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Date: Tue, 22 Feb 2005 14:26:10 +0200
From: Maxim Sobolev <sobomax@portaone.com>
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To: David Schultz <das@FreeBSD.ORG>
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cc: cvs-src@FreeBSD.ORG
cc: src-committers@FreeBSD.ORG
cc: cvs-all@FreeBSD.ORG
Subject: Re: cvs commit: src/lib/msun/i387 Makefile.inc e_atan2.S e_atan2f.S
 s_atan.S
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David Schultz wrote:
> das         2005-02-21 16:04:23 UTC
> 
>   FreeBSD src repository
> 
>   Modified files:
>     lib/msun/i387        Makefile.inc 
>   Removed files:
>     lib/msun/i387        e_atan2.S e_atan2f.S s_atan.S 
>   Log:
>   Remove the i387 versions of atan(), atan2(), and atan2f().
>   They are slower than the MI routines on modern hardware,
>   except for degenerate cases such as the Pentium 4.

Well, it is worth probably nothing that 70-80% of machines running 
FreeBSD today fall into that degenerate case. How much slower MI ws MD 
on p4?

-Maxim