As discussed off-list: please stick to best-practice coding patterns. Single-packet frames simply cannot perform, etc.
Thanks… Dave From: vpp-dev-boun...@lists.fd.io [mailto:vpp-dev-boun...@lists.fd.io] On Behalf Of Alessio Silvestro Sent: Monday, September 25, 2017 10:13 AM To: vpp-dev@lists.fd.io Subject: [vpp-dev] Poor L3/L4 Performance Dear all, I am performing some experiments on VPP in order to get some performance metrics for specific applications. I am working on vpp v17.04.2-2. In order to have a baseline of my system, I run L2 XConnect (XC) as in [https://perso.telecom-paristech.fr/~drossi/paper/vpp-bench-techrep.pdf]. In this case, I can achieve, similarly to the paper, ~13Mpps -- which somehow confirm that the current setup is correct. I implemented 2 further experiments: 1) L3-Xconnect I implemented a new node that listens for traffic with specific ether_type with the following api: ethernet_register_input_type(vm, ETHERNET_TYPE_X, my_node.index) Once the traffic is received, the node sends the traffic directly to l2_output without any further processing. The achieved packet rate is less than 5 Mpps. 2) L4-Xconnect I implemented another node that listens for UDP traffic on a specific port with the following api: udp_register_dst_port (vm, UDP_DST_PORT_vxlan, vxlan_input_node.index, 1 /* is_ip4 */); Once the traffic is received, the node sends the traffic directly to l2_output without any further processing. The achieved packet rate is less than 4 Mpps. The testbed is composed of 2 servers. The first server is running VPP whereas the second server runs the traffic generator (packetgen). The servers are equipped with Intel NICs capable of dual-port 10 Gbps full-duplex link. Generated packets have the size of 64kb. VPP is configured to run with one main thread and one worker thread. Therefore, the previous values are meant for a single CPU-core. In my opinion those values are a bit too low compared to other state-of-the-art approaches. Do you have any idea on why this is happening and, if this is my fault, how I can fix it. Thanks, Alessio
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