From: Nikos Mavrogiannopoulos <nmav@gnutls.org>
To: David Miller <davem@davemloft.net>
Cc: cryptodev-linux-devel@gna.org, linux-crypto@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: comparison of the AF_ALG interface with the /dev/crypto
Date: Mon, 29 Aug 2011 09:32:19 +0200 [thread overview]
Message-ID: <4E5B4083.6050001@gnutls.org> (raw)
In-Reply-To: <20110828.163554.2024158531156183815.davem@davemloft.net>
On 08/28/2011 10:35 PM, David Miller wrote:
>> The benchmark idea was to test the speed of initialization, encryption
>> and deinitiation, as well as the encryption speed alone. These are the
>> most common use cases of the frameworks (i.e. how they would be used
>> by a cryptographic library).
> Be sure to use splice() with AF_ALG for maximum performance.
> For example, see the test program below. You'll need to replace
> "8192" with whatever the page size is on your cpu.
As I understand with splice you can encrypt only page aligned data that
span a multiple of pages. This is a very uncommon case. My benchmark
targets the generic case, i.e., the way this interface will be used in
crypto libraries like gnutls.
However, I'll update the comparison page to include the splice version
as well.
regards,
Nikos
next prev parent reply other threads:[~2011-08-29 7:32 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-28 13:17 comparison of the AF_ALG interface with the /dev/crypto Nikos Mavrogiannopoulos
2011-08-28 20:35 ` David Miller
2011-08-29 7:32 ` Nikos Mavrogiannopoulos [this message]
2011-08-29 16:09 ` David Miller
2011-08-30 16:33 ` [Cryptodev-linux-devel] " Phil Sutter
2011-09-01 2:15 ` Herbert Xu
2011-09-01 6:26 ` Nikos Mavrogiannopoulos
2011-09-01 6:43 ` Herbert Xu
2011-09-01 6:54 ` Nikos Mavrogiannopoulos
2011-09-01 6:56 ` Herbert Xu
2011-09-01 13:39 ` Phil Sutter
2011-09-01 14:14 ` Herbert Xu
2011-09-01 14:56 ` Nikos Mavrogiannopoulos
2011-09-01 14:59 ` Herbert Xu
2011-09-01 15:06 ` Nikos Mavrogiannopoulos
2011-09-01 15:08 ` Herbert Xu
2011-09-01 15:32 ` David Miller
2011-09-01 16:19 ` Nikos Mavrogiannopoulos
2011-09-01 15:09 ` Phil Sutter
2011-09-01 15:13 ` Herbert Xu
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