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Date: Mon, 20 Feb 2012 18:32:47 +0100
From: Lukas Odzioba <lukas.odzioba@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: GPU formats .text size
2012/2/20 magnum <john.magnum@...hmail.com>:
> I wonder what makes for the large .text size for -cuda, it's 3x a
> non-GPU build. Maybe this is completely normal?
>
> text data bss dec hex filename
> 1065513 122008 936064 2123585 206741 john-64i
> 1117843 131824 1559864 2809531 2adebb john-opencl
> 3262601 128248 14934280 18325129 1179e89 john-cuda
> 3314803 138064 15558104 19010971 122159b john-gpu
>
> Also, the .bss is 15x but it's not by far as bad as the situation we
> rectified half a year ago in
> http://www.openwall.com/lists/john-dev/2011/11/28/1
>
> magnum
>
It is because of big tables for passwords and hashes ( for each
format). I'll change that thanks a lot for pointing it out.
for example phpass:
>>> 126(BLOCKS)*3*256(THREADS)*32(HASH+PASS)=3096576
This is from previous (not latest) version:
ukasz@...kstar$size *.o | sort -rnk 3 | head
1881 288 3096648 3098817 2f48c1 phpasscuda_fmt.o
3954 168 229450 233572 39064 cryptmd5cuda_fmt.o
21092 4096 147440 172628 2a254 x86.o
7715 168 145508 153391 2572f cryptsha512cuda_fmt.o
4830 168 129240 134238 20c5e cryptsha256cuda_fmt.o
1250 168 114896 116314 1c65a mscash2cuda_fmt.o
5942 232 21808 27982 6d4e AFS_fmt.o
26857 0 20488 47345 b8f1 x86-sse.o
3876 208 19936 24020 5dd4 c3_fmt.o
2043 192 16448 18683 48fb dummy.o
Lukas
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