linux-kernel - Re: [PATCH] Introduce load

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Message-ID: <20070313205526.GA46469@muc.de>
Date:	Tue, 13 Mar 2007 21:55:26 +0100
From:	Andi Kleen <ak@....de>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	Rusty Russell <rusty@...tcorp.com.au>,
	lkml - Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Introduce load_TLS to the "for" loop.

On Tue, Mar 13, 2007 at 10:31:27AM -0700, Jeremy Fitzhardinge wrote:
> Andi Kleen wrote:
> > On Tue, Mar 13, 2007 at 05:39:36PM +1100, Rusty Russell wrote:
> >   
> >> GCC (4.1 at least) unrolls it anyway, but I can't believe this code
> >>     
> >
> > Are you sure? Normally it doesn't unroll without -funroll-loops which
> > the kernel does normally not set. Especially not with -Os builds.
> >   
> 
> Does it matter either way in this case?

It's in the middle of the context switch.

-Andi
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