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22% GPU usage in WOW - Page 4

post #31 of 33
Quote:
Originally Posted by FallenFaux View Post
As of patch 3.1 wow supports 16 cores up from 2.

http://www.wowwiki.com/CVar_processAffinityMask

Scroll down a bit for modifications for number of cores.
Try setting the affinity like in the link. It might be stuck on 2 cores or something funky. While it might still be heavy on 2 cores and light on the rest of the cores, if you can get it to lessen the load on the 2 heavy cores you might get some improvement. What does your CPU usage per core look like while in a city?
    
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post #32 of 33
Quote:
Originally Posted by hamzta09 View Post
But the game looks hideous without shadows. Looks flat and boring lol.

DX11 is on, AA is at 8x.
Shadows are busted in wow. The engine just cant handle it or something
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post #33 of 33
Quote:
Originally Posted by sabbathcrazy View Post
I do not think its your CPU, its just a easy conclusion to draw. Your CPU is only being used at %50 so its not your CPU.
This is actually totally false, but is a common misunderstanding about the nature of things.

Unless you have a single core cpu, you can become CPU-bottlenecked at significantly less than 100% overall CPU usage. All the game has to do is peg out one of your cores and not be able to pass additional instructions over to a different core due to the possibility of creating concurrency issues by doing so.

Put another way, even if a game can supposedly use 4 cores or 8 or whatever, there's always one 'main' thread that handles instructions that must be processed sequentially, and hence can't be farmed over to other cores at will because each core is isolated from the other.

This means that if you have a quad, you can actually get CPU BN'd at 25% total usage. It happens pretty often, in fact, with MMO's and other CPU-intensive games.
Edited by brettjv - 10/24/11 at 5:46pm
    
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