[wellylug] Linux vs Windows performance.

[Brent Wood]

Apologies for sending everyone an image, but at 5k it is prob smaller than some
of my posts :-)


The image shows some benchmarks from running an iterative modelling package. It
was run on a few Windows & Linux systems, hence W & L on the image.

My Athon64 (even with 32bit OS in this case) is a 3500+, despite a clock speed
of 2.2Ghz, so the 3500 seems a reasonable claim from this test. 

All systems had ample memory, no swapping & time is cpu time, not elapsed time.

Linux compiled with gcc, Windows with mingw. The two with lines between the W &
L points are dual boot laptops. So not just the same cpu, but the same box.

I know we all love Tux, but here he (she?) is about 3.5x faster than Windows XP
Pro. Is the mingw dll that inefficient? Is Windows really that bad?

We will be looking further into this, with some models taking weeks to run,
performance gains will make a big difference.


Any comments/suggestions?


Thanks

  Brent
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