diff options
Diffstat (limited to 'docs/testing')
3 files changed, 33 insertions, 7 deletions
diff --git a/docs/testing/developer/devguide/design/trafficgen_integration_guide.rst b/docs/testing/developer/devguide/design/trafficgen_integration_guide.rst index c88b80ed..0298a47f 100644 --- a/docs/testing/developer/devguide/design/trafficgen_integration_guide.rst +++ b/docs/testing/developer/devguide/design/trafficgen_integration_guide.rst @@ -200,12 +200,16 @@ functions: which are discussed in detail at :ref:`integration-tests` userguide. * param **traffic_type**: One of the supported traffic types, - e.g. **rfc2544_throughput**, **rfc2544_continuous** - or **rfc2544_back2back**. - * param **frame_rate**: Defines desired percentage of frame - rate used during continuous stream tests. + e.g. **rfc2544_throughput**, **rfc2544_continuous**, + **rfc2544_back2back** or **burst**. * param **bidir**: Specifies if generated traffic will be full-duplex (true) or half-duplex (false). + * param **frame_rate**: Defines desired percentage of frame + rate used during continuous stream tests. + * param **burst_size**: Defines a number of frames in the single burst, + which is sent by burst traffic type. Burst size is applied for each + direction, i.e. the total number of tx frames will be 2*burst_size + in case of bidirectional traffic. * param **multistream**: Defines number of flows simulated by traffic generator. Value 0 disables MultiStream feature. * param **stream_type**: Stream Type defines ISO OSI network layer diff --git a/docs/testing/developer/devguide/design/vswitchperf_design.rst b/docs/testing/developer/devguide/design/vswitchperf_design.rst index 96ffcf62..9317d875 100644 --- a/docs/testing/developer/devguide/design/vswitchperf_design.rst +++ b/docs/testing/developer/devguide/design/vswitchperf_design.rst @@ -291,8 +291,8 @@ Detailed description of ``TRAFFIC`` dictionary items follows: .. code-block:: console 'traffic_type' - One of the supported traffic types. - E.g. rfc2544_throughput, rfc2544_back2back - or rfc2544_continuous + E.g. rfc2544_throughput, rfc2544_back2back, + rfc2544_continuous or burst Data type: str Default value: "rfc2544_throughput". 'bidir' - Specifies if generated traffic will be full-duplex (True) @@ -304,6 +304,12 @@ Detailed description of ``TRAFFIC`` dictionary items follows: continuous stream tests. Data type: int Default value: 100. + 'burst_size' - Defines a number of frames in the single burst, which is sent + by burst traffic type. Burst size is applied for each direction, + i.e. the total number of tx frames will be 2*burst_size in case of + bidirectional traffic. + Data type: int + Default value: 100. 'multistream' - Defines number of flows simulated by traffic generator. Value 0 disables multistream feature Data type: int @@ -786,7 +792,7 @@ ITrafficGenerator connect() disconnect() - send_burst_traffic(traffic, numpkts, time, framerate) + send_burst_traffic(traffic, time) send_cont_traffic(traffic, time, framerate) start_cont_traffic(traffic, time, framerate) diff --git a/docs/testing/user/configguide/trafficgen.rst b/docs/testing/user/configguide/trafficgen.rst index 52b1b4a5..c174af0a 100644 --- a/docs/testing/user/configguide/trafficgen.rst +++ b/docs/testing/user/configguide/trafficgen.rst @@ -39,6 +39,7 @@ and is configured as follows: TRAFFIC = { 'traffic_type' : 'rfc2544_throughput', 'frame_rate' : 100, + 'burst_size' : 100, 'bidir' : 'True', # will be passed as string in title format to tgen 'multistream' : 0, 'stream_type' : 'L4', @@ -857,6 +858,21 @@ place. This can be adjusted with the following configurations: TRAFFICGEN_TREX_LEARNING_MODE=True TRAFFICGEN_TREX_LEARNING_DURATION=5 +Latency measurements have impact on T-Rex performance. Thus vswitchperf uses a separate +latency stream for each direction with limited speed. This workaround is used for RFC2544 +**Throughput** and **Continuous** traffic types. In case of **Burst** traffic type, +the latency statistics are measured for all frames in the burst. Collection of latency +statistics is driven by configuration option ``TRAFFICGEN_TREX_LATENCY_PPS`` as follows: + + * value ``0`` - disables latency measurements + * non zero integer value - enables latency measurements; In case of Throughput + and Continuous traffic types, it specifies a speed of latency specific stream + in PPS. In case of burst traffic type, it enables latency measurements for all frames. + +.. code-block:: console + + TRAFFICGEN_TREX_LATENCY_PPS = 1000 + SR-IOV and Multistream layer 2 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ T-Rex by default only accepts packets on the receive side if the destination mac matches the |