diff options
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/configguide/trafficgen.rst | 45 | ||||
| -rwxr-xr-x | docs/userguide/testusage.rst | 58 |
2 files changed, 103 insertions, 0 deletions
diff --git a/docs/configguide/trafficgen.rst b/docs/configguide/trafficgen.rst index f612569f..63560b9c 100644 --- a/docs/configguide/trafficgen.rst +++ b/docs/configguide/trafficgen.rst @@ -15,6 +15,7 @@ VSPERF supports the following traffic generators: * IXIA (IxNet and IxOS) * Spirent TestCenter * Xena Networks + * MoonGen To see the list of traffic gens from the cli: @@ -253,6 +254,8 @@ folder. Contact Xena Networks for the latest version of this file. The user can also visit www.xenanetworks/downloads to obtain the file with a valid support contract. +**Note** VSPerf has been fully tested with version v2.43 of Xena2544.exe + To execute the Xena2544.exe file under Linux distributions the mono-complete package must be installed. To install this package follow the instructions below. Further information can be obtained from @@ -287,3 +290,45 @@ set to allow for proper connections to the chassis. TRAFFICGEN_XENA_PASSWORD = '' TRAFFICGEN_XENA_MODULE1 = '' TRAFFICGEN_XENA_MODULE2 = '' + + +MoonGen +------- + +Installation +~~~~~~~~~~~~ + +MoonGen architecture overview and general installation instructions +can be found here: + +https://github.com/emmericp/MoonGen + +For VSPerf use, MoonGen should be cloned from here (as opposed to the afore +mentioned GitHub): + +git clone https://github.com/atheurer/MoonGen + +and use the opnfv-stable branch: + +git checkout opnfv-stable + +VSPerf uses a particular example script under the examples directory within +the MoonGen project: + +MoonGen/examples/opnfv-vsperf.lua + +Follow MoonGen set up instructions here: + +https://github.com/atheurer/MoonGen/blob/opnfv-stable/MoonGenSetUp.html + +Note one will need to set up ssh login to not use passwords between the server +running MoonGen and the device under test (running the VSPERF test +infrastructure). This is because VSPERF on one server uses 'ssh' to +configure and run MoonGen upon the other server. + +One can set up this ssh access by doing the following on both servers: + +.. code-block:: console + + ssh-keygen -b 2048 -t rsa + ssh-copy-id <other server> diff --git a/docs/userguide/testusage.rst b/docs/userguide/testusage.rst index 104723e3..d807590d 100755 --- a/docs/userguide/testusage.rst +++ b/docs/userguide/testusage.rst @@ -437,6 +437,64 @@ Guest loopback application must be configured, otherwise traffic will not be forwarded by VM and testcases with PVP and PVVP deployments will fail. Guest loopback application is set to 'testpmd' by default. +Multi-Queue Configuration +^^^^^^^^^^^^^^^^^^^^^^^^^ + +VSPerf currently supports multi-queue with the following limitations: + + 1. Execution of pvp/pvvp tests require testpmd as the loopback if multi-queue + is enabled at the guest. + + 2. Requires QemuDpdkVhostUser as the vnf. + + 3. Requires switch to be set to OvsDpdkVhost. + + 4. Requires QEMU 2.5 or greater and any OVS version higher than 2.5. The + default upstream package versions installed by VSPerf satisfy this + requirement. + +To enable multi-queue modify the ''02_vswitch.conf'' file to enable multi-queue +on the switch. + + .. code-block:: console + + VSWITCH_MULTI_QUEUES = 2 + +**NOTE:** you should consider using the switch affinity to set a pmd cpu mask +that can optimize your performance. Consider the numa of the NIC in use if this +applies by checking /sys/class/net/<eth_name>/device/numa_node and setting an +appropriate mask to create PMD threads on the same numa node. + +When multi-queue is enabled, each dpdk or dpdkvhostuser port that is created +on the switch will set the option for multiple queues. + +To enable multi-queue on the guest modify the ''04_vnf.conf'' file. + + .. code-block:: console + + GUEST_NIC_QUEUES = 2 + +Enabling multi-queue at the guest will add multiple queues to each NIC port when +qemu launches the guest. + +Testpmd should be configured to take advantage of multi-queue on the guest. This +can be done by modifying the ''04_vnf.conf'' file. + + .. code-block:: console + + GUEST_TESTPMD_CPU_MASK = '-l 0,1,2,3,4' + + GUEST_TESTPMD_NB_CORES = 4 + GUEST_TESTPMD_TXQ = 2 + GUEST_TESTPMD_RXQ = 2 + +**NOTE:** The guest SMP cores must be configured to allow for testpmd to use the +optimal number of cores to take advantage of the multiple guest queues. + +**NOTE:** For optimal performance guest SMPs should be on the same numa as the +NIC in use if possible/applicable. Testpmd should be assigned at least +(nb_cores +1) total cores with the cpu mask. + Executing Packet Forwarding tests ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |