ipfw meets netmap (6.5 Mpps in userspace)

[Luigi Rizzo]

On Mon, Aug 13, 2012 at 03:54:41PM +0300, ?zkan KIRIK wrote:
> does igb driver supported by netmap ? if yes, how multiqueue support works?

yes igb is supported, and multiqueue is supported (ipfw-user
just reads from all queues).
Note that igb is a 1Gbit/card peaking at 1.488 Mpps, which is
much slower than what ipfw-user can deal with, so you do not
really need multiqueue.

You might find some benefits at 10G if you run multiple ipfw-user
instances, one per queue, bound to separate cores
(you need some small changes in the netmap I/O routines to
bind to individual queues).

cheers
luigi

> On Mon, Aug 13, 2012 at 4:08 PM, Luigi Rizzo <rizzo at iet.unipi.it> wrote:
> > On Mon, Aug 13, 2012 at 02:42:43PM +0200, Olivier Cochard-Labb? wrote:
> >> On Mon, Aug 13, 2012 at 1:17 PM, Luigi Rizzo <rizzo at iet.unipi.it> wrote:
> >> > I just finished a netmap-enabled version of ipfw/dummynet, which
> >> > runs in userspace and is able to process over 6 million packets per
> >> > second (Mpps) with simple rulesets, and over 2.2 Mpps through
> >> > dummynet pipes (tested on an i7-3400 connected to VALE ports;
> >> > VALE is a software switch part of netmap).
> >>
> >> Hi,
> >>
> >> Reading the README file: "Real packet I/O is possible using netmap",
> >> Can we use it for high-speed firewalling among real NICs now?
> >>
> >> Can you confirm that we just need:
> >> 1. An up-to-date FreeBSD -current (build from source synced the
> >> 2012-08-03 mininum) with netmap module loaded;
> >> 2. netmap compliant NICs (ixgbe, e1000 or re);
> >> 3. compile, configure and start ipfw-user.
> >>
> >> Can ipfw-user be directly connected to two netmap-enabled NICs in
> >> place of vale switches->netmap bridge->NIC ?
> >
> > yes to all three (though i have not tried yet as i do not have
> > access to 10G hardware now, vale ports behave exactly the same
> > as a real card).
> > Whoever feels like trying, performance numbers are welcome.
> > I'll prepare a picobsd image with all the tools shortly.
> >
> > cheers
> > luigi
> >
> >>
> >> Olivier
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