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From: Andi Kleen <ak@suse.de>
To: bidulock@openss7.org
Subject: Re: [PATCH] use unlikely() for current_kernel_time() loop
Date: Thu, 8 Jun 2006 12:20:04 +0200
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On Thursday 08 June 2006 11:36, Brian F. G. Bidulock wrote:
> Andi,
> 
> On Thu, 08 Jun 2006, Andi Kleen wrote:
> > 
> > > performance increased 2% per hyperthread; 
> > 
> > That would surprise me. Most likely you made some measurement error.
> > 
> 
> Don't think there was an error.  Tests performed on STREAMS external
> modules optimized with profiling data.


You mean with compiler profile feedback? 

If that is slower then it would sound like a compiler bug.

-Andi