- name: trex-local
tool: TRex
ip: 127.0.0.1
- cores: 3
+ cores: 4
software_mode: false
interfaces:
- port: 0
switch_port:
intf_speed:
+# Simpler override for trex core count and mbuf multilier factor
+# if empty defaults to the one specified in generator_profile.cores
+cores:
+
+# mbuffer ratio to use for TRex (see TRex documentation for more details)
+mbuf_factor: 0.2
+
# -----------------------------------------------------------------------------
# These variables are not likely to be changed
# copy over fields from the dict
self.tool = gen_config.tool
self.ip = gen_config.ip
- self.cores = gen_config.get('cores', 1)
+ # overrides on config.cores and config.mbuf_factor
+ if config.cores:
+ self.cores = config.cores
+ else:
+ self.cores = gen_config.get('cores', 1)
+ self.mbuf_factor = config.mbuf_factor
if gen_config.intf_speed:
# interface speed is overriden from config
self.intf_speed = bitmath.parse_string(gen_config.intf_speed.replace('ps', '')).bits
self.trex_dir = os.path.join(trex_base_dir, contents[0])
def run_server(self, generator_config, filename='/etc/trex_cfg.yaml'):
- """
- Runs TRex server for specified traffic profile.
+ """Run TRex server for specified traffic profile.
:param traffic_profile: traffic profile object based on config file
:param filename: path where to save TRex config file
vtep_vlan = generator_config.gen_config.get('vtep_vlan')
sw_mode = "--software" if generator_config.software_mode else ""
vlan_opt = "--vlan" if (generator_config.vlan_tagging or vtep_vlan) else ""
+ if generator_config.mbuf_factor:
+ mbuf_opt = "--mbuf-factor " + str(generator_config.mbuf_factor)
+ else:
+ mbuf_opt = ""
subprocess.Popen(['nohup', '/bin/bash', '-c',
'./t-rex-64 -i -c {} --iom 0 --no-scapy-server --close-at-end {} '
- '{} --cfg {} &> /tmp/trex.log & disown'.format(cores, sw_mode,
- vlan_opt, cfg)],
+ '{} {} --cfg {} &> /tmp/trex.log & disown'.format(cores, sw_mode,
+ vlan_opt,
+ mbuf_opt, cfg)],
cwd=self.trex_dir)
LOG.info('TRex server is running...')
'check_traffic_time_sec': 200,
'generic_poll_sec': 2,
'measurement': {'NDR': 0.001, 'PDR': 0.1, 'load_epsilon': 0.1},
- 'l2_loopback': False
+ 'l2_loopback': False,
+ 'cores': None,
+ 'mbuf_factor': None
})
def _get_traffic_client():