[RC5] AXP client slow on RC5

Henrik Berglund SdU adb94hbd at mds.mdh.se
Fri Jun 1 02:10:32 EDT 2001


On Thu, 31 May 2001, Gregor Terrie wrote:

> My question is rather simple: Is it normal for a DPW500au (Digital Alpha 
> Workstation at 500Mhz) to  Benchmark for RC5 core #0 (axp bmeyer) 
> 0.00:00:16.60 [806,546.70 keys/sec] ?
yes think so.
> 
> I supposed a 64 bit CPU would be better suited to crunch 64bit RC5 
> blocks... Is the clients code optimised for Linux-Alpha or just ported to 
> Linux-Alpha? What other reasons might cause this 'lack of performance'?
alpha cpu is noot good at the instruction that is used most in rc5
rotate something.

> Do Intel/AMD 500Mhz chips benchmark similarly or do they perform 
> considerably better/worse?
> 
I have a AMD k6-2 500MHz and it does
821kkeys/sec rc5
2,832,445.45 nodes/sec ogr

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