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Date: Fri, 17 Oct 2008 13:52:02 +0200
From: Simon Marechal <simon@...quise.net>
To: john-users@...ts.openwall.com
Subject: Re: fast freebsd MD5 implementation [with the attached
file ...]
And for more spam, this adds an ICC target
http://btb.banquise.net/bin/john-1.7.3.1-all-5-fastMD5.3.diff.gz
gcc:
Benchmarking: FreeBSD MD5 [12x]... DONE
Raw: 2640 c/s real, 2613 c/s virtual
icc:
Benchmarking: FreeBSD MD5 [12x]... DONE
Raw: 10380 c/s real, 10380 c/s virtual
gcc code for intrinsics is horrible:
98c: 66 0f ef d7 pxor %xmm7,%xmm2
990: 66 0f 6f ac 24 f0 09 movdqa 0x9f0(%esp),%xmm5
997: 00 00
999: 66 0f fe ac 24 c0 09 paddd 0x9c0(%esp),%xmm5
9a0: 00 00
9a2: 66 0f 7f ac 24 f0 09 movdqa %xmm5,0x9f0(%esp)
9a9: 00 00
9ab: 66 0f 6f 8c 24 00 0a movdqa 0xa00(%esp),%xmm1
9b2: 00 00
9b4: 66 0f fe 8c 24 d0 09 paddd 0x9d0(%esp),%xmm1
9bb: 00 00
9bd: 66 0f 7f 8c 24 00 0a movdqa %xmm1,0xa00(%esp)
9c4: 00 00
9c6: 66 0f 6f bc 24 10 0a movdqa 0xa10(%esp),%xmm7
9cd: 00 00
9cf: 66 0f fe fa paddd %xmm2,%xmm7
icc, on the other hand, stays in registers as much as possible.
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