AMD 8950 GPU load

[hansaplast26]

Hi,

I build up a system to run hashcat. i7, 16gb mem, ssd and amd radeon hd 8950. what i notice actually is that the GPU load is fluctuating, from values between 60 and 100%. this happens even when the gpu is at a low temperature (68 degrees). is this behavior expected or is there something i can do to make the load always 100%??

PS running windows 7, and started with a fresh install with bare minimums, didn't get it to run on linux yet.

[epixoip]

depends on which version of hashcat you are using, what algorithm you are attacking, what attack modes you are running, what your -n and -u values are. maybe you can provide more information about what you are doing. otherwise i suggest getting more familiar with the software. read the wiki, read the forums.

[hansaplast26]

I played for a little while with a couple of -n and -u values, from small to big (first the tuning and then the fine tuning). I see the fluctuations mostly with the dictionary attack. could it be that the system is reading the dictionary and letting the gpu wait?

[epixoip]

you cannot achieve full acceleration with a straight wordlist attack against fast hashes. you need to add some rules.