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Date: Tue, 27 Dec 2011 13:22:12 -0700 (MST)
From: Warren Block <wblock@wonkity.com>
To: Damien Fleuriot <ml@my.gd>
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Cc: freebsd-net@freebsd.org
Subject: Re: Compiling only "network" part of the kernel
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On Tue, 27 Dec 2011, Damien Fleuriot wrote:

>> Those are best-case times.  A typical ccache buildworld after csup to
>> -stable is about 9 minutes on this system.
>
> That sounds good enough.
>
> Are there any performance hits during production, as in, when not busy
> rebuilding the world or whatever, just normal daily operation ?

ccache is only called when compiling.  There's a little extra overhead 
in make.conf, probably not significant.  And the disk space used for the 
cache.