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Date: Fri, 24 Jul 2015 18:15:16 +0200
From: Agnieszka Bielec <>
Subject: Re: PHC: my yescrypt and lyra2 benchmarks

2015-07-24 17:46 GMT+02:00 Solar Designer <>:
> Agnieszka,
> On Wed, Jul 22, 2015 at 05:01:42PM +0200, Solar Designer wrote:
>> I think m=62 is too much fine-tuning.  I suggest that you use 64 here.
>> It will also bring Lyra2 to almost the same memory usage per hash as you
>> have for yescrypt at r=6.  So we'd have both at ~1.5 MB.
>> As a separate set of benchmarks, please also configure both for ~2 MB.
>> Please use m=80 for Lyra2 (giving 1920 KiB?) and r=8 for yescrypt
>> (giving a little over 2 MiB).
> I thought you'd complete these benchmarks within a day (thus, yesterday)
> and we'd pass them to the PHC discussions list by now.  Since you
> already had the code, I thought this would be quick and easy for you.
> Why is this not done yet?  Have you chosen to try to optimize your
> yescrypt code some more first?

sorry, I'm still trying to optimize yescrypt and undertsand what's
going on with this copying, this is strange

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