Re: CPUTYPE in general - was Re: Which CPUTYPE for a dualcore Xeon on AMD64

2007-06-26 Thread Mike Meyer
In <[EMAIL PROTECTED]>, Zavam, Vinícius <[EMAIL PROTECTED]> typed: > 2007/6/26, Garrett Cooper <[EMAIL PROTECTED]>: > > Mike Meyer wrote: > > nowadays). > > >> Intel suggests using -march=prescott (32-bit) and -march=nocona > > >> (64-bit) with gcc on Core2Duo processors and equivalent Xeons. >

Re: CPUTYPE in general - was Re: Which CPUTYPE for a dualcore Xeon on AMD64

2007-06-26 Thread Zavam, Vinícius
2007/6/26, Garrett Cooper <[EMAIL PROTECTED]>: Mike Meyer wrote: > In <[EMAIL PROTECTED]>, Garrett Cooper <[EMAIL PROTECTED]> typed: > >> Martin Turgeon wrote: >> >>> Mike Meyer a écrit : >>> In <[EMAIL PROTECTED]>, Roman Divacky <[EMAIL PROTECTED]> typed: For the record, I believe

Re: CPUTYPE in general - was Re: Which CPUTYPE for a dualcore Xeon on AMD64

2007-06-26 Thread Garrett Cooper
Mike Meyer wrote: In <[EMAIL PROTECTED]>, Garrett Cooper <[EMAIL PROTECTED]> typed: Martin Turgeon wrote: Mike Meyer a écrit : In <[EMAIL PROTECTED]>, Roman Divacky <[EMAIL PROTECTED]> typed: For the record, I believe the nocona cores are: pentium 4/some prescott, prescott 2m,

Re: CPUTYPE in general - was Re: Which CPUTYPE for a dualcore Xeon on AMD64

2007-06-25 Thread Mike Meyer
In <[EMAIL PROTECTED]>, Garrett Cooper <[EMAIL PROTECTED]> typed: > Martin Turgeon wrote: > > Mike Meyer a écrit : > >> In <[EMAIL PROTECTED]>, Roman Divacky > >> <[EMAIL PROTECTED]> typed: > >> For the record, I believe the nocona cores are: > >> pentium 4/some prescott, prescott 2m, cedar mill >

Re: CPUTYPE in general - was Re: Which CPUTYPE for a dualcore Xeon on AMD64

2007-06-25 Thread Garrett Cooper
Martin Turgeon wrote: Mike Meyer a écrit : In <[EMAIL PROTECTED]>, Roman Divacky <[EMAIL PROTECTED]> typed: you should know what cpu you bought, or just use cpuid (found in ports) and determine what cpu you have. Knowing what CPU you bought doesn't help a lot for the case asked about o

Re: CPUTYPE in general - was Re: Which CPUTYPE for a dualcore Xeon on AMD64

2007-06-25 Thread Martin Turgeon
Mike Meyer a écrit : In <[EMAIL PROTECTED]>, Roman Divacky <[EMAIL PROTECTED]> typed: you should know what cpu you bought, or just use cpuid (found in ports) and determine what cpu you have. Knowing what CPU you bought doesn't help a lot for the case asked about of "nocona" vs. "presco

Re: CPUTYPE in general - was Re: Which CPUTYPE for a dualcore Xeon on AMD64

2007-06-25 Thread Mike Meyer
In <[EMAIL PROTECTED]>, Roman Divacky <[EMAIL PROTECTED]> typed: > you should know what cpu you bought, or just use cpuid (found in ports) > and determine what cpu you have. Knowing what CPU you bought doesn't help a lot for the case asked about of "nocona" vs. "prescott". Those are the names of P

Re: CPUTYPE in general - was Re: Which CPUTYPE for a dualcore Xeon on AMD64

2007-06-25 Thread Roman Divacky
> In general, how does one decide which CPUTYPE to use? The connection > between the options for CPUTYPE and the output of dmesg is not so > obvious to me. I looked at the features advertised by dmesg (which in > my case included SSE3) and then reverse engineered bsd.cpu.mk to figure > out I

Re: CPUTYPE in general - was Re: Which CPUTYPE for a dualcore Xeon on AMD64

2007-06-25 Thread Stefan Sperling
On Mon, Jun 25, 2007 at 12:45:37PM -0500, Stephen Montgomery-Smith wrote: > Also, does setting CPUTYPE make a lot of difference to performance? I don't notice any difference in performance on my Athlon xp 2400 box if I set CPUTYPE=athlon-xp vs. leaving it alone. YMMV though, ask the gentoo peopl

CPUTYPE in general - was Re: Which CPUTYPE for a dualcore Xeon on AMD64

2007-06-25 Thread Stephen Montgomery-Smith
Jack L. wrote: On 6/24/07, Martin Turgeon <[EMAIL PROTECTED]> wrote: Hi, I recently installed AMD64 6.2 Release on 2 PowerEdge servers, both with dual core Xeon (3070 and 5110). I noticed when I was updating the sources that it was compiling as an Athlonxp by default. I was wondering if I shoul