GPU usage optimization

[azaran]

Hello,

I've run across following commands setting some GPU variables usable on windows:

setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100

This topic explains the meaning of each of them. I'm wondering whether it would have any effect on hashcat's cracking speed. Did anybody test it, already? I'm asking so that I don't waste time by some more complex testing. 

I think it might not be viable for memory-demanding hash-modes but I might be wrong.

Regards

[atom]

This is relevant only for AMD GPU. Don't use these settings, they can break things.

[azaran]

Ok. Thanks, I thought it might be the case but I wanted to be 100% sure.