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post #27 of (permalink) Old 06-22-2017, 08:50 PM
tictoc
2+2=5
 
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Join Date: Feb 2011
Posts: 4,474

Looking through my results, I'm not sure if running 4x is more efficient than 1x.  With variable run-times I would really need a much bigger sample in order to get some relevent averages.  

 

I did find one shared task with a known setup.

 

@Egilman at least for this one task, a 480 in Linux isn't quite as fast as it could be.  Generally speaking, for most non-DP tasks a 480 should be at least 50% faster than a 7970/280x. 

The CPU time is interesting though.  I see virtually zero CPU overhead when running 4x tasks in Linux.  The biggest spike in CPU usage, that I have tracked, is 3% usage while running 4 XANSONS tasks.  



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