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From: "Sam Leffler" <sam@errno.com>
To: "Jan Grant" <Jan.Grant@bristol.ac.uk>,
	"Jacques A. Vidrine" <nectar@FreeBSD.ORG>
Cc: "Mike Tancsa" <mike@sentex.net>,
	"freebsd-stable" <freebsd-stable@FreeBSD.ORG>
References: <Pine.GSO.4.44.0302261239560.27130-100000@mail.ilrt.bris.ac.uk>
Subject: Re: HEADS UP: OpenSSL 0.9.7 in -STABLE
Date: Wed, 26 Feb 2003 09:02:40 -0800
Organization: Errno Consulting
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> On Tue, 25 Feb 2003, Jacques A. Vidrine wrote:
>
> > On Tue, Feb 25, 2003 at 10:30:54AM -0500, Mike Tancsa wrote:
> > > At 07:32 AM 25/02/2003 -0600, Jacques A. Vidrine wrote:
> >
> > > >I believe you also need `device cryptodev', else when your
application
> > > >tries to open /dev/crypto it will get ENXIO (use truss or ktrace to
> > > >see if this is what is happening).
> > >
> > > That was it, Thanks!
> >
> > Great!
> >
> > > There is now a VERY noticeable difference in the amount of CPU that
sshd
> > > takes.  The backup server is a PIII800. When doing a dump from a fast
> > > client, with 3des I was looking at close to 40%-50% of CPU going to
sshd on
> > > the server. Now I see about 3%-5%.
> >
> > So how is the total throughput?  Is it a win or a lose with the 7951?
>
> Excuse my curiosity: would measuring the throughput of a loopback ssh
> link give a good estimate of this?

Throughput is almost certainly going to be limited by the crypto h/w and to
measure how fast that is you can use openssl speed -elapsed -evp des3 or run
the cryptotest program (I just MFC'd it).

    Sam


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