Are you sure that you loaded your newly compiled kernel module? (insmod build_dir/datapath/linux/openvswitch.ko)
On 19 October 2016 at 09:40, Danish Sattar <danishsat...@gmail.com> wrote: > I've tried in datapath.c, bridge.c, learning-switch.c and flow-table.c but > nothing works. > For kernel module i'm using printk() to print the messages and for userspace > simply writing to a file but for some reason nothing happens in either > modules. > > Any other ideas that i can try to get the openvswitch per packet processing > time. > > Thanks > > Best Regards > Danish Sattar > > On Thu, Oct 13, 2016 at 2:24 PM, Danish Sattar <danishsat...@gmail.com> > wrote: >> >> Thanks. I will give it a shot. >> >> Best Regards >> Danish Sattar >> >> On Thu, Oct 13, 2016 at 2:15 PM, Ben Pfaff <b...@ovn.org> wrote: >>> >>> On Thu, Oct 13, 2016 at 12:27:38PM -0400, Danish Sattar wrote: >>> > I'm trying to find out the time a packet spends in the switch only. >>> > Time >>> > difference between packet in and out. >>> > >>> > I thought analyzing the time in learning-switch.c would be give me some >>> > info but that didn't work. >>> >>> Most packets don't ever go to userspace so you'll have to instrument the >>> kernel module, probably the ovs_dp_process_packet() function in >>> datapath/datapath.h. I don't know the best way to do this. >>> >>> You might be able to approximate this with the Linux "perf" tool. >> >> > > > _______________________________________________ > discuss mailing list > discuss@openvswitch.org > http://openvswitch.org/mailman/listinfo/discuss > _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
