Date: Thu, 8 Mar 2012 06:34:15 +1300 From: Andrew Thompson <thompsa@FreeBSD.org> To: Karl Denninger <karl@denninger.net> Cc: Ian Lepore <freebsd@damnhippie.dyndns.org>, freebsd-stable@freebsd.org Subject: Re: Xeon Processors with AES instructions and geli encryption Message-ID: <CAFAOGNQ0b9dz5m7-kPoWSmMD3_CvzDXv%2BLhztx5MKBovwFXoAw@mail.gmail.com> In-Reply-To: <4F5785D0.4010708@denninger.net> References: <4F577A24.9030307@denninger.net> <1331135702.32194.23.camel@revolution.hippie.lan> <4F5785D0.4010708@denninger.net>
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FYI, there is a bug in 8.2 for 256b keys and was fixed in 8.2-stable. You may want to apply the fix if it causes you issues. http://www.FreeBSD.org/cgi/query-pr.cgi?pr=3D155118 Andrew On 8 March 2012 04:59, Karl Denninger <karl@denninger.net> wrote: > Thanks; the machines in question are on 8.2, so this sounds pretty good. > > On 3/7/2012 9:55 AM, Ian Lepore wrote: >> 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. =A0The 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 t= o >>> FreeBSD. >>> >>> Thanks in advance! >>> >> It looks like it does as of 8.2 when the aesni driver was added. >> >> -- Ian >> >> >> _______________________________________________ >> freebsd-stable@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-stable >> To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org= " >> >> >> %SPAMBLOCK-SYS: Matched [@freebsd.org+], message ok > > -- > -- Karl Denninger > /The Market Ticker =AE/ <http://market-ticker.org>; > Cuda Systems LLC > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
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