Hi Bhanu Prakash, With the below configuration, i am running IPSEC on the VM, which is not scaling more than 400M unidirectional traffic per VM with Intel Atom C2518@1.7Ghz.
ksoftirqd/0 process in the VM is shooting up to 95% for 400M, and it is not able to handle any more traffic. Is there anything i can do to get better performance with the quad core Atom CPU. Will assigning multiple queues in the qemu/vhost/vm help ? "For better performance (core 0 - platform logic/ core 1 - VM1 qemu thread/ core 2 - VM2 qemu thread/ core 3 - pmd thread)." Regards Kapil. On Mon, Aug 1, 2016 at 10:45 PM, Kapil Adhikesavalu <kapil20...@gmail.com> wrote: > 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
