Date: Fri, 27 May 2005 22:37:05 -0400 From: jason henson <jason@ec.rr.com> To: Ryan Rempel <rgrempel@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: Good CPUTYPE setting for make.conf for mixed environment? Message-ID: <4297D951.7020704@ec.rr.com> In-Reply-To: <fb5ec423050526183810fe6603@mail.gmail.com> References: <fb5ec423050526183810fe6603@mail.gmail.com>
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Ryan Rempel wrote: >I've got several machines that I want to maintain identical >installations on. Some of them have athlon-xp CPUs and some have >pentium4's. > >What would be a good CPUTYPE setting to use in make.conf? Would an >athlon-xp run well (or at all) if I used pentium4? Would a pentium4 >run well (or at all) if I used athlon-xp? Or should I use a "lowest >common denominator" (and if so, what -- something like i686 perhaps?). > >I guess the other question is whether I should worry about this at all >-- I've got no CPUTYPE setting in make.conf at the moment at all -- >would a more "tuned" setting actually make that much difference? >_______________________________________________ >freebsd-questions@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-questions >To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" > > > I would say if you are not fully loaded it would make no difference. Then if you are you need to check to see if even using CPUTYPE=i686 speeds up some and slows some down. It does not really matter for the kernel, the kernel does not use SSE or any special instructions AFAIK. /usr/share/examples/etc/make.conf
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