G5 perfomance on YDL4.0

[R. Scott Boughton]

K Hanai wrote:

>When I test the 2.5 GHz dual G5 machine (RAM 2 GB) for a perl 
>script or an image analysis program written by me in C compiled 
>on YDL 4.0, the performance is worth than a dual Xeon (2.8 GHz, 
>RAM 2 GB) machine (RedHat 9.0). When 6000 tiff images were treated, 
>the dual G5 machine took 42 min, on the other hand, the dual 
>Xeon machine completed the job in 36 min. Another dual G5 
>(2 GHz, RAM 2.5 GB) took 52 min for the same job.
>  
>
Wouldn't you expect your performance to improve with the clock speed?

2.5GHz / 2.8GHz * 42 min = 37.5 min
2.0GHz / 2.8 GHz * 52 min = 37.1 min

This is pretty close to what you're seeing based purely on compute cycles.

-- 
Scott