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Re: [Xen-devel] Re: [PATCH] clean up CFLAGS

To: Andi Kleen <ak@xxxxxxx>
Subject: Re: [Xen-devel] Re: [PATCH] clean up CFLAGS
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Fri, 10 Mar 2006 14:58:15 +0000
Cc: Charles Coffing <ccoffing@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
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On 10 Mar 2006, at 14:50, Andi Kleen wrote:

I've put some default CFLAGS (-Wall -O3)

Are you sure -O3 is a good idea? In my experience it just bloats
.text for most projects because of its aggressive inlining. I would
use -O2.

That's a good question. All that patch really did was move the optimisation default into Config.mk, and the general choice throughout the Xen tree was -O3. But it isn't clear that's best.

 -- Keir


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