X-Git-Url: https://gerrit.fd.io/r/gitweb?p=csit.git;a=blobdiff_plain;f=GPL%2Ftools%2Ftrex%2Ftrex_astf_stop.py;fp=GPL%2Ftools%2Ftrex%2Ftrex_astf_stop.py;h=be13e8ed428dd20b70b8dcf422b570e1db0efdab;hp=0000000000000000000000000000000000000000;hb=38ba3408ef77161b61cd4be702d0c6e8fc36f8e5;hpb=a40195bdda6ec06af8479cfe7d3b3e11d4c9778f diff --git a/GPL/tools/trex/trex_astf_stop.py b/GPL/tools/trex/trex_astf_stop.py new file mode 100644 index 0000000000..be13e8ed42 --- /dev/null +++ b/GPL/tools/trex/trex_astf_stop.py @@ -0,0 +1,154 @@ +#!/usr/bin/python3 + +# Copyright (c) 2020 Cisco and/or its affiliates. +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at: +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +"""This script uses T-REX advanced stateful API to drive t-rex instance. + +Requirements: +- T-REX: https://github.com/cisco-system-traffic-generator/trex-core + - compiled and running T-REX process (eg. ./t-rex-64 -i) + - trex.astf.api library +- Script must be executed on a node with T-REX instance + +Functionality: +1. Stop any running traffic +2. Optionally restore reference counter values. +3. Return conter differences. +""" + +import argparse +import json +import sys + +from collections import OrderedDict # Needed to parse xstats representation. + +sys.path.insert( + 0, u"/opt/trex-core-2.73/scripts/automation/trex_control_plane/interactive/" +) +from trex.astf.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 = ASTFClient() + try: + # connect to server + client.connect() + + client.acquire(force=True) + client.stop() + + # 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) + + # If TRexError happens, let the script fail with stack trace. + finally: + client.clear_profile() + client.disconnect() + + # TODO: check xstats format + 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[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 + + client_stats = xstats0[u"traffic"][u"client"] + server_stats = xstats1[u"traffic"][u"server"] + # Active and established flows UDP/TCP + # Client + c_act_flows = client_stats[u"m_active_flows"] + c_est_flows = client_stats[u"m_est_flows"] + l7_data = f"client_active_flows={c_act_flows}, " + l7_data += f"client_established_flows={c_est_flows}, " + # Server + s_act_flows = server_stats[u"m_active_flows"] + s_est_flows = server_stats[u"m_est_flows"] + l7_data += f"server_active_flows={s_act_flows}, " + l7_data += f"server_established_flows={s_est_flows}, " + # Some zero counters are not sent + # Client + # Established connections + c_udp_connects = client_stats.get(u"udps_connects", 0) + l7_data += f"client_udp_connects={c_udp_connects}, " + # Closed connections + c_udp_closed = client_stats.get(u"udps_closed", 0) + l7_data += f"client_udp_closed={c_udp_closed}, " + # Server + # Accepted connections + s_udp_accepts = server_stats.get(u"udps_accepts", 0) + l7_data += f"server_udp_accepts={s_udp_accepts}, " + # Closed connections + s_udp_closed = server_stats.get(u"udps_closed", 0) + # Client + # Initiated connections + c_tcp_connatt = client_stats.get(u"tcps_connattempt", 0) + l7_data += f"client_tcp_connect_inits={c_tcp_connatt}, " + # Established connections + c_tcp_connects = client_stats.get(u"tcps_connects", 0) + l7_data += f"client_tcp_connects={c_tcp_connects}, " + # Closed connections + c_tcp_closed = client_stats.get(u"tcps_closed", 0) + l7_data += f"client_tcp_closed={c_tcp_closed}, " + # Server + # Accepted connections + s_tcp_accepts = server_stats.get(u"tcps_accepts", 0) + l7_data += f"server_tcp_accepts={s_tcp_accepts}, " + # Established connections + s_tcp_connects = server_stats.get(u"tcps_connects", 0) + l7_data += f"server_tcp_connects={s_tcp_connects}, " + # Closed connections + s_tcp_closed = server_stats.get(u"tcps_closed", 0) + l7_data += f"server_tcp_closed={s_tcp_closed}, " + + print(f"packets 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( + f"cps='unknown', total_received={total_rcvd}, total_sent={total_sent}, " + f"frame_loss={total_lost}, " + f"latency_stream_0(usec)=-1/-1/-1, latency_stream_1(usec)=-1/-1/-1, " + u"latency_hist_stream_0={}, latency_hist_stream_1={}, " + f"{l7_data}" + ) + + +if __name__ == u"__main__": + main()