Date: Thu, 27 May 2004 22:32:25 -0400 From: Jem Matzan <thejemre@thejemreport.com> To: freebsd-amd64@freebsd.org Subject: Re: CPUTYPE for 32-bit mode? Message-ID: <40B6A4B9.7050100@thejemreport.com> In-Reply-To: <40B6A3EC.2030202@roarmouse.org> References: <40B6A3EC.2030202@roarmouse.org>
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Andrew Houghton wrote: > Not necessarily the best place to ask this question, but.. > What, if any, CPUTYPE setting in /etc/make.conf makes sense for an > opteron running in i386 mode? I'm not sure how much tuning GCC 3.3.3 > actually provides when fiddling with things like this, so maybe it > doesn't matter. I would use k8 or opteron, but neither are listed as > options in /usr/share/examples/etc/make.conf. athlon-xp and athlon-4 > seem the next best bet, with (I think) athlon-4 edging out athlon-xp > due to support for SSE2 instruction sets. > > Should I even bother with this? > > - a. > _______________________________________________ > freebsd-amd64@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-amd64 > To unsubscribe, send any mail to "freebsd-amd64-unsubscribe@freebsd.org" > > athlon-xp will definitely work. But since the AMD64 architecture uses SSE2 and MMX instructions, you could also use p4. There might be a problem that I'm not seeing by using the p4 type, but in theory it should work perfectly. -Jem
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