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, m...@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada http://www.tancsa.com/
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