def _create_single_stream(self,
current_port,
imix_data,
imix_sum,
isg=0.0):
streams = []
for size, weight in ((int(size), float(weight))
for (size, weight) in imix_data.items()
if float(weight) > 0):
if current_port == 1:
isg += 10.0
if self.max_rate > 100:
mode = trex_stl_streams.STLTXCont(pps=int(weight * imix_sum /
100))
mode_lat = mode
else:
mode = trex_stl_streams.STLTXCont(percentage=weight *
self.max_rate / 100)
mode_lat = trex_stl_streams.STLTXCont(pps=9000)
packet, packet_lat = self._create_single_packet(size)
streams.append(
trex_stl_client.STLStream(isg=isg, packet=packet, mode=mode))
if self.enable_latency:
pg_id = self.port_pg_id.increase_pg_id(current_port)
stl_flow = trex_stl_streams.STLFlowLatencyStats(pg_id=pg_id)
stream_lat = trex_stl_client.STLStream(isg=isg,
packet=packet_lat,
mode=mode_lat,
flow_stats=stl_flow)
streams.append(stream_lat)
return streams
def _create_streams(self, imix_data, rate, port_pg_id, enable_latency):
"""Create a list of streams per packet size
The STL TX mode speed of the generated streams will depend on the frame
weight and the frame rate. Both the frame weight and the total frame
rate are normalized to 100. The STL TX mode speed, defined in
percentage, is the combitation of both percentages. E.g.:
frame weight = 100
rate = 90
--> STLTXmode percentage = 10 (%)
frame weight = 80
rate = 50
--> STLTXmode percentage = 40 (%)
:param imix_data: (dict) IMIX size and weight
:param rate: (float) normalized [0..100] total weight
:param pg_id: (PortPgIDMap) port / pg_id (list) map
"""
streams = []
for size, weight in ((int(size), float(weight))
for (size, weight) in imix_data.items()
if float(weight) > 0):
packet = self._create_single_packet(size)
pg_id = port_pg_id.increase_pg_id()
stl_flow = (trex_stl_streams.STLFlowLatencyStats(
pg_id=pg_id) if enable_latency else None)
mode = trex_stl_streams.STLTXCont(percentage=weight * rate / 100)
streams.append(
trex_stl_client.STLStream(packet=packet,
flow_stats=stl_flow,
mode=mode))
return streams