(re-adding the ovs-discuss list) This might be better on the dpdk dev mailing list. For the OVS part, see this thread http://openvswitch.org/pipermail/discuss/2015-July/018095.html
Kevin. From: Na Zhu [mailto:zhunat...@gmail.com] Sent: Wednesday, July 15, 2015 6:16 AM To: Traynor, Kevin Subject: Re: [ovs-discuss] ovs-dpdk performance is not good Hi Kevin, The interface MTU is 1500, the TCP message size is 16384 and the UDP message size is 65507. How to use DPDK virtio PMD? 2015-07-14 20:25 GMT+08:00 Traynor, Kevin <kevin.tray...@intel.com<mailto:kevin.tray...@intel.com>>: From: discuss [mailto:discuss-boun...@openvswitch.org<mailto:discuss-boun...@openvswitch.org>] On Behalf Of Na Zhu Sent: Monday, July 13, 2015 3:15 AM To: b...@openvswitch.org<mailto: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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