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Affinity problem

D

dorion

Senior member
I'm running a Phenom II 965 on a Gigabyte GA-MA770-DS3(no official support for my CPU) and Windows 7 64-bit. My problem is something really sucks on my computer. I submit as evidence screenshots of CloneDVD encoding The World is not Enough.

CloneDVD with all 4 cores.
http://img202.imageshack.us/img202/1329/noaffinity.png
http://img822.imageshack.us/img822/4296/noaffinitytime.png(Total Time)

CloneDVD with only the fourth core.
http://img507.imageshack.us/img507/5474/oneaffinity.png
http://img843.imageshack.us/img843/4500/oneaffinitytime.png(Total Time)

The source and destination of the videos was to my NAS over gigabit.

Is the problem my AM2+ motherboard which is as far as I can discover the only non-OEM AM3 compatible motherboard known to man, or do AMDs(and Intels?) have this problem no matter what?
 
I don't think CloneDVD is multi-threaded. I did a google search and many people are complaining about the same issue. Have you tried Handbrake instead?
 
you tried a source/destination other than the NAS with similar results?

edit: richie seems to have nailed it
 
Last edited:
The problem is less that CloneDVD isn't multithreaded, more that CloneDVD and other similar single threaded apps don't get scheduled to a single core and instead get scheduled across all four cores in such a way that I'm using 25% of my processor with worse performance.
 
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