Task performance with F@H running


macrumors G5
Original poster
Jun 6, 2003
Solon, OH
Has anyone else noticed what I have - namely that on a Mac, running Folding@Home doesn't have a significant impact on the speed of any other tasks you might be running; on Windows, there's a noticable slowdown on other things running alongside F@H.

As an example, I'll use converting a file to WAV in iTunes.
Mac, without F@H: 55x
Mac, with F@H: 55x
Windows, without F@H: 63x
Windows, with F@H: 43x

I believe the reason this occurs is due to differences in the design of the priority system on Mac OS X compared to the same system in Windows.

Can anyone back this up with further evidence?


macrumors 68020
Jun 18, 2003
I'm stating common knowledge, but Windows has always suffered terribly at multi-tasking, compared to Unix variants, but that's also why Windows does better as a gaming platform. You *can* tweak the foreground/background priority on Windows; on Unix variants, you don't have to (although you can, as well). Windows is a dime store OS, whadayawant?

Edit: I meant to add, newer Linux kernels tend to do better at Folding than Panther, by a couple of percent.
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