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Message-ID: <CAF37FbUCue86TBJ9qzZ33gyHBRjYEjZQsdtSDYN3h8_YmcWXAA@mail.gmail.com>
Date: Tue, 29 Jan 2013 11:46:57 +0100
From: atom <atom@...hcat.net>
To: john-dev@...ts.openwall.com
Subject: Re: DCC2 performance
The default values are all set individually for each algorithm /
gpu-vendor. There is no algorithm behind which tries to evaluate the
theoretical best value. It is all hardcoded.
If the desktop starts lagging I am lowering these defaults for
gpu-accel and gpu-loops until the desktop runs lagfree (plus some
spare value). This gives the -new- user a good first impression of
stability and when he gains more experience with the program he finds
out how to manually override this for maximum performance.
Especially for slow hashes like DCC2 and WPA I am setting them to
extreme low values. They produce more load to the overall System
because there is no candidate attack amplifier on GPU. This generates
more load to the Disc, since it has to load more data, and more load
to the bus because it has to copy this data.
On Tue, Jan 29, 2013 at 3:58 AM, Solar Designer <solar@...nwall.com> wrote:
> Hi atom,
>
> On Mon, Jan 28, 2013 at 04:39:41PM +0100, atom wrote:
>> But for oclHashcat-plus default workload settings are a trademark
>> between cracking speed and desktop lags. That is for all hashes not
>> just DCC2.
>
> Thank you for explaining this.
>
> I did not expect you'd be OK with the speed being as low as ~70% of max
> by default. I thought the default would be above 90% of max.
>
> Alexander
--
atom
email: atom@...hcat.net
web: http://hashcat.net/
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