Date: Fri, 23 Aug 2013 11:26:03 -0400 From: Mike Tancsa <mike@sentex.net> To: Ollivier Robert <roberto@keltia.freenix.fr> Cc: freebsd-current@freebsd.org, security@freebsd.org Subject: Re: patch to improve AES-NI performance Message-ID: <52177F0B.9020906@sentex.net> In-Reply-To: <20130823151615.GD41379@roberto02-aw.erc.corp.eurocontrol.int> References: <20130822202027.GH94127@funkthat.com> <20130823151615.GD41379@roberto02-aw.erc.corp.eurocontrol.int>
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On 8/23/2013 11:16 AM, Ollivier Robert wrote: > According to John-Mark Gurney on Thu, Aug 22, 2013 at 01:20:27PM -0700: >> I have developed a patch to improve AES-NI performance. If you took the >> AES-XTS algorithm into userland (no cryptodev or geli usage), these >> changes improve the performance over 10x in my tests (from ~150MB/sec to >> over 2GB/sec). In tests of geli on gnop, the performance improvement is >> more moderate, around 4x due to overhead in other parts of the system. > > Thanks a lot for this patch. Now, looking at it in the stable/9 context, I can see that pjd did not merge (as he said at the time of commit) r226839 & r226839. Is there any objection to merge these two (and possibly 247061 as well -- copyright update)? > > I ask that for two reasons, these two revisions are speeding up AES-NI quite a bit and they are required for using jmg's patch. > > I'll be testing all this in the next few days on my new AES-NI enabled machine. > Speeding up userland AES is very interesting to me for a couple of apps. If there is a proper way I should test on RELENG_9, please let me know as I am few boxes that I would be happy to test/deploy on. ---Mike -- ------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike@sentex.net Providing Internet services since 1994 www.sentex.net Cambridge, Ontario Canada http://www.tancsa.com/
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