From: Nikos Mavrogiannopoulos <n...@gnutls.org>
Date: Mon, 29 Aug 2011 09:32:19 +0200

> 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.

Only the buffer you use must have these properties, you can use
whatever lengths you like.
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