aesni-intel slower than aes-x86_64

2010-04-11 Thread john terragon
Hi. My system has a core i5 520M and supports AES-NI. I wanted to do a rude performance test and so I ran these commands on a small (4GB) partition and on the dm-crypt device backed by it: 1) using the aesni-intel module: dd if=/dev/dev/mapper/vol of=/dev/null bs=4k 2) using only the generic aes-

Re: cryptodev support

2010-04-11 Thread Nikos Mavrogiannopoulos
Emanuele Cesena wrote: > On Wed, 2010-03-17 at 14:43 +0100, Nikos Mavrogiannopoulos wrote: >> It is one way that >> few other OS's support as well. For this reason it is the best from the >> user-space developer point of view to have a single API across many OS'. > This is really good, in my opinio