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Date: Wed, 28 Nov 2007 11:04:35 +0100
From: Kris Kennaway <kris@FreeBSD.org>
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To: Attilio Rao <attilio@FreeBSD.org>
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Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: Re: cvs commit: src/sys/amd64/conf GENERIC src/sys/conf NOTES
 options
 src/sys/i386/conf GENERIC XBOX src/sys/kern kern_mutex.c        
 src/sys/sparc64/conf GENERIC src/sys/sun4v/conf GENERIC
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Attilio Rao wrote:
> attilio     2007-11-28 05:50:45 UTC
> 
>   FreeBSD src repository
> 
>   Modified files:
>     sys/amd64/conf       GENERIC 
>     sys/conf             NOTES options 
>     sys/i386/conf        GENERIC XBOX 
>     sys/kern             kern_mutex.c 
>     sys/sparc64/conf     GENERIC 
>     sys/sun4v/conf       GENERIC 
>   Log:
>   Make ADAPTIVE_GIANT as the default in the kernel and remove the option.
>   Currently, Giant is not too much contented so that it is ok to treact it
>   like any other mutexes.
>   
>   Please don't forget to update your own custom config kernel files.
>   
>   Approved by:    cognet, marcel (maintainers of arches where option is
>                   not enabled at the moment)

Also even when it is contended, the ADAPTIVE_GIANT behaviour has always 
been a big win in my testing.

Kris