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Date:      Sun, 24 May 2015 23:15:17 -0500
From:      Kevin Day <toasty@dragondata.com>
To:        John-Mark Gurney <jmg@funkthat.com>
Cc:        freebsd-security@freebsd.org
Subject:   Re: Atom C2758 - loading aesni(4) reduces performance
Message-ID:  <687C0C52-08FA-4234-9A64-527163EED3C8@dragondata.com>
In-Reply-To: <20150524224454.GX37063@funkthat.com>
References:  <6BA42026-C785-40B5-B9CF-DD4280693C41@dragondata.com> <20150524224454.GX37063@funkthat.com>

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> On May 24, 2015, at 5:44 PM, John-Mark Gurney <jmg@funkthat.com> =
wrote:
>=20
> If you have cryptodev loaded, this is to be expected as OpenSSL will
> use /dev/crypto instead of the AES-NI instructions..  Just don't load
> cryptodev and you'll be fine..
>=20

So to make sure I=E2=80=99m understanding=E2=80=A6 openssl has native =
AES-NI support, and it also can use /dev/crypto. It=E2=80=99s preferring =
/dev/crypto, but /dev/crypto has much higher overhead?

=E2=80=94 Kevin





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