Date: Thu, 18 Jun 2009 18:56:45 -0700 From: "b. f." <bf1783@googlemail.com> To: freebsd-questions@FreeBSD.org Subject: Re: right CPUTYPE Message-ID: <d873d5be0906181856p21b6e28v6047f7174a0b5dd0@mail.gmail.com>
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On Thu, Jun 18, 2009 at 8:08 PM, Aryeh Friedman<aryeh.friedman at gmail.com> wrote: > What CPUTYPE should I put in /etc/make.conf for: > > CPU: AMD Phenom(tm) II X4 955 Processor (3210.85-MHz 686-class CPU) OP is referring to CPUTYPE ( see make.conf(5) ) , not the cpu string in the kernel configuration file, so HAMMER isn't a valid choice. It depends on what compiler you are using: if you are using the base compiler, which is a patched version of gcc 4.2, I think that you want: CPUTYPE=athlon64 But if you're using gcc >= 4.3, with the right toolchain, or llvm, you may be able to use the newer: CPUTYPE=amdfam10 to take advantage of your CPU's newer instruction sets. As someone said, the effect this will have in compiling may be different when you are using FreeBSD i386 as opposed to FreeBSD amd64. b.
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