Here are my thoughts and comments on the topologies/test and workloads for CSIT vhost-user test scenarios. Pls refer to my comments inline below.
-----Original Message----- From: Thomas F Herbert [mailto:therb...@redhat.com] Sent: Monday, February 27, 2017 10:04 AM To: csit-...@lists.fd.io; Maciek Konstantynowicz (mkonstan) <mkons...@cisco.com> Cc: vpp-dev <vpp-dev@lists.fd.io>; Liew, Irene <irene.l...@intel.com>; Pierre Pfister (ppfister) <ppfis...@cisco.com>; Alec Hothan (ahothan) <ahot...@cisco.com>; Karl Rister <kris...@redhat.com>; Douglas Shakshober <dsh...@redhat.com>; Andrew Theurer <atheu...@redhat.com> Subject: fd.io CSIT vhost-user test scenario implementation priorities Please weigh in: We are starting to plan fd.io CSIT Vhost-user test scenario priorities for implementation in 17.04 and in 17.07 CSIT releases. Vhost-user performance is critical for VNF acceptance in potential use cases for VPP/fd.io adaption. We had previous email thread here: https://lists.fd.io/pipermail/csit-dev/2016-November/001192.html along with a TWS https://wiki.fd.io/view/TWS meetings on 12/02/16 and 12/07/16 summarized in this wiki: https://wiki.fd.io/view/CSIT/vhostuser_test_scenarios Topologies and tests Current in 17.01: 10ge2p1x520-dot1q-l2bdbasemaclrn-eth-2vhost-1vm 10ge2p1x520-dot1q-l2xcbase-eth-2vhost-1vm 10ge2p1x520-ethip4-ip4base-eth-2vhost-1vm 10ge2p1x520-ethip4vxlan-l2bdbasemaclrn-eth-2vhost-1vm 10ge2p1x520-eth-l2bdbasemaclrn-eth-2vhost-1vm 10ge2p1x520-eth-l2xcbase-eth-2vhost-1vm 10ge2p1x710-eth-l2bdbasemaclrn-eth-2vhost-1vm 40ge2p1xl710-eth-l2bdbasemaclrn-eth-2vhost-1vm single and multi-queue testing of pmd baseline Proposed in links above 1p1nic-dot1q-l2bdbase-eth-2vhost-1vm 1p1nic-ethip4vxlan-l2bdbase-eth-2vhost-1vm 1p1nic-dot1q-l2bdbase-eth-4vhost-2vm-chain 1p1nic-ethip4vxlan-l2bdbase-eth-4vhost-2vm-chain 1p1nic-dot1q-l2bdbase-eth-2vhost-1vm-chain-2nodes 1p1nic-ethip4vxlan-l2bdbase-eth-2vhost-1vm-2nodes [Irene] For the baseline testing on vhost-user, I would recommend to run core scaling from 1 core - max cores for 1 VM Phy-VM-Phy and 2 VMs PVVP. I know the current VPP v17.01 did not have the support to manually assign the vhost-user ports RXQ to specific cores to ensure load balancing across the cores. And from our experience in the lab, when I ran 3-core of work threads in 4vhost-2vm PVVP configuration, I observed the ports were unevenly distributed across 3 worker threads and VPP vNet suffered in performance scalability. If the manual RXQ assignment for vhost-user port feature will be made available in the next 17.04 or 17.07 release, I strongly propose to include the core scaling of worker threads in order to evaluate the vhost-user RXQ core assignment feature. For example, we can pick 1 test case of 2 vhost-1vm and run with configuration of 1-core, 2-core and 4-core of worker threads. We then pick 1 test case of 4vhost-2vm-chain and run with configuration of 1-core, 2 -core, 3-core, 4-core and 6-core of worker threads. Proposed topologies for OpenStack from links above: 2p1nic-dot1q-l2bdscale-<n>flows-eth-<m>vhost-<o>vm-chain 2p1nic-ethip4vxlan-l2bdscale-<n>flows-eth-<m>vhost-<o>vm-chain New scenarios Proposed: Primary Overlay vxlan and VTEP 2p1nic-ethip4vxlan-l2bdbase-eth-2vhost-1vm 2p1nic-ethip4vxlan-l2bdbase-eth-20vhost-10vm [Irene] There is a trend in the industry using IPv6 over VXLAN. Shall we include IPv6 VXLAN scenario too? MPLS over Ethernet Scaling Multiple VMs 2p1nic-dot1q-l2bdbase-eth-20vhost-10vm Workloads: VNF based on Linux relying kernel virtio driver - kernel linux bridge, kernel L3/IPv4 routing IPv4/v6 VPP vRouter [Irene] For the VNF workloads, we need to brainstorm and include real workload applications to test to provide a better understanding in performance for real NFV/SDN deployment. Yes these workloads listed above would be a good baseline number. I suggest we should start to brainstorm and discuss for other real representative workload for the Telco/datacenter deployment which we can later incorporate into CSIT. For example, some of the workloads that can be a good candidate are IPSec, Firewall, webserver SSL, etc. Did I leave out anything? ... -- *Thomas F Herbert* SDN Group Office of Technology *Red Hat* _______________________________________________ vpp-dev mailing list vpp-dev@lists.fd.io https://lists.fd.io/mailman/listinfo/vpp-dev
