Hi Bhanu Prakash, Thanks for the info. Will there be any performance benefit in allocating a core for dpdk control threads using dpdk-lcore-mask ? when i have more cores.
Regards, kapil. On Mon, Aug 1, 2016 at 10:28 PM, Bodireddy, Bhanuprakash < bhanuprakash.bodire...@intel.com> wrote: > >-----Original Message----- > >From: discuss [mailto:discuss-boun...@openvswitch.org] On Behalf Of Kapil > >Adhikesavalu > >Sent: Monday, August 1, 2016 5:13 PM > >To: discuss@openvswitch.org > >Subject: [ovs-discuss] Minimum number of processor cores needed to run > >OVS+DPDK in a kvm - HOST OS + VM environment > > > >Hello, > > > >What will be minimum number of processor cores needed to run OVS+DPDK > >in a kvm - HOST OS + VM environment? > > > >core 1: Host OS > >core 2: VM > >core 3: PMD - for NIC dpdk + vhost ports - default it picks 1 core i > believe. > Yes, If pmd-cpu-mask not specified, the pmd thread defaults to core 0. > In case you want to explicitly pin pmd thread to core 3, pass > pmd-cpu-mask=4. For more information check ovs-vswitchd.conf.db man pages. > > >core 4: DPDK lcore - dpdk-lcore-mask > You don't have to explicitly pin dpdk control threads in this case. > > > > >i have only a 4 core CPU, so i am just looking if i can run 2 VM's > instead of 1 as > >in above. > You should be able to run 2 VMs on 4 core CPU. > For better performance (core 0 - platform logic/ core 1 - VM1 qemu thread/ > core 2 - VM2 qemu thread/ core 3 - pmd thread). > > Regards, > Bhanu Prakash. > >
_______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
