Date: Wed, 25 Jul 2018 14:00:21 +0200 From: Solar Designer <solar@...nwall.com> To: john-dev@...ts.openwall.com Subject: Re: Exclude items from test vectors for --test On Wed, Jul 25, 2018 at 01:48:39PM +0200, Frank Dittrich wrote: > Currently, all tests of the regular sha512crypt format use 5000 > iteraions. (May be we should change that.) > > So, I copied the ztex self tests to reproduce this. > > When using --test, john first tests all hashes, then it measures the > performance with just the top 2 hashes, i.e. 5000 iterations, unless you > pick other hashes using something like --costs=1021:1021. The current behavior appears to be different from what you simulated. With the actual sha512crypt-ztex format, the speed reported by --test is now approx. 4 times higher than what's seen when cracking hashes with 5000 iterations. This suggests that the many lower iteration count test vectors are used for the benchmark. > Are you suggesting we should support ./john --test --skip-self-test to > just measure the performance without first processing the regular self test? No. Alexander
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