Atom C2758 - loading aesni(4) reduces performance

Kevin Day toasty at dragondata.com
Mon May 25 04:15:21 UTC 2015


> On May 24, 2015, at 5:44 PM, John-Mark Gurney <jmg at funkthat.com> wrote:
> 
> 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..
> 

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

— Kevin




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