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-rwxr-xr-xconf/01_testcases.conf12
-rw-r--r--conf/03_traffic.conf11
-rw-r--r--conf/integration/01_testcases.conf5
-rw-r--r--core/traffic_controller_rfc2544.py3
-rw-r--r--docs/testing/developer/devguide/design/trafficgen_integration_guide.rst12
-rw-r--r--docs/testing/developer/devguide/design/vswitchperf_design.rst12
-rw-r--r--docs/testing/user/configguide/trafficgen.rst16
-rwxr-xr-xtools/pkt_gen/dummy/dummy.py19
-rwxr-xr-xtools/pkt_gen/ixia/ixia.py4
-rwxr-xr-xtools/pkt_gen/ixnet/ixnet.py2
-rw-r--r--tools/pkt_gen/moongen/moongen.py5
-rw-r--r--tools/pkt_gen/testcenter/testcenter.py2
-rwxr-xr-xtools/pkt_gen/trafficgen/trafficgen.py5
-rw-r--r--tools/pkt_gen/trex/trex.py113
-rwxr-xr-xtools/pkt_gen/xena/xena.py4
15 files changed, 162 insertions, 63 deletions
diff --git a/conf/01_testcases.conf b/conf/01_testcases.conf
index bd5ba9eb..03cf78d2 100755
--- a/conf/01_testcases.conf
+++ b/conf/01_testcases.conf
@@ -244,6 +244,18 @@ PERFORMANCE_TESTS = [
},
},
{
+ "Name": "phy2phy_burst",
+ "Deployment": "p2p",
+ "Description": "Phy2Phy single burst of 1000 frames at 100% frame rate",
+ "Parameters" : {
+ "TRAFFIC" : {
+ "traffic_type" : "burst",
+ "frame_rate" : 100,
+ "burst_size" : 1000,
+ },
+ },
+ },
+ {
"Name": "pvp_cont",
"Deployment": "pvp",
"Description": "PVP Continuous Stream",
diff --git a/conf/03_traffic.conf b/conf/03_traffic.conf
index 8aff2e35..288278f9 100644
--- a/conf/03_traffic.conf
+++ b/conf/03_traffic.conf
@@ -23,8 +23,8 @@ LOG_FILE_TRAFFIC_GEN = 'traffic-gen.log'
# Detailed description of TRAFFIC dictionary items follows:
#
# '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)
@@ -36,6 +36,12 @@ LOG_FILE_TRAFFIC_GEN = 'traffic-gen.log'
# 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
@@ -174,6 +180,7 @@ LOG_FILE_TRAFFIC_GEN = 'traffic-gen.log'
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',
diff --git a/conf/integration/01_testcases.conf b/conf/integration/01_testcases.conf
index bb2809b8..8c013d2a 100644
--- a/conf/integration/01_testcases.conf
+++ b/conf/integration/01_testcases.conf
@@ -1129,10 +1129,11 @@ INTEGRATION_TESTS += [
"vSwitch" : "OvsDpdkVhost", # works also for Vanilla OVS
"Parameters" : {
"TRAFFICGEN" : "Trex",
- "TRAFFICGEN_DURATION" : 5,
+ "TRAFFICGEN_TREX_LEARNING_MODE" : True,
"TRAFFIC" : {
- "traffic_type" : "rfc2544_continuous",
+ "traffic_type" : "burst",
"frame_rate" : 100,
+ "burst_size" : 5,
# enable capture of five RX frames
'capture': {
'enabled': True,
diff --git a/core/traffic_controller_rfc2544.py b/core/traffic_controller_rfc2544.py
index cb921970..2bb30fec 100644
--- a/core/traffic_controller_rfc2544.py
+++ b/core/traffic_controller_rfc2544.py
@@ -62,6 +62,9 @@ class TrafficControllerRFC2544(TrafficController, IResults):
elif traffic['traffic_type'] == 'rfc2544_continuous':
result = self._traffic_gen_class.send_cont_traffic(
traffic, duration=self._duration)
+ elif traffic['traffic_type'] == 'burst':
+ result = self._traffic_gen_class.send_burst_traffic(
+ traffic, duration=self._duration)
elif traffic['traffic_type'] == 'rfc2544_throughput':
result = self._traffic_gen_class.send_rfc2544_throughput(
traffic, tests=self._tests, duration=self._duration, lossrate=self._lossrate)
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
diff --git a/tools/pkt_gen/dummy/dummy.py b/tools/pkt_gen/dummy/dummy.py
index b0558b6e..ef4b37d9 100755
--- a/tools/pkt_gen/dummy/dummy.py
+++ b/tools/pkt_gen/dummy/dummy.py
@@ -25,6 +25,7 @@ own.
import json
+from collections import OrderedDict
from conf import settings
from conf import merge_spec
from tools.pkt_gen import trafficgen
@@ -108,41 +109,41 @@ class Dummy(trafficgen.ITrafficGenerator):
"""
pass
- def send_burst_traffic(self, traffic=None, numpkts=100, duration=20):
+ def send_burst_traffic(self, traffic=None, duration=20):
"""
Send a burst of traffic.
"""
traffic_ = self.traffic_defaults.copy()
- result = {}
+ result = OrderedDict()
if traffic:
traffic_ = merge_spec(traffic_, traffic)
results = get_user_traffic(
'burst',
- '%dpkts, %dmS' % (numpkts, duration),
+ '%dpkts, %dmS' % (traffic['burst_size'], duration),
traffic_,
('frames rx', 'payload errors', 'sequence errors'))
# builds results by using user-supplied values where possible
# and guessing remainder using available info
- result[ResultsConstants.TX_FRAMES] = numpkts
+ result[ResultsConstants.TX_FRAMES] = traffic['burst_size']
result[ResultsConstants.RX_FRAMES] = results[0]
result[ResultsConstants.TX_BYTES] = traffic_['l2']['framesize'] \
- * numpkts
+ * traffic['burst_size']
result[ResultsConstants.RX_BYTES] = traffic_['l2']['framesize'] \
* results[0]
result[ResultsConstants.PAYLOAD_ERR] = results[1]
result[ResultsConstants.SEQ_ERR] = results[2]
- return results
+ return result
def send_cont_traffic(self, traffic=None, duration=30):
"""
Send a continuous flow of traffic.
"""
traffic_ = self.traffic_defaults.copy()
- result = {}
+ result = OrderedDict()
if traffic:
traffic_ = merge_spec(traffic_, traffic)
@@ -179,7 +180,7 @@ class Dummy(trafficgen.ITrafficGenerator):
Send traffic per RFC2544 throughput test specifications.
"""
traffic_ = self.traffic_defaults.copy()
- result = {}
+ result = OrderedDict()
if traffic:
traffic_ = merge_spec(traffic_, traffic)
@@ -216,7 +217,7 @@ class Dummy(trafficgen.ITrafficGenerator):
Send traffic per RFC2544 back2back test specifications.
"""
traffic_ = self.traffic_defaults.copy()
- result = {}
+ result = OrderedDict()
if traffic:
traffic_ = merge_spec(traffic_, traffic)
diff --git a/tools/pkt_gen/ixia/ixia.py b/tools/pkt_gen/ixia/ixia.py
index ffb1f5e3..1982663c 100755
--- a/tools/pkt_gen/ixia/ixia.py
+++ b/tools/pkt_gen/ixia/ixia.py
@@ -242,11 +242,11 @@ class Ixia(trafficgen.ITrafficGenerator):
return result
- def send_burst_traffic(self, traffic=None, numpkts=100, duration=20):
+ def send_burst_traffic(self, traffic=None, duration=20):
"""See ITrafficGenerator for description
"""
flow = {
- 'numpkts': numpkts,
+ 'numpkts': traffic['burst_size'],
'duration': duration,
'type': 'stopStream',
'framerate': traffic['frame_rate'],
diff --git a/tools/pkt_gen/ixnet/ixnet.py b/tools/pkt_gen/ixnet/ixnet.py
index e2223e14..87fb2c65 100755
--- a/tools/pkt_gen/ixnet/ixnet.py
+++ b/tools/pkt_gen/ixnet/ixnet.py
@@ -528,7 +528,7 @@ class IxNet(trafficgen.ITrafficGenerator):
return parse_ixnet_rfc_results(parse_result_string(output[0]))
- def send_burst_traffic(self, traffic=None, numpkts=100, duration=20):
+ def send_burst_traffic(self, traffic=None, duration=20):
return NotImplementedError('IxNet does not implement send_burst_traffic')
if __name__ == '__main__':
diff --git a/tools/pkt_gen/moongen/moongen.py b/tools/pkt_gen/moongen/moongen.py
index 2ac2ec31..b7d55c4d 100644
--- a/tools/pkt_gen/moongen/moongen.py
+++ b/tools/pkt_gen/moongen/moongen.py
@@ -240,14 +240,13 @@ class Moongen(ITrafficGenerator):
"""
self._logger.info("MOONGEN: In moongen disconnect method")
- def send_burst_traffic(self, traffic=None, numpkts=100, duration=20):
+ def send_burst_traffic(self, traffic=None, duration=20):
"""Send a burst of traffic.
- Send a ``numpkts`` packets of traffic, using ``traffic``
+ Send a ``traffic['burst_traffic']`` packets of traffic, using ``traffic``
configuration, with a timeout of ``time``.
:param traffic: Detailed "traffic" spec, i.e. IP address, VLAN tags
- :param numpkts: Number of packets to send
:param duration: Time to wait to receive packets
:returns: dictionary of strings with following data:
diff --git a/tools/pkt_gen/testcenter/testcenter.py b/tools/pkt_gen/testcenter/testcenter.py
index ec2a14bd..487566bf 100644
--- a/tools/pkt_gen/testcenter/testcenter.py
+++ b/tools/pkt_gen/testcenter/testcenter.py
@@ -182,7 +182,7 @@ class TestCenter(trafficgen.ITrafficGenerator):
"""
pass
- def send_burst_traffic(self, traffic=None, numpkts=100, duration=20):
+ def send_burst_traffic(self, traffic=None, duration=20):
"""
Do nothing.
"""
diff --git a/tools/pkt_gen/trafficgen/trafficgen.py b/tools/pkt_gen/trafficgen/trafficgen.py
index 262df71d..a6f7edcc 100755
--- a/tools/pkt_gen/trafficgen/trafficgen.py
+++ b/tools/pkt_gen/trafficgen/trafficgen.py
@@ -81,15 +81,14 @@ class ITrafficGenerator(object):
"""
raise NotImplementedError('Please call an implementation.')
- def send_burst_traffic(self, traffic=None, numpkts=100, duration=20):
+ def send_burst_traffic(self, traffic=None, duration=20):
"""Send a burst of traffic.
- Send a ``numpkts`` packets of traffic, using ``traffic``
+ Send a ``traffic['burst_size']`` packets of traffic, using ``traffic``
configuration, for ``duration`` seconds.
Attributes:
:param traffic: Detailed "traffic" spec, see design docs for details
- :param numpkts: Number of packets to send
:param duration: Time to wait to receive packets
:returns: dictionary of strings with following data:
diff --git a/tools/pkt_gen/trex/trex.py b/tools/pkt_gen/trex/trex.py
index e0ce4c48..d3a7ea89 100644
--- a/tools/pkt_gen/trex/trex.py
+++ b/tools/pkt_gen/trex/trex.py
@@ -248,22 +248,48 @@ class Trex(ITrafficGenerator):
pkt_a = STLPktBuilder(pkt=base_pkt_a / payload_a)
pkt_b = STLPktBuilder(pkt=base_pkt_b / payload_b)
- stream_1 = STLStream(packet=pkt_a,
- name='stream_1',
- mode=STLTXCont(percentage=traffic['frame_rate']))
- stream_2 = STLStream(packet=pkt_b,
- name='stream_2',
- mode=STLTXCont(percentage=traffic['frame_rate']))
lat_pps = settings.getValue('TRAFFICGEN_TREX_LATENCY_PPS')
- if lat_pps > 0:
- stream_1_lat = STLStream(packet=pkt_a,
+ if traffic['traffic_type'] == 'burst':
+ if lat_pps > 0:
+ # latency statistics are requested; in case of frame burst we can enable
+ # statistics for all frames
+ stream_1 = STLStream(packet=pkt_a,
flow_stats=STLFlowLatencyStats(pg_id=0),
- name='stream_1_lat',
- mode=STLTXCont(pps=lat_pps))
- stream_2_lat = STLStream(packet=pkt_b,
+ name='stream_1',
+ mode=STLTXSingleBurst(percentage=traffic['frame_rate'],
+ total_pkts=traffic['burst_size']))
+ stream_2 = STLStream(packet=pkt_b,
flow_stats=STLFlowLatencyStats(pg_id=1),
- name='stream_2_lat',
- mode=STLTXCont(pps=lat_pps))
+ name='stream_2',
+ mode=STLTXSingleBurst(percentage=traffic['frame_rate'],
+ total_pkts=traffic['burst_size']))
+ else:
+ stream_1 = STLStream(packet=pkt_a,
+ name='stream_1',
+ mode=STLTXSingleBurst(percentage=traffic['frame_rate'],
+ total_pkts=traffic['burst_size']))
+ stream_2 = STLStream(packet=pkt_b,
+ name='stream_2',
+ mode=STLTXSingleBurst(percentage=traffic['frame_rate'],
+ total_pkts=traffic['burst_size']))
+ else:
+ stream_1 = STLStream(packet=pkt_a,
+ name='stream_1',
+ mode=STLTXCont(percentage=traffic['frame_rate']))
+ stream_2 = STLStream(packet=pkt_b,
+ name='stream_2',
+ mode=STLTXCont(percentage=traffic['frame_rate']))
+ # workaround for latency statistics, which can't be enabled for streams
+ # with high framerate due to the huge performance impact
+ if lat_pps > 0:
+ stream_1_lat = STLStream(packet=pkt_a,
+ flow_stats=STLFlowLatencyStats(pg_id=0),
+ name='stream_1_lat',
+ mode=STLTXCont(pps=lat_pps))
+ stream_2_lat = STLStream(packet=pkt_b,
+ flow_stats=STLFlowLatencyStats(pg_id=1),
+ name='stream_2_lat',
+ mode=STLTXCont(pps=lat_pps))
return (stream_1, stream_2, stream_1_lat, stream_2_lat)
@@ -293,7 +319,7 @@ class Trex(ITrafficGenerator):
# since we can only control both ports at once take the lower of the two
max_speed = min(max_speed_1, max_speed_2)
gbps_speed = (max_speed / 1000) * (float(traffic['frame_rate']) / 100.0)
- self._logger.debug('Starting traffic at %s Gpbs speed', gbps_speed)
+ self._logger.debug('Starting traffic at %s Gbps speed', gbps_speed)
# for SR-IOV
if settings.getValue('TRAFFICGEN_TREX_PROMISCUOUS'):
@@ -382,20 +408,29 @@ class Trex(ITrafficGenerator):
result[ResultsConstants.FRAME_LOSS_PERCENT] = 100
if settings.getValue('TRAFFICGEN_TREX_LATENCY_PPS') > 0 and stats['latency']:
- result[ResultsConstants.MIN_LATENCY_NS] = (
- '{:.3f}'.format(
- (float(min(stats["latency"][0]["latency"]["total_min"],
- stats["latency"][1]["latency"]["total_min"])))))
-
- result[ResultsConstants.MAX_LATENCY_NS] = (
- '{:.3f}'.format(
- (float(max(stats["latency"][0]["latency"]["total_max"],
- stats["latency"][1]["latency"]["total_max"])))))
-
- result[ResultsConstants.AVG_LATENCY_NS] = (
- '{:.3f}'.format(
- float((stats["latency"][0]["latency"]["average"]+
- stats["latency"][1]["latency"]["average"])/2)))
+ try:
+ result[ResultsConstants.MIN_LATENCY_NS] = (
+ '{:.3f}'.format(
+ (float(min(stats["latency"][0]["latency"]["total_min"],
+ stats["latency"][1]["latency"]["total_min"])))))
+ except TypeError:
+ result[ResultsConstants.MIN_LATENCY_NS] = 'Unknown'
+
+ try:
+ result[ResultsConstants.MAX_LATENCY_NS] = (
+ '{:.3f}'.format(
+ (float(max(stats["latency"][0]["latency"]["total_max"],
+ stats["latency"][1]["latency"]["total_max"])))))
+ except TypeError:
+ result[ResultsConstants.MAX_LATENCY_NS] = 'Unknown'
+
+ try:
+ result[ResultsConstants.AVG_LATENCY_NS] = (
+ '{:.3f}'.format(
+ float((stats["latency"][0]["latency"]["average"]+
+ stats["latency"][1]["latency"]["average"])/2)))
+ except TypeError:
+ result[ResultsConstants.AVG_LATENCY_NS] = 'Unknown'
else:
result[ResultsConstants.MIN_LATENCY_NS] = 'Unknown'
@@ -568,9 +603,25 @@ class Trex(ITrafficGenerator):
raise NotImplementedError(
'Trex wait rfc2544 throughput not implemented')
- def send_burst_traffic(self, traffic=None, numpkts=100, duration=5):
- raise NotImplementedError(
- 'Trex send burst traffic not implemented')
+ def send_burst_traffic(self, traffic=None, duration=20):
+ """See ITrafficGenerator for description
+ """
+ self._logger.info("In Trex send_burst_traffic method")
+ self._params.clear()
+
+ self._params['traffic'] = self.traffic_defaults.copy()
+ if traffic:
+ self._params['traffic'] = merge_spec(
+ self._params['traffic'], traffic)
+
+ if settings.getValue('TRAFFICGEN_TREX_LEARNING_MODE'):
+ self.learning_packets(traffic)
+ self._logger.info("T-Rex sending traffic")
+ stats = self.generate_traffic(traffic, duration)
+
+ time.sleep(3) # allow packets to complete before reading stats
+
+ return self.calculate_results(stats)
def send_rfc2544_back2back(self, traffic=None, tests=1, duration=30,
lossrate=0.0):
diff --git a/tools/pkt_gen/xena/xena.py b/tools/pkt_gen/xena/xena.py
index c8988b06..33864079 100755
--- a/tools/pkt_gen/xena/xena.py
+++ b/tools/pkt_gen/xena/xena.py
@@ -566,7 +566,7 @@ class Xena(ITrafficGenerator):
self._xsocket.disconnect()
self._xsocket = None
- def send_burst_traffic(self, traffic=None, numpkts=100, duration=20):
+ def send_burst_traffic(self, traffic=None, duration=20):
"""Send a burst of traffic.
See ITrafficGenerator for description
@@ -577,7 +577,7 @@ class Xena(ITrafficGenerator):
if traffic:
self._params['traffic'] = merge_spec(self._params['traffic'],
traffic)
- self._start_traffic_api(numpkts)
+ self._start_traffic_api(traffic['burst_size'])
return self._stop_api_traffic()
def send_cont_traffic(self, traffic=None, duration=20):