Date: Sun, 19 Oct 2008 05:53:41 +0400 From: Solar Designer <solar@...nwall.com> To: john-users@...ts.openwall.com Subject: Re: fast freebsd MD5 implementation On Fri, Oct 17, 2008 at 01:52:02PM +0200, Simon Marechal wrote: > And for more spam, this adds an ICC target > > http://btb.banquise.net/bin/john-184.108.40.206-all-5-fastMD5.3.diff.gz I compiled this on linux-x86-64 with gcc 4.3.1 after some trivial changes (patch attached). > gcc: > Benchmarking: FreeBSD MD5 [12x]... DONE > Raw: 2640 c/s real, 2613 c/s virtual What version of gcc is that? I am not getting results this poor on x86-64 with gcc 4.3.1. Indeed, it is possible that gcc's shortcomings manifest themselves in a worse way when fewer registers are available. > icc: > Benchmarking: FreeBSD MD5 [12x]... DONE > Raw: 10380 c/s real, 10380 c/s virtual Here's what I am getting: Athlon 64 3000+ 2.0 GHz old code: 8970 c/s 4x: 7060 8x: 4500 12x: 5100 16x: 5100 20x: 5020 Q6600 2.4 GHz (one core): old code: 10200 c/s 4x: 14844 8x: 9592 12x: 9374 16x: 3200 20x: 3100 So even with gcc there's an improvement on Core 2, but only when no extra parallelism is introduced (beyond "one instance" of SSE2). This time all 5 builds actually crack all of my 120 test hashes. Thanks, Alexander View attachment "john-220.127.116.11-all-5-fastMD5.3-x64.diff" of type "text/plain" (2061 bytes) -- To unsubscribe, e-mail john-users-unsubscribe@...ts.openwall.com and reply to the automated confirmation request that will be sent to you.
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