Table of Contents
Introduction
The R3 release will evaluation the throughput and packet forwarding performance of the Mellanox BlueField SmartNIC card.
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our own offload code which enables the full hardware offload with DPDK rte_flow APIs.
We have plans to open-source this OVS-DPDK. More detailed details will be provided in the future documentation.
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Akraino Test Group Information
Overall Test Architecture
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The Jenkins will use ansible plugin to download BF drivers and FS image in the test server and setup the environment
according to the ansible-playbook.
| Image | download link |
|---|---|
| BlueField-2.5.1.11213.tar.xz | https://www.mellanox.com/products/software/bluefield |
| core-image-full-dev-BlueField-2.5.1.11213.2.5.3.tar.xz | https://www.mellanox.com/products/software/bluefield |
| mft-4.14.0-105-x86_64-deb.tgz | |
| MLNX_OFED_LINUX-5.0-2.1.8.0-debian8.11-x86_64.tgz |
Test Bed
The testbed setup is shown in the above diagram. DUT stands for Device Under Test
Test Framework
The software used and the OVS-DPDK setup is shown below.
| Type | Description |
|---|---|
| SmartNICs | BlueField v1, 25Gbps |
| DPDK | version 19.11 |
| vSwitch | OVS-DPDK 2.12 with VXLAN DECAP/ENCAP offload enabled. |
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| Code Block |
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root@bluefield:/home/ovs-dpdk# ovs-vsctl show
2dccd148-526c-44a5-9351-67b04c5e2da4
Bridge br-int
datapath_type: netdev
Port vxlan-vtp
Interface vxlan-vtp
type: vxlan
options: {dst_port="4789", key=flow, local_ip="192.168.1.1", remote_ip=flow, tos=inherit}
Port br-int
Interface br-int
type: internal
Port pf1hpf
Interface pf1hpf
type: dpdk
options: {dpdk-devargs="class=eth,mac=ae:d8:8a:c5:22:fb"}
Bridge br-ex
datapath_type: netdev
Port br-ex
Interface br-ex
type: internal
Port p1
Interface p1
type: dpdk
options: {dpdk-devargs="class=eth,mac=98:03:9b:af:7b:0b"} |
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| Code Block |
|---|
root@bluefield:/home/ovs-dpdk# ovs-vsctl list open_vswitch
_uuid : 2dccd148-526c-44a5-9351-67b04c5e2da4
bridges : [22334686-733a-445e-9130-a42009a3586e, 38af610d-01f7-497d-878b-c6b6a44abf6a]
cur_cfg : 10
datapath_types : [netdev, system]
datapaths : {}
db_version : []
dpdk_initialized : true
dpdk_version : "DPDK 19.11.0"
external_ids : {}
iface_types : [dpdk, dpdkr, dpdkvhostuser, dpdkvhostuserclient, erspan, geneve, gre, internal, ip6erspan, ip6gre, lisp, patch, stt, system, tap, vxlan]
manager_options : []
next_cfg : 10
other_config : {dpdk-extra="-w 03:00.1,representor=[0,65535] --legacy-mem ", dpdk-init="true", hw-offload="true"}
ovs_version : []
ssl : []
statistics : {cpu="16", file_systems="/,13521220,3918464 /data,243823,2064 /boot,357176,61104", load_average="1.41,1.37,1.36", memory="16337652,5589928,1707640,0,0", process_ovs-vswitchd="5959388,256352,11515170,0,11484792,11484792,7", process_ovsdb-server="12620,6260,13190,0,68233832,68233832,6"}
system_type : []
system_version : [] |
Traffic Generator
We will use DPDK pktgen as the Traffic Generator.
Test
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API description
The test is to evaluate the performance of SmartNIC offloading.
Thus we currently don't have any Test APIs provided.
Test Dashboards
Functional Tests
Open vSwitch itself contains a test suite for functional test, the link is http://docs.openvswitch.org/en/latest/topics/testing/
We have run the basic test suite according to the link.
By running,
| Code Block | ||
|---|---|---|
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make check TESTSUITEFLAGS=-j8 |
We got the below results.
Total Tests | Test Executed | Pass | Fail | In Progress |
|---|---|---|---|---|
| 2225 | 2200 | 2198 | 2 | 0 |
The two failed cases are about sFlow sampling. We are investigating the internal reason.
25 cases are skipped due to the configuration.
Performance Tests
Single PF
| OVS-DPDK | OF rules | Traffic | pktgen pps | received pps (hw) | received pps (no hw) | PMD idle cycles w/ hw offload | PMD idle cycles w/o hw offload |
|---|---|---|---|---|---|---|---|
| 1 PMD(s) | Directly forwarding without the match "in_port=vxlan-vtp, actions=output: pf1hpf" | single TCP flow with VXLAN encapsulation | 24.6Mpps | 23.9Mpps | 745156 | 99% | 0% |
Single PF, Single VF
| OVS-DPDK | OF rules | Traffic | pktgen pps | received pps (hw) | received pps (no hw) | PMD idle cycles w/ hw offload | PMD idle cycles w/o hw offload |
|---|---|---|---|---|---|---|---|
| 1 PMD(s) | Directly forwarding without the match "in_port=vxlan-vtp, actions=output: pf1vf0" | single TCP flow with VXLAN encapsulation | 24.6Mpps | 23.8Mpps | 747097 | 99% | 0% |
| 1 PMD(s) | match and forwarding 100 rules "in_port=vxlan-vtp,ip,nw_dst=10.1.1. |
[1-100] actions=pf1vf0" | 100 flows with nw_dst=10.1.1.[1-100] | 24.6Mpps | 21.6Mpps ( |
100 megaflows offloaded) | 624161 | 99% | 0% | |
| 1 PMD(s) | match and forwarding 1000 rules "in_port=vxlan-vtp,ip,nw_dst=10.1.[1-10].[1-100] actions=pf1vf0" | 1000 flows with nw_dst=10.1.[1-10].[1-100] 891 flows (due to pktgen limit, only 891 flows are loaded) | 24.6Mpps | 23.3Mpps ( |
891 megaflows offloaded) | 524144 | 99% | 0% |
Single PF, 4 VFs (only test with offloaded)
| OVS-DPDK | OF rules | Traffic | pktgen pps | received pps (VF0) | received pps (VF1) | received pps (VF2) | received pps (VF3) | in total |
|---|---|---|---|---|---|---|---|---|
| 1 PMD(s) | match and forwarding 1000 rules "in_port=vxlan-vtp,ip,nw_dst=10.1.[1-10].[1-25] actions=pf1vf0" "in_port=vxlan-vtp,ip,nw_dst=10.1.[1-10].[26-50] actions=pf1vf1" "in_port=vxlan-vtp,ip,nw_dst=10.1.[1-10].[51-75] actions=pf1vf2" "in_port=vxlan-vtp,ip,nw_dst=10.1.[1-10].[75-100] actions=pf1vf3" | 1000 flows with nw_dst=10.1.[1-10].[1-100] 891 flows (due to pktgen limit, only 891 flows are loaded) | 24.6Mpps | 5891903 | 5781310 | 5767825 | 5380159 | 23258808 ~ 23.2Mpps |
Additional Testing
n/a
Bottlenecks/Errata
n/a