From: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
To: Francis Moreau <francis.moro@gmail.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>,
helge.hafting@aitel.hist.no, linux-kernel@vger.kernel.org,
linux-crypto@vger.kernel.org
Subject: Re: [CRYPTO] is it really optimized ?
Date: Tue, 17 Apr 2007 17:04:31 +0400 [thread overview]
Message-ID: <20070417130431.GA8685@2ka.mipt.ru> (raw)
In-Reply-To: <38b2ab8a0704170536x15920b15xedfd518cad50cee@mail.gmail.com>
On Tue, Apr 17, 2007 at 02:36:09PM +0200, Francis Moreau (francis.moro@gmail.com) wrote:
> >> BTW, here are figures I got with 2 different versions of the driver
> >> when using tcrypt module. The second being the result with the
> >> optimized driver (no key reloading on each block):
> >>
> >> normal version:
> >> test 4 (128 bit key, 8192 byte blocks): 1 operation in 67991 cycles (8192
> >> bytes)
> >>
> >> optimized version:
> >> test 4 (128 bit key, 8192 byte blocks): 1 operation in 51783 cycles (8192
> >> bytes)
> >>
> >> So the gain is 16000 cycles which seems to worth the change, isn't it ?
> >
> >Sounds like it would. It would help of course if you posted the patch :)
> >
>
> OK, I tried to cook up something very simple. Since I don't know this
> code, please be indulgent when reading the following patch ;)
Which means that after one has loaded ecryptfs module it can not use
ipsec and dm-crypt if there is only one crypto algo registered...
--
Evgeniy Polyakov
next prev parent reply other threads:[~2007-04-17 13:04 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-12 19:39 [CRYPTO] is it really optimized ? Francis Moreau
2007-04-13 12:17 ` Helge Hafting
2007-04-13 13:30 ` Francis Moreau
2007-04-14 4:30 ` Herbert Xu
2007-04-14 13:15 ` Francis Moreau
2007-04-14 19:34 ` Herbert Xu
2007-04-14 19:44 ` Michael Halcrow
2007-04-15 11:06 ` Satyam Sharma
2007-04-15 14:31 ` Satyam Sharma
2007-04-15 15:31 ` Michael Halcrow
2007-04-15 16:10 ` Satyam Sharma
2007-04-14 21:10 ` Francis Moreau
2007-04-15 7:52 ` Herbert Xu
2007-04-16 8:37 ` Francis Moreau
2007-04-17 0:41 ` Herbert Xu
2007-04-17 12:36 ` Francis Moreau
2007-04-17 13:04 ` Evgeniy Polyakov [this message]
2007-04-17 13:42 ` Herbert Xu
2007-04-17 14:01 ` Francis Moreau
2007-04-17 15:08 ` Evgeniy Polyakov
2007-04-17 15:34 ` Francis Moreau
2007-04-17 15:57 ` Evgeniy Polyakov
2007-04-17 16:18 ` Francis Moreau
2007-04-17 17:07 ` Evgeniy Polyakov
2007-04-17 13:57 ` Francis Moreau
2007-04-17 13:40 ` Herbert Xu
2007-04-17 13:59 ` Francis Moreau
2007-04-17 14:02 ` Herbert Xu
2007-04-17 14:41 ` Francis Moreau
2007-04-17 15:40 ` Roland Dreier
2007-04-17 16:14 ` Francis Moreau
2007-04-17 16:33 ` Roland Dreier
2007-04-17 17:24 ` Francis Moreau
2007-04-17 17:34 ` Roland Dreier
2007-04-19 8:07 ` Francis Moreau
2007-04-23 13:56 ` Francis Moreau
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