Stable Worldstones - Intel P4 vs AMD

[Subhro]

Kim Culhan sat at his 'puter and typed on 11/28/2005 1:05:
> Running -Stable make world with recent Intel and AMD hardware
> yielded some interesting results.
>
> One machine:
>
> CPU: AMD Athlon(tm) 64 Processor 3200+ (2010.31-MHz 686-class CPU)
> Origin = "AuthenticAMD"  Id = 0x20ff0  Stepping = 0
>
> Other machine:
>
> CPU: Intel(R) Pentium(R) 4 CPU 3.60GHz (3600.12-MHz 686-class CPU)
> Origin = "GenuineIntel"  Id = 0xf34  Stepping = 4
>
> The Intel machine had hyperthreading disabled in the bios.
>
> kernel config for both machines was GENERIC
>
> Running 'make world' several times on FreeBSD 6.0-STABLE from
> 11-26-05 a couple of representative timings were:
>
> AMD Athlon 64
>
> 45:42
>
> 45:19
>
>
> Intel P4
>
> 55:22
>
> 54:57
>
>
> Are there any optimizations for the P4 which might be added to the GENERIC
> kernel config to improve the performance ?
>
> -kim
>
> --
> w8hdkim err gmail.com
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>   
Let us have a look at /etc/make.conf. BTW, my *personal* opinion is AMD 
implements much better pipelining and concurrent processing compared to 
the Intel platform. So what you see is not something entirely unexpected.

Thanks
S.

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