To Affinity and Beyond!



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For example, Bioware recommends that you set Neverwinter Nights to use a single core, and they even provide a command in one of the .ini files for the game where you can set it permanently.  I did that and noticed a minor improvement in frame rates.

So older apps may benefit, but newer multithreaded ones won't.



Running hardcore apps on all but one core in realtime priority is a lot of fun too.



There may be times when one would want to set processor affinity to make a program run or run better.  For instance: to address compatibility issues with older software.  Some programs designed to work on a single-processor system may work better when affinity is set to a single CPU.  Will it improve performance otherwise? Probably not.

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