I have yet to test
Eternal Darkness, it is however on my 'todo' list, but I have a billion or so other games I need to check.....so probably faster to ask someone else. Or just try it yourself
However I can raise some points here:
I have an AMD64 3200+ @ 2.2GHz / 1024MB of DDR400 RAM / GeForce FX 5950u and I get a whopping 3-4 FPS in many games, thus in all honesty until the emulator has further refinements, and PCs become powerfull enough you are not going to get 'enjoyable' speeds even if it does actually go ingame.
I would recommend a game like "TimeSplitters 2" which runs 7-45 FPS ingame...depending on the amount of action
Pssstt it's illegal to download games, so even if this game does work in dolphin, you would of course buy the original game, aquire a BBA and PSO and make 1 copy for yourself
Telling someone to shutup via the internet is about as usefull as pissing into a tornado and expecting to hit the target....chances are he hasn't responded simply due to not reading this thread yet.