AMD Sempron CPUTYPE & Co.

Josh Paetzel josh at tcbug.org
Tue Sep 20 13:39:31 PDT 2005


On Tuesday 20 September 2005 15:21, Andrew P. wrote:
> Hello!
>
> So I have a Sempron 2500+ CPU, one that supports
> SSE3. What should I place in my /etc/make.conf? I use
> ssh with X11Forward very often, so OpenSSL should
> be compiled to be as fast as it can be on this CPU.
> Here's a part of dmesg:
>
> CPU: AMD Sempron(tm) Processor 2500+
> (1407.05-MHz 686-class CPU)
> Origin = "AuthenticAMD"  Id = 0x20fc2  Stepping = 2
>
>   Features=0x78bfbff<FPU,VME,DE,PSE,TSC,MSR,
> PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,
> PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2>
>   Features2=0x1<SSE3>
>   AMD Features=0xe2500800<SYSCALL,NX,MMX+,
> <b25>,LM,3DNow+,3DNow>
>
> I want to use SSE3, but I don't want to set CPUTYPE
> to nocona, cause that way compilers won't ever use
> AMD features. Is there a way to tell compilers to use
> every feature I've got?
>
>
> Thanks very much,
> Andrew P.

I don't know what options to put in /etc/make.conf, but I see that you 
are running your FSB @ 133mhz when it should be @ 166mhz.  A Sempron 
2500+ runs at 1.75ghz

-- 
Thanks,

Josh Paetzel


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