Functionality:
1. Stop any running traffic
+2. Optionally restore reference counter values.
+3. Return conter differences.
"""
-import sys
+import argparse
import json
+import sys
+
+from collections import OrderedDict # Needed to parse xstats representation.
-sys.path.insert(0, "/opt/trex-core-2.54/scripts/automation/"+\
- "trex_control_plane/interactive/")
+sys.path.insert(
+ 0, u"/opt/trex-core-2.73/scripts/automation/trex_control_plane/interactive/"
+)
from trex.stl.api import *
def main():
"""Stop traffic if any is running. Report xstats."""
+ parser = argparse.ArgumentParser()
+ parser.add_argument(
+ u"--xstat0", type=str, default=u"",
+ help=u"Reference xstat object if any."
+ )
+ parser.add_argument(
+ u"--xstat1", type=str, default=u"",
+ help=u"Reference xstat object if any."
+ )
+ args = parser.parse_args()
+
client = STLClient()
try:
# connect to server
# TODO: Support unidirection.
client.stop(ports=[0, 1])
- # read the stats after the test
+ # Read the stats after the test,
+ # we need to update values before the last trial started.
+ if args.xstat0:
+ snapshot = eval(args.xstat0)
+ client.ports[0].get_xstats().reference_stats = snapshot
+ if args.xstat1:
+ snapshot = eval(args.xstat1)
+ client.ports[1].get_xstats().reference_stats = snapshot
+ # Now we can call the official method to get differences.
xstats0 = client.get_xstats(0)
xstats1 = client.get_xstats(1)
finally:
client.disconnect()
- print("##### statistics port 0 #####")
- print(json.dumps(xstats0, indent=4, separators=(',', ': ')))
- print("##### statistics port 1 #####")
- print(json.dumps(xstats1, indent=4, separators=(',', ': ')))
+ print(u"##### statistics port 0 #####")
+ print(json.dumps(xstats0, indent=4, separators=(u",", u": ")))
+ print(u"##### statistics port 1 #####")
+ print(json.dumps(xstats1, indent=4, separators=(u",", u": ")))
- tx_0, rx_0 = xstats0["tx_good_packets"], xstats0["rx_good_packets"]
- tx_1, rx_1 = xstats1["tx_good_packets"], xstats1["rx_good_packets"]
+ tx_0, rx_0 = xstats0[u"tx_good_packets"], xstats0[u"rx_good_packets"]
+ tx_1, rx_1 = xstats1[u"tx_good_packets"], xstats1[u"rx_good_packets"]
lost_a, lost_b = tx_0 - rx_1, tx_1 - rx_0
- print("\npackets lost from 0 --> 1: {0} pkts".format(lost_a))
- print("packets lost from 1 --> 0: {0} pkts".format(lost_b))
+ print(f"\npackets lost from 0 --> 1: {lost_a} pkts")
+ print(f"packets lost from 1 --> 0: {lost_b} pkts")
total_rcvd, total_sent = rx_0 + rx_1, tx_0 + tx_1
total_lost = total_sent - total_rcvd
# TODO: Add latency.
print(
- "rate='unknown', totalReceived={rec}, totalSent={sen}, frameLoss={los},"
- " latencyStream0(usec)=-1/-1/-1, latencyStream1(usec)=-1/-1/-1,"
- " targetDuration='manual'".format(
- rec=total_rcvd, sen=total_sent, los=total_lost))
+ f"rate='unknown', totalReceived={total_rcvd}, totalSent={total_sent}, "
+ f"frameLoss={total_lost}, latencyStream0(usec)=-1/-1/-1, "
+ f"latencyStream1(usec)=-1/-1/-1, targetDuration='manual'"
+ )
+
-if __name__ == "__main__":
+if __name__ == u"__main__":
main()