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-rwxr-xr-xVNFs/DPPD-PROX/helper-scripts/testvRouter/characterize_vRouter_4_ports.py681
1 files changed, 681 insertions, 0 deletions
diff --git a/VNFs/DPPD-PROX/helper-scripts/testvRouter/characterize_vRouter_4_ports.py b/VNFs/DPPD-PROX/helper-scripts/testvRouter/characterize_vRouter_4_ports.py
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index 00000000..95eb9811
--- /dev/null
+++ b/VNFs/DPPD-PROX/helper-scripts/testvRouter/characterize_vRouter_4_ports.py
@@ -0,0 +1,681 @@
+#!/bin/env python
+
+##
+## Copyright (c) 2010-2017 Intel Corporation
+##
+## 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.
+##
+
+import socket
+import sys
+import os
+from time import *
+from datetime import datetime
+from optparse import OptionParser
+import time
+from remote_system import *
+from math import log
+
+# General parameters
+accuracy = 0.1 # in percent of line rate
+max_dropped = 0.001 # in percent
+all_pkt_size = [64,128,256,512,1024,1280,1518]
+#all_pkt_size = [64]
+
+# vRouter parameters, in case commands must be sent
+vRouter_host = "192.168.1.96"
+
+# Stear parameters
+step_time = 0.01 # in seconds
+step_delta = 0.025 # in percent of line rate
+
+# Use case dependent parameters
+##### Use case 0: influence of number of routes and next hops #####
+max_number_next_hops = 256 # Maximum number of next-hops per interface
+max_number_routes = 8192 # Maximum number of routes per interface
+max_number_addresses_local_network = 262144
+
+##### Use case 1: packet loss and latency #####
+low_steps_delta_for_loss = 0.01 # Use increment of 0.01% from 0 to low_steps
+medium_steps_delta_for_loss = 0.1 # Use increment of 0.1% from low_steps to medium_steps
+normal_steps_delta_for_loss = 1.0 # Use increment of 1% from medium_steps till 100%
+low_steps = 0.1
+medium_steps = 1.0
+
+# Prox parameters
+tx_port0 = [19,27,55,63]
+tx_port1 = [20,28,56,64]
+tx_port2 = [21,29,57,65]
+tx_port3 = [22,30,58,66]
+tx_port4 = []
+tx_port5 = []
+tx_port6 = []
+tx_port7 = []
+tx_task = 0
+
+all_rx_cores = [23,24,25,26]
+rx_lat_cores = [23,24,25,26]
+rx_task = 1
+
+# Some variables, do not change
+
+# Program arguments
+parser = OptionParser()
+parser.add_option("-d", "--duration", dest="test_duration", help="Duration of each steps", metavar="integer", default=10)
+parser.add_option("-s", "--speed", dest="init_speed", help="Initial speed", metavar="integer", default=100)
+parser.add_option("-u", "--use-case", dest="use_case", help="Use Case Number", metavar="integer", default=0)
+parser.add_option("-r", "--run", dest="run", help="Run test", metavar="integer", default=0)
+parser.add_option("-c", "--configure", dest="configure", help="Configure Test", metavar="integer", default=0)
+(options, args) = parser.parse_args()
+
+init_speed = int(options.init_speed)
+test_duration = int(options.test_duration)
+use_case = int(options.use_case)
+configure = int(options.configure)
+run = int(options.run)
+
+nb_cores_per_interface = len(tx_port0)
+max_speed = (100.0/nb_cores_per_interface)
+init_speed = (init_speed * 1.0/nb_cores_per_interface)
+accuracy = (accuracy * 1.0/nb_cores_per_interface)
+normal_steps_delta_for_loss = (normal_steps_delta_for_loss /nb_cores_per_interface)
+medium_steps_delta_for_loss = (medium_steps_delta_for_loss /nb_cores_per_interface)
+low_steps_delta_for_loss = (low_steps_delta_for_loss /nb_cores_per_interface)
+medium_steps = (medium_steps /nb_cores_per_interface)
+low_steps = (low_steps /nb_cores_per_interface)
+
+max_dropped = max_dropped / 100
+
+def to_str(arr):
+ ret = ""
+ first = 1;
+ for a in arr:
+ if (first == 0):
+ ret += ","
+
+ ret += str(a)
+ first = 0;
+ return ret;
+
+tx_cores = tx_port0 + tx_port1 + tx_port2 + tx_port3 + tx_port4 + tx_port5 + tx_port6 + tx_port7
+
+def send_all_pkt_size(cores, pkt_size):
+ for c in cores:
+ sock.sendall("pkt_size " + str(c) + " 0 " + str(pkt_size) + "\n");
+
+def send_all_value(cores, offset, value, len):
+ for c in cores:
+ sock.sendall("set value " + str(c) + " 0 " + str(offset) + " " + str(value) + " " + str(len)+ "\n");
+
+def send_all_random(cores, offset, rand_str, len):
+ for c in cores:
+ sock.sendall("set random " + str(c) + " 0 " + str(offset) + " " + str(rand_str) + " " + str(len)+ "\n");
+ #print("set random " + str(c) + " 0 " + str(offset) + " " + str(rand_str) + " " + str(len)+ "\n");
+
+def send_all_speed(cores, speed_perc):
+ for c in cores:
+ sock.sendall("speed " + str(c) + " 0 " + str(speed_perc) + "\n");
+
+def send_reset_random():
+ sock.sendall("reset randoms all" + "\n");
+
+def send_reset_value():
+ sock.sendall("reset values all" + "\n");
+
+def rx_stats(tx_cores, tx_task, rx_cores, rx_task):
+ rx = tx = drop = tsc = tsc_hs = ierrors = 0
+ for e in tx_cores:
+ sock.sendall("core stats " + str(e) + " " + str(tx_task) + "\n")
+ recv = recv_once()
+ rx += int(recv.split(",")[0])
+ tx += int(recv.split(",")[1])
+ drop += int(recv.split(",")[2])
+ tsc = int(recv.split(",")[3])
+ tsc_hz = int(recv.split(",")[4])
+ for e in rx_cores:
+ sock.sendall("core stats " + str(e) + " " + str(rx_task) + "\n")
+ recv = recv_once()
+ rx += int(recv.split(",")[0])
+ tx += int(recv.split(",")[1])
+ drop += int(recv.split(",")[2])
+ tsc = int(recv.split(",")[3])
+ tsc_hz = int(recv.split(",")[4])
+ # Also get the ierrors as generators might be the bottleneck...
+ sock.sendall("tot ierrors tot\n")
+ recv = recv_once()
+ ierrors += int(recv.split(",")[0])
+ rx+=ierrors
+ return rx,tx,drop,tsc,tsc_hz
+
+def lat_stats(cores,task):
+ lat_min = [0 for e in range(127)]
+ lat_max = [0 for e in range(127)]
+ lat_avg = [0 for e in range(127)]
+ for e in cores:
+ sock.sendall("lat stats " + str(e) + " " + str(task) + " " + "\n")
+ recv = recv_once()
+ lat_min[e] = int(recv.split(",")[0])
+ lat_max[e] = int(recv.split(",")[1])
+ lat_avg[e] = int(recv.split(",")[2])
+ return lat_min, lat_max, lat_avg
+
+def recv_once():
+ ret_str = "";
+ done = 0;
+ while done == 0:
+ dat = sock.recv(256);
+ i = 0;
+ while(i < len(dat)):
+ if (dat[i] == '\n'):
+ done = 1
+ else:
+ ret_str += dat[i];
+ i = i + 1;
+ return ret_str
+
+def wait_vRouter_restarted(host):
+ while (1):
+ ret = os.system("ping " + host + " -c 1 > /dev/null")
+ if ret == 0:
+ print "still up..."
+ else:
+ break;
+ sleep(1)
+
+ while (1):
+ ret = os.system("ping " + host + " -c 1 > /dev/null")
+ if (ret == 0):
+ print "UP"
+ break;
+ else:
+ print "still down..."
+ sleep(1)
+
+def reload_vRouter_config(config):
+ print "connecting to vRouter...and copying " + str(config)
+ sut = remote_system("root", vRouter_host)
+ cmd = "cp /config/prox/" + str(config) + " /config/config.boot"
+ sut.run(cmd)
+ print "Rebooting system at " + str(datetime.now().time())
+ sut.run_forked("reboot")
+ sleep(5)
+ wait_vRouter_restarted(vRouter_host)
+ print "Waiting for last startup scripts to start..."
+ last_script = "l2tp"
+ while(1):
+ dmesg = str(sut.run("dmesg"))
+ if last_script in dmesg:
+ print "found l2tp - UP"
+ break;
+ sleep(1)
+ print "vRouter started - waiting 5 last seconds before starting test"
+ sleep(5)
+ print datetime.now().time()
+
+def set_pkt_sizes(tx_cores, p):
+ send_all_pkt_size(tx_cores, p-4)
+ # For all cores, need to adapt IP Length (byte 16) and UDP Length (byte 38) to pkt size
+ send_all_value(tx_cores, 16, p - 18, 2) # 14 for MAC (12) EthType (2)
+ send_all_value(tx_cores, 38, p - 38, 2) # 34 for MAC (12) EthType (2) IP (20)
+
+def run_measure_throughput(speed):
+ done = 0
+ # Intialize tests by stopping cores and resetting stats
+ step=0
+ steps_done = 0
+ sock.sendall("start " + to_str(all_rx_cores) + "\n")
+ sleep(2)
+ sock.sendall("stop " + to_str(all_rx_cores) + "\n")
+ sock.sendall("reset stats\n")
+ print "Speed = " + str(speed * nb_cores_per_interface)
+ sleep(1);
+
+ send_all_speed(tx_cores, step);
+
+ # Now starting the steps. First go to the common speed, then increase steps for the faster one.
+ sock.sendall("start " + to_str(tx_cores) + "," + to_str(rx_lat_cores) + "\n")
+ while (steps_done == 0):
+ sleep(step_time)
+ if (step + step_delta <= speed):
+ step+=step_delta
+ else:
+ steps_done = 1;
+ send_all_speed(tx_cores, step)
+
+ # Steps are now OK. Set speed
+ send_all_speed(tx_cores, speed);
+ sleep(2);
+
+ # Getting statistics to calculate PPS at right speed....
+ rx_pps_beg,tx_pps_beg,drop_pps_beg,tsc_pps_beg,tsc_hz = rx_stats(tx_cores, tx_task, all_rx_cores, rx_task);
+ sleep(test_duration);
+
+ # Collect statistics before test stops...and stop the test. Important to get stats before stopping as stops take some time...
+ rx_pps_end,tx_pps_end,drop_pps_end,tsc_pps_end,tsc_hz = rx_stats(tx_cores, tx_task, all_rx_cores, rx_task);
+ lat_min,lat_max,lat_avg = lat_stats(rx_lat_cores, rx_task)
+ sock.sendall("stop " + "," + to_str(tx_cores) + "\n")
+ sock.sendall("start " + to_str(all_rx_cores) + "\n")
+ sleep(3);
+ sock.sendall("stop " + to_str(all_rx_cores) + "\n")
+
+ rx_end, tx_end,drop_end,tsc_end,tsc_hz = rx_stats(tx_cores, tx_task, all_rx_cores, rx_task);
+ rx = rx_pps_end - rx_pps_beg
+ tsc = tsc_pps_end - tsc_pps_beg
+ mpps = rx / (tsc/float(tsc_hz)) / 1000000
+ tx = tx_pps_end - tx_pps_beg
+ tx_mpps = tx / (tsc/float(tsc_hz)) / 1000000
+
+ #print "Runtime = " + str((tsc)/float(tsc_hz));
+ if (tx_end == 0):
+ dropped_tot = tx_end - rx_end
+ dropped_pct = 0
+ else:
+ dropped_tot = tx_end - rx_end
+ dropped_pct = ((dropped_tot) * 1.0) / tx_end
+
+ if (dropped_tot > 0):
+ if (dropped_pct >= max_dropped):
+ print "** FAILED **: lost " + str(100*dropped_pct) + "% packets RX = " + str(rx_end) + " TX = " + str(tx_end) + " DROPPED = " + str(tx_end - rx_end)
+ else:
+ print "OK but lost " + str(100*dropped_pct) + "% packets RX = " + str(rx_end) + " TX = " + str(tx_end) + " DROPPED = " + str(tx_end - rx_end)
+ else:
+ if (dropped_tot < 0):
+ print "Something wrong happened - received more packets than transmitted"
+ else:
+ print "** OK **: RX = " + str(rx_end) + " TX = " + str(tx_end) + " DROPPED = " + str(tx_end - rx_end)
+ print "MPPS = " + str(mpps)
+ print "===================================================="
+ return dropped_pct, mpps, tx_mpps, dropped_tot,lat_min,lat_max,lat_avg
+
+def write_results(f, pkt_size, tx_mpps, mpps, dropped_pct, dropped_tot, speed, nb_cores_per_interface, number_next_hops, number_routes, traffic, lat_min, lat_max, lat_avg):
+ f.write(str(pkt_size) + "; " + str(tx_mpps) + "; " + str(mpps) + "; " + str(100 * dropped_pct) + "; " + str(dropped_tot) + "; " + str(speed * nb_cores_per_interface) + "; " + str(number_next_hops) + "; " + str(number_routes) + "; " + str(traffic) + "; ")
+ for e in rx_lat_cores:
+ f.write(str(lat_min[e]) + "; " + str(lat_max[e]) + "; " + str(lat_avg[e]) + "; ")
+ f.write("\n");
+ f.flush()
+
+def run_loss_graph(number_next_hops, number_routes, pkt_size, traffic):
+ speed = init_speed * 1.0
+ done = 0;
+ while done == 0:
+ dropped_pct, mpps, tx_mpps, dropped_tot,lat_min,lat_max,lat_avg = run_measure_throughput(speed)
+ write_results(f, pkt_size, tx_mpps, mpps, dropped_pct, dropped_tot, speed, nb_cores_per_interface, number_next_hops, number_routes, traffic, lat_min, lat_max, lat_avg);
+ if (speed <= low_steps_delta_for_loss):
+ done = 1
+ return
+ if (speed >= (medium_steps+normal_steps_delta_for_loss)):
+ speed -= normal_steps_delta_for_loss
+ else:
+ if (speed >= (low_steps+medium_steps_delta_for_loss)):
+ speed -= medium_steps_delta_for_loss
+ else:
+ speed -= low_steps_delta_for_loss
+
+def run_dicho_search(number_next_hops, number_routes, pkt_size, traffic):
+ previous_success_speed = 0.0
+ previous_error_speed = max_speed
+ speed = init_speed * 1.0
+ done = 0;
+ good_tx_mpps = 0
+ good_mpps = 0
+ good_dropped_pct = 0
+ good_dropped_tot = 0
+ good_speed = 0
+ good_lat_min = [0 for e in range(127)]
+ good_lat_max = [0 for e in range(127)]
+ good_lat_avg = [0 for e in range(127)]
+
+ while done == 0:
+ dropped_pct, mpps, tx_mpps, dropped_tot,lat_min,lat_max,lat_avg = run_measure_throughput(speed)
+ if ((dropped_tot >= 0) and (dropped_pct <= max_dropped)):
+ good_tx_mpps = tx_mpps
+ good_mpps = mpps
+ good_dropped_pct = dropped_pct
+ good_dropped_tot = dropped_tot
+ good_speed = speed
+ good_lat_min = lat_min
+ good_lat_max = lat_max
+ good_lat_avg = lat_avg
+ write_results(f, pkt_size, tx_mpps, mpps, dropped_pct, dropped_tot, speed, nb_cores_per_interface, number_next_hops, number_routes, traffic, lat_min, lat_max, lat_avg);
+ write_results(f_all, pkt_size, tx_mpps, mpps, dropped_pct, dropped_tot, speed, nb_cores_per_interface, number_next_hops, number_routes, traffic, lat_min, lat_max, lat_avg);
+ else:
+ write_results(f_all, pkt_size, tx_mpps, mpps, dropped_pct, dropped_tot, speed, nb_cores_per_interface, number_next_hops, number_routes, traffic, lat_min, lat_max, lat_avg);
+
+ if ((speed == max_speed) and (dropped_pct <= max_dropped)):
+ write_results(f_minimal, pkt_size, tx_mpps, mpps, dropped_pct, dropped_tot, speed, nb_cores_per_interface, number_next_hops, number_routes, traffic, lat_min, lat_max, lat_avg);
+ done = 1
+ if (dropped_pct <= max_dropped):
+ previous_success_speed = speed
+ if (speed > max_speed - accuracy):
+ speed = max_speed
+ else:
+ if (previous_error_speed - speed < accuracy):
+ write_results(f_minimal, pkt_size, good_tx_mpps, good_mpps, good_dropped_pct, good_dropped_tot, good_speed, nb_cores_per_interface, number_next_hops, number_routes, traffic, good_lat_min, good_lat_max, good_lat_avg);
+ done = 1
+ else:
+ speed = speed + (previous_error_speed - speed)/2;
+ else:
+ previous_error_speed = speed
+ if (speed - previous_success_speed < accuracy):
+ write_results(f_minimal, pkt_size, good_tx_mpps, good_mpps, good_dropped_pct, good_dropped_tot, good_speed, nb_cores_per_interface, number_next_hops, number_routes, traffic, good_lat_min, good_lat_max, good_lat_avg);
+ done = 1
+ else:
+ speed = speed - (speed - previous_success_speed) / 2;
+
+
+def set_destination_ip(use_case, nb_destinations, traffic):
+ # minimmum 8 routes i.e. 1 per interface
+ # Destination addressese: "00XXXYY1" "Z00ZZ0ZZ" "AA0AA0AA" "BBBBBB10"
+ # Where X = interface id. Starting with 00 to be in class A and skipping 0.x.y.z and 127.x.y.z
+ # Y, Z and A = additional routes
+ # B = IP in routes. 10 to avoid x.y.z.0 and x.y.z.255
+ # Gaps in A and B to void "too good" distributions e.g. using LPM and
+ # First changing Y
+
+ mask = ""
+ for i in range (2):
+ mask = str(mask)+"0"
+ end_mask = ""
+ if (use_case != 2):
+ end_mask = "XXXXXX10" # Last 8 bits
+
+ if (nb_destinations == 1):
+ end_mask = "0010000000000000000" + str(end_mask)
+ if (nb_destinations == 2):
+ end_mask = "X010000000000000000" + str(end_mask)
+ if (nb_destinations == 4):
+ end_mask = "XX10000000000000000" + str(end_mask)
+ if (nb_destinations == 8):
+ end_mask = "XX1X000000000000000" + str(end_mask)
+ elif (nb_destinations == 16):
+ end_mask = "XX1X00X000000000000" + str(end_mask)
+ elif (nb_destinations == 32):
+ end_mask = "XX1X00XX00000000000" + str(end_mask)
+ elif (nb_destinations == 64):
+ end_mask = "XX1X00XX0X000000000" + str(end_mask)
+ elif (nb_destinations == 128):
+ end_mask = "XX1X00XX0XX00000000" + str(end_mask)
+ elif (nb_destinations == 256):
+ end_mask = "XX1X00XX0XXX0000000" + str(end_mask)
+ elif (nb_destinations == 512):
+ end_mask = "XX1X00XX0XXXX000000" + str(end_mask)
+ elif (nb_destinations == 1024):
+ end_mask = "XX1X00XX0XXXX0X0000" + str(end_mask)
+ elif (nb_destinations == 2048):
+ end_mask = "XX1X00XX0XXXX0XX000" + str(end_mask)
+ elif (nb_destinations == 4096):
+ end_mask = "XX1X00XX0XXXX0XX0X0" + str(end_mask)
+ elif (nb_destinations == 8192):
+ end_mask = "XX1X00XX0XXXX0XX0XX" + str(end_mask)
+ else:
+ if (nb_destinations <= 64 * 1):
+ end_mask = "0010000000000000000"
+ n_dest = int(log(nb_destinations, 2))
+ for i in range (n_dest):
+ end_mask = str(end_mask) + "X"
+ for i in range (6 - n_dest):
+ end_mask = str(end_mask) + "0"
+ end_mask = str(end_mask) + "10"
+ else:
+ end_mask = "XXXXXX10" # Last 8 bits
+
+ if (nb_destinations == 64 * 2):
+ end_mask = "001X000000000000000" + str(end_mask)
+ elif (nb_destinations == 64 * 4):
+ end_mask = "001X00X000000000000" + str(end_mask)
+ elif (nb_destinations == 64 * 8):
+ end_mask = "001X00XX00000000000" + str(end_mask)
+ elif (nb_destinations == 64 * 16):
+ end_mask = "001X00XX0X000000000" + str(end_mask)
+ elif (nb_destinations == 64 * 32):
+ end_mask = "001X00XX0XX00000000" + str(end_mask)
+ elif (nb_destinations == 64 * 64):
+ end_mask = "001X00XX0XXX0000000" + str(end_mask)
+ elif (nb_destinations == 64 * 128):
+ end_mask = "001X00XX0XXXX000000" + str(end_mask)
+ elif (nb_destinations == 64 * 256):
+ end_mask = "001X00XX0XXXX0X0000" + str(end_mask)
+ elif (nb_destinations == 64 * 512):
+ end_mask = "001X00XX0XXXX0XX000" + str(end_mask)
+ elif (nb_destinations == 64 * 1024):
+ end_mask = "001X00XX0XXXX0XX0X0" + str(end_mask)
+ elif (nb_destinations == 64 * 2048):
+ end_mask = "001X00XX0XXXX0XX0XX" + str(end_mask)
+ elif (nb_destinations == 64 * 4096):
+ end_mask = "001XX0XX0XXXX0XX0XX" + str(end_mask)
+ elif (nb_destinations == 64 * 8192):
+ end_mask = "001XXXXX0XXXX0XX0XX" + str(end_mask)
+ elif (nb_destinations == 64 * 16384):
+ end_mask = "001XXXXXXXXXX0XX0XX" + str(end_mask)
+ elif (nb_destinations == 64 * 32768):
+ end_mask = "001XXXXXXXXXXXXX0XX" + str(end_mask)
+ elif (nb_destinations == 64 * 65536):
+ end_mask = "001XXXXXXXXXXXXXXXX" + str(end_mask)
+
+ if (traffic == 0): # One-to-one. From odd interface to even interface and vice versa, no QPI cross
+ mask1 = str(mask) + "001" + str(end_mask)
+ mask2 = str(mask) + "000" + str(end_mask)
+ mask3 = str(mask) + "011" + str(end_mask)
+ mask4 = str(mask) + "010" + str(end_mask)
+ mask5 = str(mask) + "101" + str(end_mask)
+ mask6 = str(mask) + "100" + str(end_mask)
+ mask7 = str(mask) + "111" + str(end_mask)
+ mask8 = str(mask) + "110" + str(end_mask)
+
+ elif (traffic == 1): # Full mesh within QPI (i.e. 1 to 4)
+ mask1 = str(mask) + "0XX" + str(end_mask)
+ mask2 = str(mask) + "0XX" + str(end_mask)
+ mask3 = str(mask) + "0XX" + str(end_mask)
+ mask4 = str(mask) + "0XX" + str(end_mask)
+ mask5 = str(mask) + "1XX" + str(end_mask)
+ mask6 = str(mask) + "1XX" + str(end_mask)
+ mask7 = str(mask) + "1XX" + str(end_mask)
+ mask8 = str(mask) + "1XX" + str(end_mask)
+
+ elif (traffic == 2): # One to one, crossing QPI (100% QPI)
+ mask1 = str(mask) + "100" + str(end_mask)
+ mask2 = str(mask) + "101" + str(end_mask)
+ mask3 = str(mask) + "110" + str(end_mask)
+ mask4 = str(mask) + "111" + str(end_mask)
+ mask5 = str(mask) + "000" + str(end_mask)
+ mask6 = str(mask) + "001" + str(end_mask)
+ mask7 = str(mask) + "010" + str(end_mask)
+ mask8 = str(mask) + "011" + str(end_mask)
+
+ elif (traffic == 3): # 1 to 4 crossing QPI (100% QPI)
+ mask1 = str(mask) + "1XX" + str(end_mask)
+ mask2 = str(mask) + "1XX" + str(end_mask)
+ mask3 = str(mask) + "1XX" + str(end_mask)
+ mask4 = str(mask) + "1XX" + str(end_mask)
+ mask5 = str(mask) + "0XX" + str(end_mask)
+ mask6 = str(mask) + "0XX" + str(end_mask)
+ mask7 = str(mask) + "0XX" + str(end_mask)
+ mask8 = str(mask) + "0XX" + str(end_mask)
+
+ elif (traffic == 4): # 1 to 4 (50% QPI)
+ mask1 = str(mask) + "XX1" + str(end_mask)
+ mask2 = str(mask) + "XX0" + str(end_mask)
+ mask3 = str(mask) + "XX1" + str(end_mask)
+ mask4 = str(mask) + "XX0" + str(end_mask)
+ mask5 = str(mask) + "XX1" + str(end_mask)
+ mask6 = str(mask) + "XX0" + str(end_mask)
+ mask7 = str(mask) + "XX1" + str(end_mask)
+ mask8 = str(mask) + "XX0" + str(end_mask)
+
+ elif (traffic == 5): # Full mesh (50% QPI)
+ mask1 = str(mask) + "XXX" + str(end_mask)
+ mask2 = str(mask) + "XXX" + str(end_mask)
+ mask3 = str(mask) + "XXX" + str(end_mask)
+ mask4 = str(mask) + "XXX" + str(end_mask)
+ mask5 = str(mask) + "XXX" + str(end_mask)
+ mask6 = str(mask) + "XXX" + str(end_mask)
+ mask7 = str(mask) + "XXX" + str(end_mask)
+ mask8 = str(mask) + "XXX" + str(end_mask)
+
+ for c in tx_port0:
+ send_all_random([c], 30, mask1, 4)
+ for c in tx_port1:
+ send_all_random([c], 30, mask2, 4)
+ for c in tx_port2:
+ send_all_random([c], 30, mask3, 4)
+ for c in tx_port3:
+ send_all_random([c], 30, mask4, 4)
+ for c in tx_port4:
+ send_all_random([c], 30, mask5, 4)
+ for c in tx_port5:
+ send_all_random([c], 30, mask6, 4)
+ for c in tx_port6:
+ send_all_random([c], 30, mask7, 4)
+ for c in tx_port7:
+ send_all_random([c], 30, mask8, 4)
+ for c in tx_cores:
+ send_all_random([c], 34, "0XXXXXXXXXXXXX10", 2)
+ send_all_random([c], 36, "0XXXXXXXXXXXXX10", 2)
+
+#========================================================================
+class TestDefinition():
+ "Stores test parameters"
+ def __init__(self, use_case, next_hops, number_routes, pkt_size, traffic, reload):
+ self.use_case = use_case
+ self.next_hops = next_hops
+ self.number_routes = number_routes
+ self.pkt_size = pkt_size
+ self.traffic = traffic
+ self.reload = reload
+
+#========================================================================
+# Use case 0 increases input load and measure output load => show dropped packets at low loads, show overload behavior
+# Use case 1 and use case 2 run dichotomic searches, searching for 0 packet loss (or whaever loss is configured)
+# Use case 1 shows the effect of number of routes and next-hops
+# Use case 2 shows the effect of the number of destination, using a fixed (low) number of routes and next-hops
+#========================================================================
+def run_use_case(use_case, number_next_hops, number_routes, pkt_size, traffic, reload):
+ if (reload):
+ if (use_case == 2):
+ config = "config.1_1" + "_" + str(use_case) + ".boot"
+ else:
+ config = "config." + str(number_routes) + "_" + str(number_next_hops) + ".boot"
+ reload_vRouter_config(config)
+ send_reset_random()
+ send_reset_value()
+ set_destination_ip(use_case, number_routes, traffic)
+ set_pkt_sizes(tx_cores, pkt_size)
+ print "Running test with pkt size= " + str(pkt_size) + " Next hops = " + str(number_next_hops) + "; number of routes = " + str(number_routes) + "; Traffic = " + str(traffic) + " \n"
+ if (use_case == 0):
+ run_loss_graph(number_next_hops, number_routes, pkt_size, traffic)
+ else:
+ run_dicho_search(number_next_hops, number_routes, pkt_size, traffic)
+ sleep(3)
+
+#========================================================================
+def run_all_use_cases():
+ use_case_nb = 1
+ # Connect to dppd
+ file_path = '/tmp/prox.sock'
+ sock.connect(file_path)
+
+ f.write("pkt_size; tx_mpps; rx_mpps; dropped_pct; dropped_tot; percent_line_rate; latency per core\n")
+ f_all.write("pkt_size; tx_mpps; rx_mpps; dropped_pct; dropped_tot; percent_line_rate; latency per core\n")
+ f_minimal.write("pkt_size; tx_mpps; rx_mpps; dropped_pct; dropped_tot; percent_line_rate; latency per core\n")
+ f.flush();
+ f_all.flush();
+ f_minimal.flush();
+
+ # Starting tests
+ print "Stopping all cores and resetting all values and randoms before starting\n"
+ sock.sendall("stop all")
+ sock.sendall("reset stats\n")
+ sleep(3);
+ for line in file_tests:
+ info = line.split(';')
+ if (info[0][0] == '#'):
+ continue
+ if (info[0][0] == ''):
+ break
+ use_case = int(info[0])
+ next_hops = int(info[1])
+ number_routes = int(info[2])
+ pkt_size = int(info[3])
+ traffic = int(info[4])
+ reload = int(info[5])
+ print str(use_case_nb) + " : Running use case " + str(use_case) + " next_hops = " + str(next_hops) + " routes = " + str(number_routes) + " pkt_size = " + str(pkt_size) + " traffic = " + str(traffic) + " reload = " + str(reload)
+ run_use_case(use_case, next_hops, number_routes, pkt_size, traffic, reload)
+ use_case_nb = use_case_nb + 1
+
+#========================================================================
+def configure_use_case(use_case):
+ Tests = []
+ if (use_case == 0):
+ for pkt_size in all_pkt_size:
+ Tests.append(TestDefinition("0", "1", "1", pkt_size, "0", "1"))
+ for pkt_size in all_pkt_size:
+ Tests.append(TestDefinition("0", "1", "1", pkt_size, "1", "1"))
+ if (use_case == 1):
+ number_next_hops = 1
+ reload = 0
+
+ number_routes = number_next_hops # At least same number of routes that number of next hops
+ while number_routes <= max_number_routes:
+ reload = 1
+ for traffic in range(6):
+ for pkt_size in all_pkt_size:
+ Tests.append(TestDefinition(use_case, number_next_hops, number_routes, pkt_size, traffic, reload))
+ reload = 0
+ if (number_routes < max_number_routes / 2):
+ number_routes = number_routes * 4
+ else:
+ number_routes = number_routes * 2
+
+ number_routes = max_number_next_hops
+ while number_next_hops <= max_number_next_hops:
+ reload = 1
+ for traffic in range(6):
+ for pkt_size in all_pkt_size:
+ Tests.append(TestDefinition(use_case, number_next_hops, number_routes, pkt_size, traffic, reload))
+ reload = 0
+ number_next_hops = number_next_hops * 2
+ if (use_case == 2):
+ number_next_hops = 1
+ reload = 1
+ for traffic in range(6):
+ nb_destinations = 1
+ while nb_destinations <= max_number_addresses_local_network:
+ for pkt_size in all_pkt_size:
+ Tests.append(TestDefinition(use_case, number_next_hops, nb_destinations, pkt_size, traffic, reload))
+ reload = 0
+ nb_destinations = nb_destinations * 2
+ reload = 1
+
+ file_tests = open('test_description.txt', 'w')
+ file_tests.write("# Use case; next_hops; routes; pkt_size; traffic; reload;\n")
+ for test in Tests:
+ file_tests.write(str(test.use_case) + "; " + str(test.next_hops) + "; " + str(test.number_routes) + "; " + str(test.pkt_size) + "; " + str(test.traffic) + "; " + str(test.reload) + ";\n")
+ file_tests.close()
+
+#========================================================================
+if ((configure == 0) and (run == 0)):
+ print "Nothing to do - please use -r 1 or -c 1"
+if (configure == 1):
+ configure_use_case(use_case)
+if (run == 1):
+ print "****************************************************************************************************************"
+ print "** Running vRouter Characterization with " + str(test_duration) + " seconds steps and starting at " + str(init_speed) + " percent of line rate **"
+ print "****************************************************************************************************************"
+ sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
+ f_all = open('all_results.txt', 'w')
+ f = open('detailed_results.txt', 'w')
+ f_minimal = open('minimal_results.txt', 'w')
+ file_tests = open('test_description.txt', 'r')
+ run_all_use_cases()
+ f.close();
+ sock.close();