Reposted from other thread:
27" iMac, iMac11,3, quad core 2.93GHz, 8GB RAM, ATI Radeon HD 5750 1GB, Mac OS X 10.8.
Running in Windowed mode, smallest window it will go, graphics on minimum, FPS limited to minimum (8), it runs at about 109-115% CPU. This used to always barely blip the CPU meter, under 10%.
Switching it to FPS unlimited, running about 170FPS, it's using about 240% CPU.
Going full screen (2560x1440) in same location and same graphics settings, I still get about 170 FPS and about 240% CPU use.
Raising graphics slider to Ultra, still in full screen, gives me about 25FPS and 150% CPU (this is on clock tower, in 1st person, looking at SW Keep).
Ultra, full screen, FPS limited to 8, gives about 110% CPU.
Now, I love that it's running multi-threaded and able to use the multi-core processors, but it's obviously not doing something right. There's a thread that's busy-waiting eating up a full core, is what it looks like to me, even when almost nothing is happening.
Oh, and for the record, I removed all WTF, Interface, Cache folders before doing the patch, and I haven't yet added back any addons.
Edited by Growltiger on 8/29/2012 6:40 AM PDT