We haven't measured performance with a very large number of datapaths, because this is not a common case. Perhaps the performance is fine.
You can create more than one tunnel per datapath. I don't know why Quantum would create only one tunnel per datapath. On Tue, Aug 28, 2012 at 06:19:40PM +0800, faicker mo wrote: > Data path number affects the performance ? > Ryu, an openstack quatumn plugin, uses the gre tunnel of OVS. > The tunnel is created between any 2 hosts. The tunnel number will be N-1(N is > the host number). The number will be greater than 255 one day. > > On 2012-8-27, at 21:42, Ben Pfaff <b...@nicira.com> wrote: > > > Perhaps you should explain a little bit. Usually, only a few datapaths > > are needed. More than 255 is a surprising number. > > > > On Mon, Aug 27, 2012 at 02:21:57PM +0800, faicker mo wrote: > >> I did a test, the data path number can be greater than 255. > >> Yeah, we are estimating the project. With tunnel, it will be soon over 255. > >> > >> On 2012-8-27, at 12:16, Ben Pfaff <b...@nicira.com> wrote: > >> > >>> On Mon, Aug 27, 2012 at 11:57:23AM +0800, faicker mo wrote: > >>>> Does the OVS really have the limit of data path number 256 per machine > >>>> In OVS 1.7.0? > >>> > >>> No. > >>> > >>> Are you really approaching this number of datapaths? > >> > _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
