Ok, thanks for the enlightenment regarding the loss of performance. One question, just to be sure. Does the kernel module contains the VALA switch code? Or do I need to compile extra code to have the switch working? Also, where can I find the documentation to use the Vala Switch?
Once again, thank you for the support. On 14 June 2014 11:15, Luigi Rizzo <ri...@iet.unipi.it> wrote: > On Fri, Jun 13, 2014 at 10:55:54AM +0100, Carlos Ferreira wrote: > > Hello Luigi (and to all) > > > > I was able to successfully compile the netmap module for OpenWRT but > > without drivers. According to the information in the README file which > > comes with the source, the drivers are not necessary but with some > "reduced > > performance". > > > > I would like to ask how much degradation should be expected. I would like > > to run some tests to see if everything is ok and if the port was > successful. > > At 10Gbit we are easily talking about a 5x loss of efficiency. > > At 1Gbit probably the gap is a bit smaller, also because a > lot of low-end device have severe bus bandwidth limitations. > > I would be interested in seeing what kind of performance you > get on your openwrt box with the following commands > > 1. just a sender on a software switch > pkt-gen -i vale0:a -f tx > > 2. sender and receiver on a software switch > pkt-gen -i vale0:a -f tx & > pkt-gen -i vale0:b -f rx & > > 3. sender and receiver on a netmap pipe > pkt-gen -i vale0:x{0 -f tx & > pkt-gen -i vale0:x}0 -f rx & > > 4. sending on a physical device (make sure something is attached > to the output port. Also this is tricky because many openwrt boxes > have a switch on the output so you need to use a unicast destination > MAC address) > > pkt-gen -i eth0 -f tx -D 00:11:22:33:44:55 > > cheers > luigi > > > > > Thank you for the help! > > > > > > > > On 12 June 2014 11:48, Carlos Ferreira <carlosmf...@gmail.com> wrote: > > > > > First of all, thank you for the quick answer! > > > > > > I will try it myself to compile just the netmap module without the > drivers > > > and report the results back to you. > > > > > > Once again, thank you! > > > > > > > > > On 12 June 2014 11:41, Luigi Rizzo <ri...@iet.unipi.it> wrote: > > > > > >> > > >> > > >> > > >> On Thu, Jun 12, 2014 at 12:35 PM, Carlos Ferreira < > carlosmf...@gmail.com> > > >> wrote: > > >> > > >>> Hello! > > >>> > > >>> First of all, to Luigi and the dev team, great piece of work that > netmap > > >>> is! This is a piece of software that I was looking for quite some > time. > > >>> Your team effort is appreciated! > > >>> > > >>> Now the question. > > >>> I know that this is a FreeBSD mailing list but I was wondering, > since you > > >>> have a PKGBUILD file for ArchLinux, could someone in your team do the > > >>> same > > >>> for OpenWRT? Netmap seems to be a piece of software which would come > in > > >>> handy, to develop applications and protocols for the OpenWRT distro. > > >>> Since OpenWRT uses uClib, I don't really know if it is possible to > > >>> compile > > >>> it. > > >>> Help is appreciated! > > >>> > > >>> > > >> ???i expect it will be trivial to compile netmap for openwrt, > > >> because it is just a piece of kernel code and the userspace > > >> has little or no dependencies. > > >> Another story is to write specific netmap extensions for the > > >> driver in use -- that might require a little bit of work > > >> though not much, knowing the driver. > > >> > > >> I am afraid we currently we do not have the time and manpower > > >> to set up a build environment and give it a try. > > >> > > >> cheers > > >> luigi > > >> > > >> > > > > > > > > > -- > > > > > > Carlos Miguel Ferreira > > > Researcher at Telecommunications Institute > > > Aveiro - Portugal > > > Work E-mail - c...@av.it.pt > > > Skype & GTalk -> carlosmf...@gmail.com > > > LinkedIn -> http://www.linkedin.com/in/carlosmferreira > > > > > > > > > > > -- > > > > Carlos Miguel Ferreira > > Researcher at Telecommunications Institute > > Aveiro - Portugal > > Work E-mail - c...@av.it.pt > > Skype & GTalk -> carlosmf...@gmail.com > > LinkedIn -> http://www.linkedin.com/in/carlosmferreira > > _______________________________________________ > > freebsd-net@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-net > > To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org" > -- Carlos Miguel Ferreira Researcher at Telecommunications Institute Aveiro - Portugal Work E-mail - c...@av.it.pt Skype & GTalk -> carlosmf...@gmail.com LinkedIn -> http://www.linkedin.com/in/carlosmferreira _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"