Re: Ok, what about benchmarks

[Marcus G. Daniels]

> I only did this side by side comparison when the guy I was working with asked 
> how long a simulation run took for me and I told him a few minutes and he said 
> that it was taking him hours.
>  
There are some superficial and `easy' things to fix that can make big 
performance differences.
It isn't fair to say some system is slow just because it runs a 
particular software package slower than another system. 

For example, one might discover that there was some diagnostic flag set 
(unintentionally) on one system that wasn't present on another.  Another 
possibility is that one system implicitly had extra work  (say, that 
Cygwin was doing CR/NL -> NL conversions).  And sometimes when there is 
a narrow system weakness, it's avoidable.  For example, the problem Paul 
mentioned with slow printfs on Windows can be fixed by running the shell 
in Emacs.

When there is a factor of ten difference for similar hardware, there is 
probably just some mistake that can be avoided with a little investigation.


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