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Date: Fri, 5 Aug 2011 02:05:54 +0200
From: Lukas Odzioba <>
Subject: Re: JtR CUDA patch

> Gpu is higly dependant on what you are doing and heat.
> It's ok to see your mouse almost dead or some flickering from the
> monitor; try to see if the "slowness" comes from overheating
> or maybe you are using composite/Gl effects on your Window Manager?

Phpass is the worst in this case:
1 crypt_all invocation takes a lot
2 it is using page locked memory (dont ask me why eats responsivnes)

Usually setting THREADS and BLOCKS to something smaller helps a bit.


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