From: discuss [mailto:discuss-boun...@openvswitch.org] On Behalf Of Na Zhu Sent: Monday, July 13, 2015 3:15 AM To: b...@openvswitch.org Subject: [ovs-discuss] ovs-dpdk performance is not good
Dear all, I want to use ovs-dpdk to improve my nfv performance. But when i compare the throughput between standard ovs and ovs-dpdk, the ovs is better, does anyone know why? I use netperf to test the throughput. use vhost-net to test standard ovs. use vhost-user to test ovs-dpdk. My topology is as follow: [内嵌图片 1] The result is that standard ovs performance is better. Throughput unit Mbps. [内嵌图片 2] [内嵌图片 3] [kt] I would check your core affinitization to ensure that the vswitchd pmd is on a separate core to the vCPUs (set with other_config:pmd-cpu-mask). Also, this test is not using the DPDK vitrio PMD in the guest which provides performance gains. What packet sizes are you using? you should see a greater gain from DPDK at lower packet sizes (i.e. more PPS)
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