diff options
Diffstat (limited to 'docs/userguide/quickstart.rst')
| -rwxr-xr-x | docs/userguide/quickstart.rst | 459 |
1 files changed, 459 insertions, 0 deletions
diff --git a/docs/userguide/quickstart.rst b/docs/userguide/quickstart.rst new file mode 100755 index 00000000..221ff698 --- /dev/null +++ b/docs/userguide/quickstart.rst @@ -0,0 +1,459 @@ +============================= +Getting Started with 'vsperf' +============================= + +General +------- + +VSPERF requires a traffic generators to run tests, automated traffic gen +support in VSPERF includes: + +- IXIA traffic generator (IxNetwork hardware) and a machine that runs the IXIA + client software. +- Spirent traffic generator (TestCenter hardware chassis or TestCenter virtual + in a VM) and a VM to run the Spirent Virtual Deployment Service image, + formerly known as "Spirent LabServer". + +If you want to use another traffic generator, please select the Dummy generator +option as shown in `Traffic generator instructions +<http://artifacts.opnfv.org/vswitchperf/docs/configguide/trafficgen.html>`__ + +VSPERF Installation +-------------------- +To see the supported Operating Systems, vSwitches and system requirements, +please follow the `installation instructions +<http://artifacts.opnfv.org/vswitchperf/docs/configguide/installation.html>`__ to +install. + +Traffic Generator Setup +----------------------- +Follow the `Traffic generator instructions +<http://artifacts.opnfv.org/vswitchperf/docs/configguide/trafficgen.html>`__ to +install and configure a suitable traffic generator. + +Cloning and building src dependencies +------------------------------------- + +In order to run VSPERF, you will need to download DPDK and OVS. You can +do this manually and build them in a preferred location, OR you could +use vswitchperf/src. The vswitchperf/src directory contains makefiles +that will allow you to clone and build the libraries that VSPERF depends +on, such as DPDK and OVS. To clone and build simply: + +.. code-block:: console + + $ cd src + $ make + +VSPERF can be used with stock OVS (without DPDK support). When build +is finished, the libraries are stored in src_vanilla directory. + +The 'make' builds all options in src: + +* Vanilla OVS +* OVS with vhost_user as the guest access method (with DPDK support) +* OVS with vhost_cuse s the guest access method (with DPDK support) + +The vhost_user build will reside in src/ovs/ +The vhost_cuse build will reside in vswitchperf/src_cuse +The Vanilla OVS build will reside in vswitchperf/src_vanilla + +To delete a src subdirectory and its contents to allow you to re-clone simply +use: + +.. code-block:: console + + $ make clobber + +Configure the ``./conf/10_custom.conf`` file +-------------------------------------------- +The ``10_custom.conf`` file is the configuration file that overrides +default configurations in all the other configuration files in ``./conf`` +The supplied ``10_custom.conf`` file **MUST** be modified, as it contains +configuration items for which there are no reasonable default values. + +The configuration items that can be added is not limited to the initial +contents. Any configuration item mentioned in any .conf file in +``./conf`` directory can be added and that item will be overridden by +the custom configuration value. + +Using a custom settings file +---------------------------- + +If your ``10_custom.conf`` doesn't reside in the ``./conf`` directory +of if you want to use an alternative configuration file, the file can +be passed to ``vsperf`` via the ``--conf-file`` argument. + +.. code-block:: console + + $ ./vsperf --conf-file <path_to_custom_conf> ... + +Note that configuration passed in via the environment (``--load-env``) +or via another command line argument will override both the default and +your custom configuration files. This "priority hierarchy" can be +described like so (1 = max priority): + +1. Command line arguments +2. Environment variables +3. Configuration file(s) + +vloop_vnf +--------- +vsperf uses a VM called vloop_vnf for looping traffic in the PVP and PVVP +deployment scenarios. The image can be downloaded from +`<http://artifacts.opnfv.org/>`__. + +.. code-block:: console + + $ wget http://artifacts.opnfv.org/vswitchperf/vloop-vnf-ubuntu-14.04_20151216.qcow2 + +vloop_vnf forwards traffic through a VM using one of: +* DPDK testpmd +* Linux Bridge +* l2fwd kernel Module. + +Alternatively you can use your own QEMU image. + +l2fwd Kernel Module +------------------- +A Kernel Module that provides OSI Layer 2 Ipv4 termination or forwarding with +support for Destination Network Address Translation (DNAT) for both the MAC and +IP addresses. l2fwd can be found in <vswitchperf_dir>/src/l2fwd + +Executing tests +--------------- + +Before running any tests make sure you have root permissions by adding +the following line to /etc/sudoers: + +.. code-block:: console + + username ALL=(ALL) NOPASSWD: ALL + +username in the example above should be replaced with a real username. + +To list the available tests: + +.. code-block:: console + + $ ./vsperf --list + +To run a single test: + +.. code-block:: console + + $ ./vsperf $TESTNAME + +Where $TESTNAME is the name of the vsperf test you would like to run. + +To run a group of tests, for example all tests with a name containing +'RFC2544': + +.. code-block:: console + + $ ./vsperf --conf-file=<path_to_custom_conf>/10_custom.conf --tests="RFC2544" + +To run all tests: + +.. code-block:: console + + $ ./vsperf --conf-file=<path_to_custom_conf>/10_custom.conf + +Some tests allow for configurable parameters, including test duration +(in seconds) as well as packet sizes (in bytes). + +.. code:: bash + + $ ./vsperf --conf-file user_settings.py + --tests RFC2544Tput + --test-param "duration=10;pkt_sizes=128" + +For all available options, check out the help dialog: + +.. code-block:: console + + $ ./vsperf --help + +Executing Vanilla OVS tests +---------------------------- + +1. If needed, recompile src for all OVS variants + +.. code-block:: console + + $ cd src + $ make distclean + $ make + +2. Update your ''10_custom.conf'' file to use the appropriate variables +for Vanilla OVS: + +.. code-block:: console + + VSWITCH = 'OvsVanilla' + VSWITCH_VANILLA_PHY_PORT_NAMES = ['$PORT1', '$PORT1'] + +Where $PORT1 and $PORT2 are the Linux interfaces you'd like to bind +to the vswitch. + +3. Run test: + +.. code-block:: console + + $ ./vsperf --conf-file=<path_to_custom_conf> + +Please note if you don't want to configure Vanilla OVS through the +configuration file, you can pass it as a CLI argument; BUT you must +set the ports. + +.. code-block:: console + + $ ./vsperf --vswitch OvsVanilla + + +Executing PVP and PVVP tests +---------------------------- +To run tests using vhost-user as guest access method: + +1. Set VHOST_METHOD and VNF of your settings file to: + +.. code-block:: console + + VHOST_METHOD='user' + VNF = 'QemuDpdkVhost' + +2. If needed, recompile src for all OVS variants + +.. code-block:: console + + $ cd src + $ make distclean + $ make + +3. Run test: + +.. code-block:: console + + $ ./vsperf --conf-file=<path_to_custom_conf>/10_custom.conf + +To run tests using vhost-cuse as guest access method: + +1. Set VHOST_METHOD and VNF of your settings file to: + +.. code-block:: console + + VHOST_METHOD='cuse' + VNF = 'QemuDpdkVhostCuse' + +2. If needed, recompile src for all OVS variants + +.. code-block:: console + + $ cd src + $ make distclean + $ make + +3. Run test: + +.. code-block:: console + + $ ./vsperf --conf-file=<path_to_custom_conf>/10_custom.conf + +Executing PVP tests using Vanilla OVS +------------------------------------- +To run tests using Vanilla OVS: + +1. Set the following variables: + +.. code-block:: console + + VSWITCH = 'OvsVanilla' + VNF = 'QemuVirtioNet' + + VANILLA_TGEN_PORT1_IP = n.n.n.n + VANILLA_TGEN_PORT1_MAC = nn:nn:nn:nn:nn:nn + + VANILLA_TGEN_PORT2_IP = n.n.n.n + VANILLA_TGEN_PORT2_MAC = nn:nn:nn:nn:nn:nn + + VANILLA_BRIDGE_IP = n.n.n.n + + or use --test-param + + $ ./vsperf --conf-file=<path_to_custom_conf>/10_custom.conf + --test-param "vanilla_tgen_tx_ip=n.n.n.n; + vanilla_tgen_tx_mac=nn:nn:nn:nn:nn:nn" + + +2. If needed, recompile src for all OVS variants + +.. code-block:: console + + $ cd src + $ make distclean + $ make + +3. Run test: + +.. code-block:: console + + $ ./vsperf --conf-file<path_to_custom_conf>/10_custom.conf + +Selection of loopback application for PVP and PVVP tests +-------------------------------------------------------- +To select loopback application, which will perform traffic forwarding +inside VM, following configuration parameter should be configured: + +.. code-block:: console + + GUEST_LOOPBACK = ['testpmd', 'testpmd'] + +or use --test-param + +.. code-block:: console + + $ ./vsperf --conf-file=<path_to_custom_conf>/10_custom.conf + --test-param "guest_loopback=testpmd" + +Supported loopback applications are: + +.. code-block:: console + + 'testpmd' - testpmd from dpdk will be built and used + 'l2fwd' - l2fwd module provided by Huawei will be built and used + 'linux_bridge' - linux bridge will be configured + 'buildin' - nothing will be configured by vsperf; VM image must + ensure traffic forwarding between its interfaces + +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. + +Executing Packet Forwarding tests +----------------------------------- + +To select application, which will perform packet forwarding, +following configuration parameter should be configured: + + .. code-block:: console + + VSWITCH = 'none' + PKTFWD = 'TestPMD' + + or use --vswitch and --fwdapp + + $ ./vsperf --conf-file user_settings.py + --vswitch none + --fwdapp TestPMD + +Supported Packet Forwarding applications are: + + .. code-block:: console + + 'testpmd' - testpmd from dpdk + + +1. Update your ''10_custom.conf'' file to use the appropriate variables +for selected Packet Forwarder: + .. code-block:: console + + # testpmd configuration + TESTPMD_ARGS = [] + # packet forwarding mode: io|mac|mac_retry|macswap|flowgen|rxonly|txonly|csum|icmpecho + TESTPMD_FWD_MODE = 'csum' + # checksum calculation layer: ip|udp|tcp|sctp|outer-ip + TESTPMD_CSUM_LAYER = 'ip' + # checksum calculation place: hw (hardware) | sw (software) + TESTPMD_CSUM_CALC = 'sw' + # recognize tunnel headers: on|off + TESTPMD_CSUM_PARSE_TUNNEL = 'off' + +2. Run test: + + .. code-block:: console + + $ ./vsperf --conf-file <path_to_settings_py> + +VSPERF modes of operation +------------------------- +VSPERF can be run in different modes. By default it will configure vSwitch, +traffic generator and VNF. However it can be used just for configuration +and execution of traffic generator. Another option is execution of all +components except traffic generator itself. + +Mode of operation is driven by configuration parameter -m or --mode + +.. code-block:: console + + -m MODE, --mode MODE vsperf mode of operation; + Values: + "normal" - execute vSwitch, VNF and traffic generator + "trafficgen" - execute only traffic generator + "trafficgen-off" - execute vSwitch and VNF + +In case, that VSPERF is executed in "trafficgen" mode, then configuration +of traffic generator should be configured through --test-param option. +Supported CLI options useful for traffic generator configuration are: + +.. code-block:: console + + 'traffic_type' - One of the supported traffic types. E.g. rfc2544, + back2back or continuous + Default value is "rfc2544". + 'bidirectional' - Specifies if generated traffic will be full-duplex (true) + or half-duplex (false) + Default value is "false". + 'iload' - Defines desired percentage of frame rate used during + continuous stream tests. + Default value is 100. + 'multistream' - Defines number of flows simulated by traffic generator. + Value 0 disables MultiStream feature + Default value is 0. + 'stream_type' - Stream Type is an extension of the "MultiStream" feature. + If MultiStream is disabled, then Stream Type will be + ignored. Stream Type defines ISO OSI network layer used + for simulation of multiple streams. + Default value is "L4". + +Example of execution of VSPERF in "trafficgen" mode: + +.. code-block:: console + + $ ./vsperf -m trafficgen --trafficgen IxNet --conf-file vsperf.conf + --test-params "traffic_type=continuous;bidirectional=True;iload=60" + +Code change verification by pylint +---------------------------------- +Every developer participating in VSPERF project should run +pylint before his python code is submitted for review. Project +specific configuration for pylint is available at 'pylint.rc'. + +Example of manual pylint invocation: + +.. code-block:: console + + $ pylint --rcfile ./pylintrc ./vsperf + +GOTCHAs: +-------- + +OVS with DPDK and QEMU +~~~~~~~~~~~~~~~~~~~~~~~ +If you encounter the following error: "before (last 100 chars): +'-path=/dev/hugepages,share=on: unable to map backing store for +hugepages: Cannot allocate memory\r\n\r\n" with the PVP or PVVP +deployment scenario, check the amount of hugepages on your system: + +.. code-block:: console + + $ cat /proc/meminfo | grep HugePages + + +By default the vswitchd is launched with 1Gb of memory, to change +this, modify --socket-mem parameter in conf/02_vswitch.conf to allocate +an appropriate amount of memory: + +.. code-block:: console + + VSWITCHD_DPDK_ARGS = ['-c', '0x4', '-n', '4', '--socket-mem 1024,0'] + |