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

To: Christian Limpach <Christian.Limpach@xxxxxxxxxxxx>
Subject: [Xen-devel] Re: [RFC PATCH 15/35] subarch support for controlling interrupt delivery
From: Andi Kleen <ak@xxxxxxx>
Date: Tue, 9 May 2006 18:31:37 +0200
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 Tuesday 09 May 2006 18:29, Christian Limpach wrote:
> 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.

Can you post before/after vmlinux size numbers for inline/out of line?

-Andi

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