import struct
import time
import traffic_gen.traffic_utils as utils
+from trex_stl_lib.api import STLError
+from utils import cast_integer
class TrafficClientException(Exception):
# ensures enough traffic is coming back
threshold = (self.config.service_chain_count - 1) / float(self.config.service_chain_count)
-
- for it in xrange(self.config.generic_retry_count):
+ retry_count = (self.config.check_traffic_time_sec +
+ self.config.generic_poll_sec - 1) / self.config.generic_poll_sec
+ for it in xrange(retry_count):
self.gen.clear_stats()
self.gen.start_traffic()
LOG.info('Waiting for packets to be received back... ({} / {})'.format(it + 1,
- self.config.generic_retry_count))
+ retry_count))
time.sleep(self.config.generic_poll_sec)
self.gen.stop_traffic()
stats = self.gen.get_stats()
retDict[port]['rx'][key] = int(stats[port]['rx'][key])
except ValueError:
retDict[port]['rx'][key] = 0
- retDict[port]['rx']['avg_delay_usec'] = int(stats[port]['rx']['avg_delay_usec'])
- retDict[port]['rx']['min_delay_usec'] = int(stats[port]['rx']['min_delay_usec'])
- retDict[port]['rx']['max_delay_usec'] = int(stats[port]['rx']['max_delay_usec'])
+ retDict[port]['rx']['avg_delay_usec'] = cast_integer(
+ stats[port]['rx']['avg_delay_usec'])
+ retDict[port]['rx']['min_delay_usec'] = cast_integer(
+ stats[port]['rx']['min_delay_usec'])
+ retDict[port]['rx']['max_delay_usec'] = cast_integer(
+ stats[port]['rx']['max_delay_usec'])
retDict[port]['drop_rate_percent'] = self.__get_dropped_rate(retDict[port])
ports = sorted(retDict.keys())
# Obtain the average drop rate in for middle load
middle = (left + right) / 2.0
- stats, rates = self.__run_search_iteration(middle)
-
+ try:
+ stats, rates = self.__run_search_iteration(middle)
+ except STLError:
+ LOG.exception("Got exception from traffic generator during binary search")
+ self.__targets_found(left, targets, results)
+ return
# Split target dicts based on the avg drop rate
left_targets = {}
right_targets = {}
})
right_targets[tag] = target
else:
+ # initialize to 0 all fields of result for
+ # the worst case scenario of the binary search (if ndr/pdr is not found)
+ if tag not in results:
+ results[tag] = dict.fromkeys(rates, 0)
+ empty_stats = self.__format_output_stats(dict(stats))
+ for key in empty_stats:
+ if isinstance(empty_stats[key], dict):
+ empty_stats[key] = dict.fromkeys(empty_stats[key], 0)
+ else:
+ empty_stats[key] = 0
+ results[tag].update({
+ 'load_percent_per_direction': 0,
+ 'stats': empty_stats,
+ 'timestamp_sec': None
+ })
left_targets[tag] = target
# search lower half
config['direction-total'] = dict(config['direction-forward'])
config['direction-total'].update({
'rate_percent': load_total,
- 'rate_pps': pps_total,
+ 'rate_pps': cast_integer(pps_total),
'rate_bps': bps_total
})