Date: Sun, 17 Jun 2012 17:38:01 +0200 From: magnum <john.magnum@...hmail.com> To: john-dev@...ts.openwall.com Subject: Re: [patch] optional new raw sha1 implemetation On 2012-06-17 17:31, Solar Designer wrote: > On Sun, Jun 17, 2012 at 07:27:53PM +0400, Solar Designer wrote: >> There's currently no speedup on XOP: >> >> user@...l:~/john/magnum-jumbo-cpu3/src$ ../run/john -te -fo=rawsha1_sse4 >> Benchmarking: Raw SHA-1 [taviso sse4]... DONE >> Raw: 21591K c/s real, 21591K c/s virtual >> >> user@...l:~/john/magnum-jumbo-cpu3/src$ ../run/john -te -fo=raw-sha1 >> Benchmarking: Raw SHA-1 [SSE2i 8x]... DONE >> Raw: 23513K c/s real, 23751K c/s virtual >> >> (This is a linux-x86-64-xop build.) I guess some speedup can be >> achieved by adding use of XOP intrinsics into your new code - that is, >> it should become faster than 23.5M c/s then. > > BTW, I've just checked that -mxop implies SSE4.1, so the above should > have used the SSE4.1 trick in Tavis' code. I built with the -native target so I should have got the same speed as you for Simon's format. But 22600K is the best I get from the fluctuations. Any idea why? Is an -xop build different in some way? magnum
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