On Thursday 09 December 2004 09:47, Brian Hechinger wrote:
> On Wed, Dec 08, 2004 at 04:36:43PM +0100, Felix Deichmann wrote:
> > Dhrystone is THE CPU benchmark for a VAX :-)
> > 1 VUP = 1657 Dhrystones
> > And then compare to 3.8 VUPs for the KA655 (higher is better).
>
> ok, host machine:
>
> PowerMac 8600, 400Mhz G3, 512K L2, 416M RAM
> NetBSD 2.0
> simh 3.3
>
> VAX MIPS rating =      1.412
>
> well, that's not great.  let's see how the E3500 does. ;)

Probably not a whole lot better... simh is single-threaded, so it'll 
only really use one CPU, and there's probably not much speed difference 
to SimH between the same MHz PPC G3 and UltraSparcII.  Almost 
definately no more than 50% better, and the UltraSparc might actually 
be worse (for CPU intensive tasks).  Sun Ultrasparc machines - 
especially the Exy00 enterprise machines - are built for I/O 
performance, not CPU horsepower.  

Pat
-- 
Purdue University Research Computing --  http://www.itap.purdue.edu/rcac