Intel 10Gb

[Jack Vogel]

On Sun, May 9, 2010 at 6:43 AM, Barney Cordoba <barney_cordoba at yahoo.com>wrote:

>
>
> --- On Sat, 5/8/10, Murat Balaban <murat at enderunix.org> wrote:
>
> > From: Murat Balaban <murat at enderunix.org>
> > Subject: Re: Intel 10Gb
> > To: "Vincent Hoffman" <vince at unsane.co.uk>
> > Cc: freebsd-net at freebsd.org, freebsd-performance at freebsd.org, "grarpamp"
> <grarpamp at gmail.com>
> > Date: Saturday, May 8, 2010, 8:59 AM
> >
> > Much of the FreeBSD networking stack has been made parallel
> > in order to
> > cope with high packet rates at 10 Gig/sec operation.
> >
> > I've seen good numbers (near 10 Gig) in my tests involving
> > TCP/UDP
> > send/receive. (latest Intel driver).
> >
> > As far as BPF is concerned, above statement does not hold
> > true,
> > since there is some work that needs to be done here in
> > terms
> > of BPF locking and parallelism. My tests show that there
> > is a high lock contention around "bpf interface lock",
> > resulting
> > in input errors at high packet rates and with many bpf
> > devices.
> >
> > I belive GSoC 2010 project, Multiqueue BPF, is a milestone
> > for this:
> > http://www.freebsd.org/projects/ideas/ideas.html#p-multiqbpf
> >
> > I'm also working on this problem myself and will post a
> > diff whenever
> > I have something usable.
> >
> >
> > --
> > Murat
> > http://www.enderunix.org/murat/
> >
> >
> >
> > On Sat, 2010-05-08 at 10:01 +0100, Vincent Hoffman
> >
> >  wrote:
> > > Looks a little like
> > > http://lists.freebsd.org/pipermail/svn-src-all/2010-May/023679.html
> > > but for intel. cool.
> > >
> > > Vince
> > > On 07/05/2010 23:01, grarpamp wrote:
> > > > Just wondering in general these days how close
> > FreeBSD is to
> > > > full 10Gb rates at various packet sizes from
> > minimum ethernet
> > > > frame to max jumbo 65k++. For things like BPF,
> > ipfw/pf, routing,
> > > > switching, etc.
> > > > http://www.ntop.org/blog/?p=86
> > > > _______________________________________________
>
> Blah, Blah, Blah. Let's see some real numbers on real networks under
> real loads. Until then, you've got nothing.
>
> BC
>
>
>
Blah blah blah, you're one to talk, do you EVER do anything but
criticize others? Nothing is right.

Jack