Xeon Processors with AES instructions and geli encryption

Ian Lepore freebsd at damnhippie.dyndns.org
Wed Mar 7 15:55:12 UTC 2012

On Wed, 2012-03-07 at 09:09 -0600, Karl Denninger wrote:
> Does the crypto(9) framework recognize and use these instructions? 
> Looks like the Windmere-series Xeons will drop into my system boards; I
> gain two cores per CPU at the same time, so I'll go from an 8-way SMP
> system to a 12-way one.
> I am considering spending the money to upgrade a couple of servers here
> that run geli-encrypted disks, as during heavy I/O they spend a LOT of
> their CPU time on the disk encryption.  The differences I see in the use
> of TrueCrypt on Windows machines that have AES instructions .vs. those
> that do not are very significant and I'm curious if this carries over to
> FreeBSD.
> Thanks in advance!

It looks like it does as of 8.2 when the aesni driver was added.

-- Ian

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