whats the deal with the low WU? I've just noticed that on mine and it seems that everywhere I look people's WU is nowhere close to their hash rate. All of my gpu miners have been around 95% WU to khash.
Is this an asic thing?
Here's my cgminer running 10 Gridseeds: http://imgur.com/Lw7jEIK
Truth be told I never learned exactly what WU meant...so if you're inclined to explain I'd appreciate it.

from my google searches before I posted this:
"cgminer WU is the Work Utility defined as the number of diff1 shares work / minute"
so pretty much what that means to me is it's the work submitted to the pool, the higher the better. The low WU numbers would seem like it's not submitting much completed work back to the pool unless I'm missing something...
Thanks. Here is my cgminer running 10:
http://i.imgur.com/Jq5imub.pngRunning for about an hour. You can see the one with HW of 10.
5 on one power supply is using 0.80 amps/49.3-50.4 watts (fans on - power supply model 11PWR002-360W).
10 on one power supply is using 1.40-1.45 amps/90.5-95.1 watts (fans on - power supply model 11PWR002-360W).
Going to wire up 10 more on a second power supply....which brings up an interesting question. What are the miners with over 10 USB devices doing about the display of so many in cgminer? Guess I'll just have to maximize my SSH screen. Not a bad problem to have.
