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Message-id: <9D4A2E77-E3E8-4D1C-AC62-E759066E79EC@erols.com>
Date: Tue, 06 Dec 2011 12:26:09 -0500
From: Erik Winkler <ewinkler@...ls.com>
To: john-dev@...ts.openwall.com
Subject: Re: Use of ICC
> This makes me wonder whether the code in question is being run at all or
> not (in your build). Can you try replacing the instruction with hlt,
> then running that build? (It should crash. If it does not crash, then
> the code is probably not being run.)
Yes, putting in the hlt command causes the app to crash with "Segmentation fault"
>>
>
> Sure, but does it run just as well?
>
Here are 2 benchmarks. No real difference that I see.
1) xgetbv commented out
../run/john -test
Benchmarking: Traditional DES [128/128 BS AVX-16]... DONE
Many salts: 19595K c/s real, 2450K c/s virtual
Only one salt: 15151K c/s real, 1895K c/s virtual
Benchmarking: BSDI DES (x725) [128/128 BS AVX-16]... DONE
Many salts: 666828 c/s real, 83374 c/s virtual
Only one salt: 562790 c/s real, 70649 c/s virtual
Benchmarking: FreeBSD MD5 [32/64 X2]... DONE
Raw: 57523 c/s real, 7208 c/s virtual
Benchmarking: OpenBSD Blowfish (x32) [32/64 X2]... DONE
Raw: 3774 c/s real, 473 c/s virtual
Benchmarking: Kerberos AFS DES [48/64 4K]... DONE
Short: 457932 c/s real, 382886 c/s virtual
Long: 1553K c/s real, 1553K c/s virtual
Benchmarking: LM DES [128/128 BS AVX-16]... DONE
Raw: 56551K c/s real, 7079K c/s virtual
Benchmarking: Tripcode DES [48/64 4K]... DONE
Raw: 415513 c/s real, 350348 c/s virtual
Benchmarking: dummy [N/A]... DONE
Raw: 76510K c/s real, 76510K c/s virtual
2) With .byte 0x0f, 0x01, 0xd0
../run/john -test
Benchmarking: Traditional DES [128/128 BS AVX-16]... DONE
Many salts: 19523K c/s real, 2444K c/s virtual
Only one salt: 15138K c/s real, 1894K c/s virtual
Benchmarking: BSDI DES (x725) [128/128 BS AVX-16]... DONE
Many salts: 666828 c/s real, 83353 c/s virtual
Only one salt: 568934 c/s real, 71187 c/s virtual
Benchmarking: FreeBSD MD5 [32/64 X2]... DONE
Raw: 57638 c/s real, 7210 c/s virtual
Benchmarking: OpenBSD Blowfish (x32) [32/64 X2]... DONE
Raw: 3794 c/s real, 474 c/s virtual
Benchmarking: Kerberos AFS DES [48/64 4K]... DONE
Short: 452966 c/s real, 378734 c/s virtual
Long: 1555K c/s real, 1555K c/s virtual
Benchmarking: LM DES [128/128 BS AVX-16]... DONE
Raw: 56492K c/s real, 7075K c/s virtual
Benchmarking: Tripcode DES [48/64 4K]... DONE
Raw: 402636 c/s real, 340064 c/s virtual
Benchmarking: dummy [N/A]... DONE
Raw: 76324K c/s real, 76324K c/s virtual
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