xxxxxxx>
Subject: [Xen-devel] Re: [RFC PATCH 15/35] subarch support for controlling interrupt delivery
From: Christian Limpach <Christian.Limpach@xxxxxxxxxxxx>
Date: Tue, 9 May 2006 17:29:59 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Ian Pratt <ian.pratt@xxxxxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, "Martin J. Bligh" <mbligh@xxxxxxxxxx>, Chris Wright <chrisw@xxxxxxxxxxxx>, virtualization@xxxxxxxxxxxxxx
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On Tue, May 09, 2006 at 06:07:57PM +0200, Andi Kleen wrote:
> 
> > 
> > Anybody want to comment on the performance impact of making
> > local_irq_* non-inline functions?
> 
> I would guess for that much inline code it will be even a win to not
> inline because it will save icache.

Maybe, although some of the macros compile down to only 2-3 instructions.

    christian


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