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ovs_performance.py
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#!/usr/bin/python
#
# Copyright 2017 "OVS Performance" Authors
#
# 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.
#
# Files name:
# ovs_performance.py
#
# Description:
# Simple script to run the OVS performance tests
#
# Author:
# Eelco Chaudron
#
# Initial Created:
# 17 January 2017
#
# Notes:
# - Install the spur python module
# dnf install python-spur
# - Install the XenaPythonLib from https://github.com/fleitner/XenaPythonLib
# cd XenaPythonLib/
# sudo python setup.py install
# - Install natsort and enum modules
# pip install natsort enum34
# - Install matplotlib
# dnf install python-matplotlib
# - Install latest Scapy
# pip install scapy
# - Install netaddr
# pip install netaddr
# - Install packaging (python3)
# pip install packaging
#
# Example:
#
#
# TODOs:
# - Add tunnel test cases (Geneve and VXLAN)
# - Add check after test to see all OF flows got packets (n_packets != 0)
# - Add option to stop trying more packet sizes once maximum performance
# of link is reached (i.e. two consecutive runs @ wire speed)
# - Add option to maximize traffic rate (PPS, and/or % based on port speed)
# - Add some VLAN test cases
# - Add a Bi-directional PVP test [phy0-vf0-VM-vf1-phy1]
# - Add option to run traffic part multiple(3) times to calculate deviation,
# and add error bars to the graphs
#
#
# Imports
#
import argparse
import csv
import datetime
import inspect
import logging
import numpy as np
import os
import re
import spur
import sys
import time
#
# Imports from simpel shell API
#
from dut_ssh_shell import DutSshShell
#
# Import general traffic_generator library
#
from traffic_generator_base import TrafficFlowType
from traffic_generator import TrafficGenerator, TrafficGeneratorType
#
# Imports from natural sort
#
from natsort import natsorted
#
# Imports from packaging or distutils
#
if sys.version_info[0] == 2:
from distutils.version import StrictVersion as Version
else:
from packaging.version import Version
#
# Imports from Matplot, by default disable the tk interface
#
import matplotlib
matplotlib.use('Agg')
# In Python 2, raw_input() returns a string, and input() tries
# to run the input as a Python expression.
# Since getting a string was almost always what we wanted,
# Python 3 does that with input()
# The following line checks the Python version being used to
# stick to raw_input() for Python2 and input() for Python3
if sys.version_info[0] == 3:
raw_input = input
#
# Default configuration
#
DEFAULT_TESTER_TYPE = 'xena'
DEFAULT_TESTER_SERVER_ADDRESS = ''
DEFAULT_TESTER_INTERFACE = ''
DEFAULT_SECOND_TESTER_INTERFACE = ''
DEFAULT_DUT_ADDRESS = ''
DEFAULT_DUT_LOGIN_USER = 'root'
DEFAULT_DUT_LOGIN_PASSWORD = 'root'
DEFAULT_DUT_VM_ADDRESS = ''
DEFAULT_DUT_SECOND_VM_ADDRESS = ''
DEFAULT_DUT_VM_NIC_PCI_ADDRESS = ''
DEFAULT_DUT_VM_LOGIN_USER = 'root'
DEFAULT_DUT_VM_LOGIN_PASSWORD = 'root'
DEFAULT_PHYSICAL_INTERFACE = ''
DEFAULT_SECOND_PHYSICAL_INTERFACE = ''
DEFAULT_PACKET_LIST = '64, 128, 256, 512, 768, 1024, 1514'
DEFAULT_VIRTUAL_INTERFACE = ''
DEFAULT_SECOND_VIRTUAL_INTERFACE = ''
DEFAULT_RUN_TIME = 20
DEFAULT_STREAM_LIST = '10, 1000, 10000, 100000, 1000000'
DEFAULT_BRIDGE_NAME = 'ovs_pvp_br0'
DEFAULT_WARM_UP_TIMEOUT = 360
DEFAULT_DST_MAC_ADDRESS = '00:00:02:00:00:00'
DEFAULT_SRC_MAC_ADDRESS = '00:00:01:00:00:00'
#
# Run simple traffic test Virtual to Virtual
#
def test_v2v(nr_of_flows, packet_sizes):
v2v_tx_results = list()
v2v_rx_results = list()
cpu_results = list()
for packet_size in packet_sizes:
##################################################
lprint("- [TEST: {0}(flows={1}, packet_size={2})] START".
format(inspect.currentframe().f_code.co_name,
nr_of_flows, packet_size))
##################################################
lprint(" * Create OVS OpenFlow rules...")
create_ovs_of_rules(nr_of_flows,
of_interfaces[config.virtual_interface],
of_interfaces[config.second_virtual_interface])
##################################################
lprint(" * Start packet receiver on second VM...")
start_traffic_rx_on_vm(config.dut_second_vm_address,
config.dut_second_vm_nic_pci)
##################################################
lprint(" * Start CPU monitoring on DUT...")
start_cpu_monitoring()
##################################################
lprint(" * Start packet generation for {0} seconds...".format(
config.run_time))
start_traffic_tx_on_vm(config.dut_vm_address,
nr_of_flows, packet_size)
time.sleep(config.run_time)
##################################################
lprint(" * Stop CPU monitoring on DUT...")
stop_cpu_monitoring()
##################################################
lprint(" * Stopping packet stream on VM1...")
stop_traffic_tx_on_vm(config.dut_vm_address)
##################################################
lprint(" * Stop packet receiver on VM2...")
stop_traffic_rx_on_vm(config.dut_second_vm_address)
##################################################
lprint(" * Gathering statistics...")
of_dump_port_to_logfile(config.bridge_name)
vm_pkts_sec = get_traffic_rx_stats_from_vm(
config.dut_second_vm_address)
vm_tx_pkts_sec = get_traffic_tx_stats_from_vm(config.dut_vm_address)
lprint(" - Transmit rate on VM: {:,} pps".format(vm_tx_pkts_sec))
lprint(" ! Result, average: {:,} pps".format(vm_pkts_sec))
cpu_results.append(get_cpu_monitoring_stats())
v2v_tx_results.append(vm_tx_pkts_sec)
v2v_rx_results.append(vm_pkts_sec)
##################################################
lprint(" * Restoring state for next test...")
# dut_shell.dut_exec('sh -c "ovs-ofctl del-flows {0} && '
# 'ovs-appctl dpctl/del-flows"'.\
# format(config.bridge_name),
# die_on_error=True)
##################################################
lprint("- [TEST: {0}(flows={1}, packet_size={2})] END".
format(inspect.currentframe().f_code.co_name,
nr_of_flows, packet_size))
flow_str = get_flow_type_short()
flow_file_str = get_flow_type_name()
create_multiple_graph(packet_sizes, {'Send Rate': v2v_tx_results,
'Receive Rate': v2v_rx_results},
"Packet size", "Packets/second",
"Virtual to Virtual with {} {} flows".format(
nr_of_flows, flow_str),
"test_v2v_{}_{}".format(nr_of_flows, flow_file_str),
None,
cpu_utilization={'Receive Rate': cpu_results})
create_multiple_graph(packet_sizes, {'Send Rate': v2v_tx_results,
'Receive Rate': v2v_rx_results},
"Packet size", "Packets/second",
"Virtual to Virtual with {} {} flows".format(
nr_of_flows, flow_str),
"test_v2v_{}_{}_ref".format(nr_of_flows,
flow_file_str),
[phy_speed], cpu_utilization={'Receive Rate':
cpu_results})
return v2v_rx_results, cpu_results
#
# Calculate loss percentage
#
def calc_loss_percentage(results):
value = 100 - (float(results["total_rx_pkts"])
/ float(results["total_tx_pkts"])
* 100)
return max(value, 0)
#
# Get the PVP results for a single binary search iteration
#
def PVP_binary_search_single_run(test_value, **kwargs):
packet_size = kwargs.get("packet_size", 64)
nr_of_streams = kwargs.get("nr_of_streams", 10)
results = test_p2v2p_single_packet_size(nr_of_streams, packet_size,
decrease_rate=100 - test_value)
results["traffic_rate"] = test_value
lprint(" > Zero pkt loss: pkt {}, load {:.6f}%, miss {:.6f}%".
format(packet_size, test_value,
calc_loss_percentage(results)))
return results
#
# Run the NFV mobile tests for a binary search iteration
#
def PVP_binary_search_itteration_result(result_values, test_value, **kwargs):
return calc_loss_percentage(result_values[test_value])
#
# binary search to find the highest value where the results are less or equal
# to the required_result.
#
# It will return all the data sets returned by the run_test_function,
# and index which one is matching the above. -1 means it was not found!
#
def binary_search(min_value, max_value, required_result,
run_test_function,
get_results_function,
**kwargs):
step = kwargs.pop("bs_step", 1)
results = dict()
#
# Need values from max to min, but in low to high order
#
values = np.arange(max_value, min_value - min(min_value, step), -step)
values = values[::-1]
if len(values) <= 1:
return results, -1
#
# Here we do a binary like search until the min and max values are one
# apart. When this happens we closed in to the highest possible value to
# get the results, or if both are not matching we can not achieve the
# requested.
#
current_min = 0
current_max = len(values) - 1
while True:
if current_min == current_max - 1:
break
current_test = int(current_min + ((current_max - current_min) / 2))
results[values[current_test]] = run_test_function(values[current_test],
**kwargs)
result = get_results_function(results, values[current_test], **kwargs)
if result > required_result:
current_max = current_test
else:
current_min = current_test
if not values[current_max] in results:
results[values[current_max]] = run_test_function(values[current_max],
**kwargs)
if get_results_function(results, values[current_max],
**kwargs) <= required_result:
return results, values[current_max]
if not values[current_min] in results:
results[values[current_min]] = run_test_function(values[current_min],
**kwargs)
if get_results_function(results, values[current_min],
**kwargs) <= required_result:
return results, values[current_min]
return results, -1
#
# Run simple traffic test Physical to VM back to Physical
#
def test_p2v2p_single_packet_size(nr_of_flows, packet_size, **kwargs):
decrease_rate = kwargs.get("decrease_rate", 0)
assert (decrease_rate >= 0 or decrease_rate < 100)
decrease_rate *= 10000
results = dict()
##################################################
lprint("- [TEST: {0}(flows={1}, packet_size={2}, rate={3:.2f}%)] START".
format(inspect.currentframe().f_code.co_name,
nr_of_flows, packet_size, (1000000 - decrease_rate) / 10000))
##################################################
lprint(" * Create OVS OpenFlow rules...")
create_ovs_bidirectional_of_rules(nr_of_flows,
of_interfaces[config.physical_interface],
of_interfaces[config.virtual_interface])
##################################################
lprint(" * Initializing packet generation...")
tester.configure_traffic_stream(config.tester_interface,
get_traffic_generator_flow(),
nr_of_flows, packet_size,
traffic_dst_mac=config.dst_mac_address,
traffic_src_mac=config.src_mac_address,
percentage=1000000 - decrease_rate,
random_payload=config.payload_packet_random
)
##################################################
if config.warm_up:
lprint(" * Doing flow table warm-up...")
start_vm_time = datetime.datetime.now()
start_traffic_loop_on_vm(config.dut_vm_address,
config.dut_vm_nic_pci)
tester.start_traffic(config.tester_interface)
warm_up_done = warm_up_verify(nr_of_flows * 2,
config.warm_up_timeout)
tester.stop_traffic(config.tester_interface)
if not warm_up_done and not config.warm_up_no_fail:
sys.exit(-1)
##################################################
lprint(" * Clear all statistics...")
tester.clear_statistics(config.tester_interface)
pp_tx_start, pp_tx_drop_start, pp_rx_start, pp_rx_drop_start \
= get_of_port_packet_stats(of_interfaces[config.physical_interface])
vp_tx_start, vp_tx_drop_start, vp_rx_start, vp_rx_drop_start \
= get_of_port_packet_stats(of_interfaces[config.virtual_interface])
##################################################
if not config.warm_up:
lprint(" * Start packet receiver on VM...")
start_traffic_loop_on_vm(config.dut_vm_address,
config.dut_vm_nic_pci)
warm_up_time = 0
else:
# warm_up_time is the total time it takes from the start of the
# VM at warm-up till we would normally start the loop back VM.
# This values is used to remove warm-up statistics.
warm_up_time = int(np.ceil((datetime.datetime.now()
- start_vm_time).total_seconds()))
lprint(" * Determine warm op time, {} seconds...".
format(warm_up_time))
##################################################
lprint(" * Start CPU monitoring on DUT...")
start_cpu_monitoring()
##################################################
lprint(" * Start packet generation for {0} seconds...".format(
config.run_time))
tester.start_traffic(config.tester_interface)
for i in range(1, config.run_time):
time.sleep(1)
tester.take_rx_statistics_snapshot(config.tester_interface)
##################################################
lprint(" * Stop CPU monitoring on DUT...")
stop_cpu_monitoring()
##################################################
lprint(" * Stopping packet stream...")
tester.stop_traffic(config.tester_interface)
time.sleep(1)
##################################################
lprint(" * Stop packet receiver on VM...")
# Due to a change in OVS we need to get the vhost stats before we bring
# it down.
vp_tx_end, vp_tx_drop_end, vp_rx_end, vp_rx_drop_end \
= get_of_port_packet_stats(of_interfaces[config.virtual_interface])
stop_traffic_loop_on_vm(config.dut_vm_address)
##################################################
lprint(" * Gathering statistics...")
tester.take_statistics_snapshot(config.tester_interface)
full_tx_stats = tester.get_tx_statistics_snapshots(config.tester_interface)
full_rx_stats = tester.get_rx_statistics_snapshots(config.tester_interface)
slogger.debug(" full_tx_stats={}".format(full_tx_stats))
slogger.debug(" full_rx_stats={}".format(full_rx_stats))
pp_tx_end, pp_tx_drop_end, pp_rx_end, pp_rx_drop_end \
= get_of_port_packet_stats(of_interfaces[config.physical_interface])
pp_rx = pp_rx_end - pp_rx_start
pp_tx = pp_tx_end - pp_tx_start
pp_rx_drop = pp_rx_drop_end - pp_rx_drop_start
pp_tx_drop = pp_tx_drop_end - pp_tx_drop_start
vp_rx = vp_rx_end - vp_rx_start
vp_tx = vp_tx_end - vp_tx_start
vp_rx_drop = vp_rx_drop_end - vp_rx_drop_start
vp_tx_drop = vp_tx_drop_end - vp_tx_drop_start
vm_pkts_sec = get_traffic_rx_stats_from_vm(config.dut_vm_address,
skip_samples=warm_up_time)
packets_tx = full_tx_stats[sorted(
full_tx_stats.keys())[-1]]['pt_total']['packets']
packets_rx = full_rx_stats[sorted(
full_rx_stats.keys())[-1]]['pr_total']['packets']
lprint(" - Packets send by Tester : {:-20,}".format(packets_tx))
lprint(" - Packets received by physical: {:-20,} [Lost {:,}, Drop "
"{:,}]".format(pp_rx, packets_tx - pp_rx, pp_rx_drop))
lprint(" - Packets received by virtual : {:-20,} [Lost {:,}, Drop "
"{:,}]".format(vp_tx, pp_rx - vp_tx, vp_tx_drop))
lprint(" - Packets send by virtual : {:-20,} [Lost {:,}, Drop "
"{:,}]".format(vp_rx, vp_tx - vp_rx, vp_rx_drop))
lprint(" - Packets send by physical : {:-20,} [Lost {:,}, Drop "
"{:,}]".format(pp_tx, vp_rx - pp_tx, pp_tx_drop))
lprint(" - Packets received by Tester : {:-20,} [Lost {:,}]".
format(packets_rx, pp_tx - packets_rx))
lprint(" - Receive rate on VM: {:,} pps".format(vm_pkts_sec))
rx_pkts_sec = get_packets_per_second_from_traffic_generator_rx_stats(
full_rx_stats)
lprint(" ! Result, average: {:,} pps".format(rx_pkts_sec))
##################################################
lprint(" * Restoring state for next test...")
tester.unconfigure_traffic_stream(config.tester_interface)
# dut_shell.dut_exec('sh -c "ovs-ofctl del-flows {0} && '
# 'ovs-appctl dpctl/del-flows"'.\
# format(config.bridge_name),
# die_on_error=True)
##################################################
lprint("- [TEST: {0}(flows={1}, packet_size={2})] END".
format(inspect.currentframe().f_code.co_name,
nr_of_flows, packet_size))
results["cpu_stats"] = get_cpu_monitoring_stats()
results["rx_packets_second"] = rx_pkts_sec
results["total_tx_pkts"] = packets_tx
results["total_rx_pkts"] = packets_rx
return results
#
# Run simple traffic test Physical to VM back to Physical
#
def test_p2v2p(nr_of_flows, packet_sizes):
p2v2p_results = list()
cpu_results = list()
for packet_size in packet_sizes:
results = test_p2v2p_single_packet_size(nr_of_flows, packet_size,
decrease_rate=100
- config.traffic_rate)
cpu_results.append(results["cpu_stats"])
p2v2p_results.append(results["rx_packets_second"])
create_single_graph(packet_sizes, p2v2p_results,
"Packet size", "Packets/second",
"Physical to Virtual back to Physical with {} {} "
"flows{}".format(nr_of_flows, get_flow_type_short(),
get_traffic_rate_str()),
"test_p2v2p_{}_{}".format(nr_of_flows,
get_flow_type_name()),
phy_speed,
cpu_utilization=cpu_results)
return p2v2p_results, cpu_results
#
# Run simple traffic test Physical to VM
#
def test_p2v(nr_of_flows, packet_sizes):
p2v_results = list()
cpu_results = list()
for packet_size in packet_sizes:
##################################################
lprint("- [TEST: {0}(flows={1}, packet_size={2}, rate={3:.3f}%)]"
" START".format(inspect.currentframe().f_code.co_name,
nr_of_flows, packet_size, config.traffic_rate))
##################################################
lprint(" * Create OVS OpenFlow rules...")
create_ovs_of_rules(nr_of_flows,
of_interfaces[config.physical_interface],
of_interfaces[config.virtual_interface])
##################################################
lprint(" * Initializing packet generation...")
tester.configure_traffic_stream(
config.tester_interface,
get_traffic_generator_flow(),
nr_of_flows, packet_size,
traffic_dst_mac=config.dst_mac_address,
traffic_src_mac=config.src_mac_address,
percentage=config.traffic_rate * 10000,
random_payload=config.payload_packet_random)
##################################################
if config.warm_up:
lprint(" * Doing flow table warm-up...")
tester.start_traffic(config.tester_interface)
warm_up_done = warm_up_verify(nr_of_flows, config.warm_up_timeout)
tester.stop_traffic(config.tester_interface)
if not warm_up_done and not config.warm_up_no_fail:
sys.exit(-1)
##################################################
lprint(" * Clear all statistics...")
tester.clear_statistics(config.tester_interface)
pp_rx_start = get_of_port_packet_stats(
of_interfaces[config.physical_interface])[2]
vp_tx_start, vp_tx_drop_start = get_of_port_packet_stats(
of_interfaces[config.virtual_interface])[0:2]
##################################################
lprint(" * Start packet receiver on VM...")
start_traffic_rx_on_vm(config.dut_vm_address,
config.dut_vm_nic_pci)
##################################################
lprint(" * Start CPU monitoring on DUT...")
start_cpu_monitoring()
##################################################
lprint(" * Start packet generation for {0} seconds...".format(
config.run_time))
tester.start_traffic(config.tester_interface)
for i in range(1, config.run_time):
time.sleep(1)
##################################################
lprint(" * Stop CPU monitoring on DUT...")
stop_cpu_monitoring()
##################################################
lprint(" * Stopping packet stream...")
tester.stop_traffic(config.tester_interface)
time.sleep(1)
##################################################
lprint(" * Stop packet receiver on VM...")
# Due to a change in OVS we need to get the vhost stats before we
# bring it down.
vp_tx_end, vp_tx_drop_end = get_of_port_packet_stats(
of_interfaces[config.virtual_interface])[0:2]
stop_traffic_rx_on_vm(config.dut_vm_address)
##################################################
lprint(" * Gathering statistics...")
tester.take_tx_statistics_snapshot(config.tester_interface)
full_tx_stats = tester.get_tx_statistics_snapshots(
config.tester_interface)
slogger.debug(" full_tx_stats={}".format(full_tx_stats))
pp_rx_end = get_of_port_packet_stats(
of_interfaces[config.physical_interface])[2]
pp_rx = pp_rx_end - pp_rx_start
vp_tx = vp_tx_end - vp_tx_start
vp_tx_drop = vp_tx_drop_end - vp_tx_drop_start
vm_pkts_sec = get_traffic_rx_stats_from_vm(config.dut_vm_address)
packets_tx = full_tx_stats[sorted(
full_tx_stats.keys())[-1]]['pt_total']['packets']
lprint(" - Packets send by Tester {:,}".format(packets_tx))
lprint(" - Packets received by physical port {:,} [Lost {:,}]".
format(pp_rx, packets_tx - pp_rx))
lprint(" - Packets received by virtual port {:,} [Lost {:,}]".
format(vp_tx, pp_rx - vp_tx))
lprint(" - Packets dropped by virtual port {:,}".
format(vp_tx_drop))
lprint(" ! Result, average: {:,} pps".format(vm_pkts_sec))
p2v_results.append(vm_pkts_sec)
cpu_results.append(get_cpu_monitoring_stats())
##################################################
lprint(" * Restoring state for next test...")
tester.unconfigure_traffic_stream(config.tester_interface)
# dut_shell.dut_exec('sh -c "ovs-ofctl del-flows {0} && '
# 'ovs-appctl dpctl/del-flows"'.\
# format(config.bridge_name),
# die_on_error=True)
##################################################
lprint("- [TEST: {0}(flows={1}, packet_size={2})] END".
format(inspect.currentframe().f_code.co_name,
nr_of_flows, packet_size))
create_single_graph(packet_sizes, p2v_results,
"Packet size", "Packets/second",
"Physical to Virtual with {} {} flows{}".
format(nr_of_flows, get_flow_type_short(),
get_traffic_rate_str()),
"test_p2v_{}_{}".
format(nr_of_flows, get_flow_type_name()),
phy_speed, cpu_utilization=cpu_results)
return p2v_results, cpu_results
#
# Run simple traffic test Physical to Physical
#
def test_p2p(nr_of_flows, packet_sizes):
p2p_results = list()
cpu_results = list()
for packet_size in packet_sizes:
##################################################
lprint("- [TEST: {0}(flows={1}, packet_size={2}, rate={3:.3f}%))]"
" START".format(inspect.currentframe().f_code.co_name,
nr_of_flows, packet_size, config.traffic_rate))
##################################################
lprint(" * Create OVS OpenFlow rules...")
create_ovs_of_rules(nr_of_flows,
of_interfaces[config.physical_interface],
of_interfaces[config.second_physical_interface])
##################################################
lprint(" * Initializing packet generation...")
tester.configure_traffic_stream(
config.tester_interface,
get_traffic_generator_flow(),
nr_of_flows, packet_size,
traffic_dst_mac=config.dst_mac_address,
traffic_src_mac=config.src_mac_address,
percentage=config.traffic_rate * 10000,
random_payload=config.payload_packet_random)
##################################################
if config.warm_up:
lprint(" * Doing flow table warm-up...")
tester.start_traffic(config.tester_interface)
warm_up_done = warm_up_verify(nr_of_flows, config.warm_up_timeout)
tester.stop_traffic(config.tester_interface)
if not warm_up_done and not config.warm_up_no_fail:
sys.exit(-1)
##################################################
lprint(" * Clear all statistics...")
tester.clear_statistics(config.tester_interface)
tester.clear_statistics(config.second_tester_interface)
pp_tx_start, pp_tx_drop_start, pp_rx_start, pp_rx_drop_start \
= get_of_port_packet_stats(
of_interfaces[config.physical_interface])
rpp_tx_start, rpp_tx_drop_start, rpp_rx_start, rpp_rx_drop_start \
= get_of_port_packet_stats(
of_interfaces[config.second_physical_interface])
##################################################
lprint(" * Start CPU monitoring on DUT...")
start_cpu_monitoring()
##################################################
lprint(" * Start packet generation for {0} seconds...".
format(config.run_time))
tester.start_traffic(config.tester_interface)
for i in range(1, config.run_time):
time.sleep(1)
tester.take_rx_statistics_snapshot(config.second_tester_interface)
##################################################
lprint(" * Stop CPU monitoring on DUT...")
stop_cpu_monitoring()
##################################################
lprint(" * Stopping packet stream...")
tester.stop_traffic(config.tester_interface)
time.sleep(1)
##################################################
lprint(" * Gathering statistics...")
tester.take_tx_statistics_snapshot(config.tester_interface)
tester.take_rx_statistics_snapshot(config.second_tester_interface)
full_tx_stats = tester.get_tx_statistics_snapshots(
config.tester_interface)
full_rx_stats = tester.get_rx_statistics_snapshots(
config.second_tester_interface)
slogger.debug(" full_tx_stats={}".format(full_tx_stats))
slogger.debug(" full_rx_stats={}".format(full_rx_stats))
pp_tx_end, pp_tx_drop_end, pp_rx_end, pp_rx_drop_end \
= get_of_port_packet_stats(
of_interfaces[config.physical_interface])
rpp_tx_end, rpp_tx_drop_end, rpp_rx_end, rpp_rx_drop_end \
= get_of_port_packet_stats(
of_interfaces[config.second_physical_interface])
pp_rx = pp_rx_end - pp_rx_start
pp_rx_drop = pp_rx_drop_end - pp_rx_drop_start
rpp_tx = rpp_tx_end - rpp_tx_start
rpp_tx_drop = rpp_tx_drop_end - rpp_tx_drop_start
packets_tx = full_tx_stats[sorted(
full_tx_stats.keys())[-1]]['pt_total']['packets']
packets_rx = full_rx_stats[sorted(
full_rx_stats.keys())[-1]]['pr_total']['packets']
lprint(" - Packets send by Tester : {:-20,}".format(
packets_tx))
lprint(" - Packets received by physical : {:-20,} [Lost {:,}, "
"Drop {:,}]".format(pp_rx, packets_tx - pp_rx, pp_rx_drop))
lprint(" - Packets send by second physical: {:-20,} [Lost {:,}, "
"Drop {:,}]".format(rpp_tx, pp_rx - rpp_tx, rpp_tx_drop))
lprint(" - Packets received by Tester : {:-20,} [Lost {:,}]".
format(packets_rx, rpp_tx - packets_rx))
rx_pkts_sec = get_packets_per_second_from_traffic_generator_rx_stats(
full_rx_stats)
lprint(" ! Result, average: {:,} pps".format(rx_pkts_sec))
p2p_results.append(rx_pkts_sec)
cpu_results.append(get_cpu_monitoring_stats())
##################################################
lprint(" * Restoring state for next test...")
tester.unconfigure_traffic_stream(config.tester_interface)
# dut_shell.dut_exec('sh -c "ovs-ofctl del-flows {0} && '
# 'ovs-appctl dpctl/del-flows"'.\
# format(config.bridge_name),
# die_on_error=True)
##################################################
lprint("- [TEST: {0}(flows={1}, packet_size={2})] END".
format(inspect.currentframe().f_code.co_name,
nr_of_flows, packet_size))
create_single_graph(packet_sizes, p2p_results,
"Packet size", "Packets/second",
"Physical to Physical with {} {} flows{}".
format(nr_of_flows, get_flow_type_short(),
get_traffic_rate_str()),
"test_p2p_{}_{}".
format(nr_of_flows, get_flow_type_name()),
phy_speed, cpu_utilization=cpu_results)
return p2p_results, cpu_results
#
# Run simple traffic test Physical loopback
#
def test_p_single_packet_size(nr_of_flows, packet_size, **kwargs):
decrease_rate = kwargs.get("decrease_rate", 0)
assert (decrease_rate >= 0 or decrease_rate < 100)
decrease_rate *= 10000
results = dict()
##################################################
lprint("- [TEST: {0}(flows={1}, packet_size={2}, rate={3:.2f}%)] START".
format(inspect.currentframe().f_code.co_name,
nr_of_flows, packet_size, (1000000 - decrease_rate) / 10000))
##################################################
lprint(" * Create OVS OpenFlow rules...")
create_ovs_of_rules(nr_of_flows,
of_interfaces[config.physical_interface],
"IN_PORT")
##################################################
lprint(" * Initializing packet generation...")
tester.configure_traffic_stream(config.tester_interface,
get_traffic_generator_flow(),
nr_of_flows, packet_size,
traffic_dst_mac=config.dst_mac_address,
traffic_src_mac=config.src_mac_address,
percentage=1000000 - decrease_rate,
random_payload=config.payload_packet_random
)
##################################################
if config.warm_up:
lprint(" * Doing flow table warm-up...")
tester.start_traffic(config.tester_interface)
warm_up_done = warm_up_verify(nr_of_flows,
config.warm_up_timeout)
tester.stop_traffic(config.tester_interface)
if not warm_up_done and not config.warm_up_no_fail:
sys.exit(-1)
##################################################
lprint(" * Clear all statistics...")
tester.clear_statistics(config.tester_interface)
pp_tx_start, pp_tx_drop_start, pp_rx_start, pp_rx_drop_start \
= get_of_port_packet_stats(of_interfaces[config.physical_interface])
##################################################
lprint(" * Start CPU monitoring on DUT...")
start_cpu_monitoring()
##################################################
lprint(" * Start packet generation for {0} seconds...".format(
config.run_time))
tester.start_traffic(config.tester_interface)
for i in range(1, config.run_time):
time.sleep(1)
tester.take_rx_statistics_snapshot(config.tester_interface)
##################################################
lprint(" * Stop CPU monitoring on DUT...")
stop_cpu_monitoring()
##################################################
lprint(" * Stopping packet stream...")
tester.stop_traffic(config.tester_interface)
time.sleep(1)
##################################################
lprint(" * Gathering statistics...")
tester.take_statistics_snapshot(config.tester_interface)
full_tx_stats = tester.get_tx_statistics_snapshots(config.tester_interface)
full_rx_stats = tester.get_rx_statistics_snapshots(config.tester_interface)
slogger.debug(" full_tx_stats={}".format(full_tx_stats))
slogger.debug(" full_rx_stats={}".format(full_rx_stats))
pp_tx_end, pp_tx_drop_end, pp_rx_end, pp_rx_drop_end \
= get_of_port_packet_stats(of_interfaces[config.physical_interface])
pp_rx = pp_rx_end - pp_rx_start
pp_tx = pp_tx_end - pp_tx_start
pp_rx_drop = pp_rx_drop_end - pp_rx_drop_start
pp_tx_drop = pp_tx_drop_end - pp_tx_drop_start
packets_tx = full_tx_stats[sorted(
full_tx_stats.keys())[-1]]['pt_total']['packets']
packets_rx = full_rx_stats[sorted(
full_rx_stats.keys())[-1]]['pr_total']['packets']
lprint(" - Packets send by Tester : {:-20,}".format(packets_tx))
lprint(" - Packets received by physical: {:-20,} [Lost {:,}, Drop "
"{:,}]".format(pp_rx, packets_tx - pp_rx, pp_rx_drop))
lprint(" - Packets send by physical : {:-20,} [Lost {:,}, Drop "
"{:,}]".format(pp_tx, pp_rx - pp_tx, pp_tx_drop))
lprint(" - Packets received by Tester : {:-20,} [Lost {:,}]".
format(packets_rx, pp_tx - packets_rx))
rx_pkts_sec = get_packets_per_second_from_traffic_generator_rx_stats(
full_rx_stats)
lprint(" ! Result, average: {:,} pps".format(rx_pkts_sec))
##################################################
lprint(" * Restoring state for next test...")
tester.unconfigure_traffic_stream(config.tester_interface)
# dut_shell.dut_exec('sh -c "ovs-ofctl del-flows {0} && '
# 'ovs-appctl dpctl/del-flows"'.\
# format(config.bridge_name),
# die_on_error=True)
##################################################
lprint("- [TEST: {0}(flows={1}, packet_size={2})] END".
format(inspect.currentframe().f_code.co_name,
nr_of_flows, packet_size))
results["cpu_stats"] = get_cpu_monitoring_stats()
results["rx_packets_second"] = rx_pkts_sec
results["total_tx_pkts"] = packets_tx
results["total_rx_pkts"] = packets_rx
return results
#
# Run simple traffic test Physical to VM back to Physical
#
def test_p(nr_of_flows, packet_sizes):
p_results = list()
cpu_results = list()