Re: [RFC] [PATCH 2/5] pcrypt: Add pcrypt crypto parallelization wrapper

[Steffen Klassert <steffen.klassert@secunet.com>]

On Tue, Jun 23, 2009 at 05:18:52PM +0800, Herbert Xu wrote:
> On Tue, Jun 23, 2009 at 11:14:29AM +0200, Steffen Klassert wrote:
> >
> > I posted some numbers for the actual softirq based version with the
> > first patchset, see:
> > http://www.mail-archive.com/linux-crypto@vger.kernel.org/msg03035.html
> 
> Thanks, but I was thinking of softirq numbers vs. workqueue numbers.
> 

I have just some numbers from a network based parallelization
that uses threads. So it's probaply not really comparable to
the pcrypt version. To compare the pcrypt version, we would need a
thread based padata version. If you think that it is needed I could
care about this as soon as I finished the ahash work.

Anyway, here are numbers for the network based versions:

I did forwarding tests with the thread version and two quad core machines
(Intel Core 2 Quad Q6600):

linux-2.6.25.2 + thread based (network) parallelization
Packetsize: 1420 byte
Encryption: aes192-sha1
Unidirectional throughput: 660 Mbit/s (tcp)

After rewriting this to use remote softirqs I've got with the same
environment:

linux-2.6-git (Dec 01, 2008) + softirq based (network) parallelization
Packetsize: 1420 byte
Encryption: aes192-sha1
Unidirectional throughput: 910 Mbit/s (tcp)