Date: Fri, 07 Jul 2006 10:28:45 -0400 From: Chuck Swiger <cswiger@mac.com> To: Owen G <owen_pg@yahoo.com> Cc: freebsd-questions@freebsd.org Subject: Re: CPUTYPE for VIA EPIA EDEN in /etc/make.conf on FreeBSD 6.1 Message-ID: <44AE6F9D.90104@mac.com> In-Reply-To: <20060707131029.82648.qmail@web60615.mail.yahoo.com> References: <20060707131029.82648.qmail@web60615.mail.yahoo.com>
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Owen G wrote: > I'm trying to get a little more speed out of my 600MHz mini-itx box as > I convert it into a FReeBSD fileserver (with GUI) . . . > > I'm trying to find the right settings for /etc/make.conf and would > appreciate your help. > > dmesg.boot shows the processor as being: > > CPU: VIA C3 Samuel 2 (601.37-MHz 686-class CPU) > Origin = "Centaurhauls" Id = 0x673 Stepping = 3 > Features=0x803035<FPU,DE,TSC,MSR,MTRR,PGE,MMX> [ ... ] These VIA C3 processors are basically a low-power Pentium+MMX processor, and I've used: CPUTYPE=pentium CFLAGS=-O2 -pipe ...OK under later 5.x and 6.x releases. Using CPUTYPE=i686/pentium2 resulted in the bootloader and the kernel containing instructions which the CPU couldn't handle (ie, the system halted and panic'ed) when I tried. I believe you could use CPUTYPE=pentiumpro or pentium-mmx OK, but there didn't seem to be any performance difference, and I'm leery of chasing the compiler optimizer too far when it doesn't change the system performance by a noticable amount. -- -Chuck
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