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Date: Thu, 01 Feb 2001 08:53:59 -0500
From: Tom Leete <tleete@mountain.net>
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To: Alan Cox <alan@lxorguk.ukuu.org.uk>
CC: David Ford <david@linux.com>, Stephen Frost <sfrost@snowman.net>,
        LKML <linux-kernel@vger.kernel.org>
Subject: Re: 2.4.x and SMP fails to compile (`current' undefined)
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Alan Cox wrote:
> 
> We have a very large number of memcpy's of unknown short length (often in
> interrupts) that are close to branches. A lot of
> 
>         if(foo==NULL)
>                 return
>         memcpy(..
> 
> stuff for example.
> 
> Im more than happy for someone to do the benches and prove me wrong

Agreed, that is a bad case, and there is overhead for it in my patch. I'm
putting together some metrics, will post results here.

Regards,
Tom

-- 
The Daemons lurk and are dumb. -- Emerson
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