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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 23:56:28 +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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> Everything[1] in line:
> -rwxr-xr-x  1 cl349 cl349  2633640 May  9 19:42 vmlinux-inline-stripped
> Everything out of line:
> -rwxr-xr-x  1 cl349 cl349  2621352 May  9 19:45 vmlinux-outline-stripped
> Additionally, I changed did a build with only __sti and __restore_flags
> out of line and the others in line:
> -rwxr-xr-x  1 cl349 cl349  2617256 May  9 19:50 vmlinux-hybrid-stripped
> __sti and __restore_flags are the ones which generate more code,
> so it seemed more sensible to make the out of line.
> Any conlusions?

It looks like hybrid is a clear winner at least from the code size, isn't it?

I doubt you will be able to benchmark the difference for anything else
anyways so might as well aim for that.


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