# License for the specific language governing permissions and limitations
# under the License.
+import os
+import random
+import time
+import traceback
+
from collections import defaultdict
from itertools import count
from nfvbench.log import LOG
from nfvbench.specs import ChainType
from nfvbench.traffic_server import TRexTrafficServer
+from nfvbench.utils import cast_integer
from nfvbench.utils import timeout
from nfvbench.utils import TimeoutError
-import os
-import random
-import time
-import traceback
from traffic_base import AbstractTrafficGenerator
from traffic_base import TrafficGeneratorException
import traffic_utils as utils
+# pylint: disable=import-error
from trex_stl_lib.api import CTRexVmInsFixHwCs
from trex_stl_lib.api import Dot1Q
from trex_stl_lib.api import Ether
from trex_stl_lib.api import STLVmWrFlowVar
from trex_stl_lib.api import UDP
from trex_stl_lib.services.trex_stl_service_arp import STLServiceARP
+# pylint: enable=import-error
class TRex(AbstractTrafficGenerator):
stats = self.__combine_stats(in_stats, ph)
result[ph] = {
'tx': {
- 'total_pkts': int(stats['tx_pkts']['total']),
- 'total_pkt_bytes': int(stats['tx_bytes']['total']),
- 'pkt_rate': int(stats['tx_pps']['total']),
- 'pkt_bit_rate': int(stats['tx_bps']['total'])
+ 'total_pkts': cast_integer(stats['tx_pkts']['total']),
+ 'total_pkt_bytes': cast_integer(stats['tx_bytes']['total']),
+ 'pkt_rate': cast_integer(stats['tx_pps']['total']),
+ 'pkt_bit_rate': cast_integer(stats['tx_bps']['total'])
},
'rx': {
- 'total_pkts': int(stats['rx_pkts']['total']),
- 'total_pkt_bytes': int(stats['rx_bytes']['total']),
- 'pkt_rate': int(stats['rx_pps']['total']),
- 'pkt_bit_rate': int(stats['rx_bps']['total']),
- 'dropped_pkts': int(stats['tx_pkts']['total'] - stats['rx_pkts']['total'])
+ 'total_pkts': cast_integer(stats['rx_pkts']['total']),
+ 'total_pkt_bytes': cast_integer(stats['rx_bytes']['total']),
+ 'pkt_rate': cast_integer(stats['rx_pps']['total']),
+ 'pkt_bit_rate': cast_integer(stats['rx_bps']['total']),
+ 'dropped_pkts': cast_integer(
+ stats['tx_pkts']['total'] - stats['rx_pkts']['total'])
}
}
lat = self.__combine_latencies(in_stats, ph)
- result[ph]['rx']['max_delay_usec'] = int(
+ result[ph]['rx']['max_delay_usec'] = cast_integer(
lat['total_max']) if 'total_max' in lat else float('nan')
- result[ph]['rx']['min_delay_usec'] = int(
+ result[ph]['rx']['min_delay_usec'] = cast_integer(
lat['total_min']) if 'total_min' in lat else float('nan')
- result[ph]['rx']['avg_delay_usec'] = int(
- lat['average']) if 'average' in lat else float(
- 'nan')
+ result[ph]['rx']['avg_delay_usec'] = cast_integer(
+ lat['average']) if 'average' in lat else float('nan')
total_tx_pkts = result[0]['tx']['total_pkts'] + result[1]['tx']['total_pkts']
- result["total_tx_rate"] = int(total_tx_pkts / self.config.duration_sec)
+ result["total_tx_rate"] = cast_integer(total_tx_pkts / self.config.duration_sec)
return result
def __combine_stats(self, in_stats, port_handle):
def __combine_latencies(self, in_stats, port_handle):
"""Traverses TRex result dictionary and combines chosen latency stats."""
- if not len(self.latencies[port_handle]):
+ if not self.latencies[port_handle]:
return {}
result = defaultdict(float)
return result
def create_pkt(self, stream_cfg, l2frame_size):
- # 46 = 14 (Ethernet II) + 4 (CRC Checksum) + 20 (IPv4) + 8 (UDP)
- payload = 'x' * (max(64, int(l2frame_size)) - 46)
pkt_base = Ether(src=stream_cfg['mac_src'], dst=stream_cfg['mac_dst'])
if stream_cfg['vlan_tag'] is not None:
+ # 50 = 14 (Ethernet II) + 4 (Vlan tag) + 4 (CRC Checksum) + 20 (IPv4) + 8 (UDP)
pkt_base /= Dot1Q(vlan=stream_cfg['vlan_tag'])
+ payload = 'x' * (max(64, int(l2frame_size)) - 50)
+ else:
+ # 46 = 14 (Ethernet II) + 4 (CRC Checksum) + 20 (IPv4) + 8 (UDP)
+ payload = 'x' * (max(64, int(l2frame_size)) - 46)
udp_args = {}
if stream_cfg['udp_src_port']:
if os.path.isfile(logpath):
# Wait for TRex to finish writing error message
last_size = 0
- for it in xrange(self.config.generic_retry_count):
+ for _ in xrange(self.config.generic_retry_count):
size = os.path.getsize(logpath)
if size == last_size:
# probably not writing anymore
def __start_server(self):
server = TRexTrafficServer()
- server.run_server(self.config.generator_config)
+ server.run_server(self.config.generator_config, self.config.vlan_tagging)
def resolve_arp(self):
self.client.set_service_mode(ports=self.port_handle)
if len(self.arps[port]) == self.config.service_chain_count:
resolved += 1
- LOG.info('ARP resolved successfully for port {}'.format(port))
+ LOG.info('ARP resolved successfully for port %s', port)
break
else:
failed = [arp.get_record().dst_ip for arp in arps
if arp.get_record().dst_mac is None]
- LOG.info('Retrying ARP for: {} ({} / {})'.format(
- failed, attempt, self.config.generic_retry_count))
+ LOG.info('Retrying ARP for: %s (%d / %d)',
+ failed, attempt, self.config.generic_retry_count)
time.sleep(self.config.generic_poll_sec)
self.client.set_service_mode(ports=self.port_handle, enabled=False)
stream_cfgs = [d.get_stream_configs(self.config.generator_config.service_chain)
for d in self.config.generator_config.devices]
- self.rates = map(lambda rate: utils.to_rate_str(rate), rates)
+ self.rates = [utils.to_rate_str(rate) for rate in rates]
for ph in self.port_handle:
# generate one pg_id for each direction
for ph in self.port_handle:
self.client.add_streams(self.streamblock[ph], ports=ph)
- LOG.info('Created traffic stream for port %s.' % ph)
-
- def modify_rate(self, rate, reverse):
- port_index = int(reverse)
- port = self.port_handle[port_index]
- self.rates[port_index] = utils.to_rate_str(rate)
- LOG.info('Modified traffic stream for %s, new rate=%s.' % (port, utils.to_rate_str(rate)))
+ LOG.info('Created traffic stream for port %s.', ph)
def clear_streamblock(self):
self.streamblock = defaultdict(list)
Code Review / nfvbench.git / blobdiff