Official TCP Full speed benchmark

Dependencies:   PicoTCP lpc1768-picotcp-eth mbed-rtos mbed

This project represents a the official TCP Full speed Benchmark for the PicoTCP library.

The mbed board is sending and receiving one Megabyte from/to the other side and we measure how fast it does that.

The result:
TX+RX Throughput: 2097152 bytes in 1 seconds (12.410)Mbits/s

The python script used (which you should rename it to PicoTCP_Official_TCP_Full_Benchmark.py)

#!/usr/bin/python
import sys, socket
import random, string
import select
from time import time
ECHO_SERVER_ADDRESS = "192.168.100.12"
ECHO_SERVER_PORT = 7
N_PACKETS = 1024
LEN_PACKET = 1024

TOT_BITS = (LEN_PACKET * N_PACKETS * 8) * 2. # TX bits + RX bits
PACKET = ''.join(random.choice(string.ascii_uppercase+string.digits) for _ in range(LEN_PACKET))
MEGA = 1024 * 1024.
UPDATE_STEP = (N_PACKETS/20) # Make the update step such as one step = 5%
UPDATE_R_STEP = (N_PACKETS/100) #Make the update step such as one step = 1%
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((ECHO_SERVER_ADDRESS, ECHO_SERVER_PORT))
start = time()
rx_total = 0
tx_total = 0
data = ''
i = 0
lp = []
p = select.poll()
while(True): # keeping this in for robustness testing, when the test will run for days
	print "Started echoing data...."
	for i in range(N_PACKETS):
		if (i % UPDATE_STEP) == 0: print "%.2f%%" % (float(i)/float(N_PACKETS) * 100.)
		s.sendall(PACKET)
		data = s.recv(LEN_PACKET)
		if (len(data) != LEN_PACKET):
			print "Error echoing !"
			sys.exit(1)

	print "Test was finished!"
	break;	

t = time() - start
s.close()
print "TX+RX Throughput: %d bytes in %d seconds (%.3f)Mbits/s" % (TOT_BITS / 8, t, ((TOT_BITS / t) / MEGA))

This test is based on the following libraries

Import librarylpc1768-picotcp-eth

A PicoTCP driver for the lpc1768 mbed board

Import libraryPicoTCP

Free (GPLv2) TCP/IP stack developed by TASS Belgium

Import librarymbed-rtos

Official mbed Real Time Operating System based on the RTX implementation of the CMSIS-RTOS API open standard.

Committer:
tass
Date:
Mon Oct 07 07:06:11 2013 +0000
Revision:
1:1996535d99e9
Parent:
0:a90d7f1c17bc
Update to the latest picotcp lib.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tass 0:a90d7f1c17bc 1 #include <mbed.h>
tass 0:a90d7f1c17bc 2 #include <stdarg.h>
tass 0:a90d7f1c17bc 3 #include "EthernetInterface.h"
tass 0:a90d7f1c17bc 4
tass 0:a90d7f1c17bc 5 #define ECHO_SERVER_PORT 7
tass 0:a90d7f1c17bc 6 #define BUFFER_QUANTITY (1024*1024)
tass 0:a90d7f1c17bc 7 #define BUFFER_SIZE (1024)
tass 0:a90d7f1c17bc 8
tass 0:a90d7f1c17bc 9 EthernetInterface eth;
tass 0:a90d7f1c17bc 10
tass 0:a90d7f1c17bc 11 int main()
tass 0:a90d7f1c17bc 12 {
tass 0:a90d7f1c17bc 13 TCPSocketServer server;
tass 0:a90d7f1c17bc 14
tass 0:a90d7f1c17bc 15 printf("Started PicoTCP Full Benchmark....\n");
tass 0:a90d7f1c17bc 16
tass 0:a90d7f1c17bc 17 eth.init();
tass 0:a90d7f1c17bc 18 printf("Waiting for DHCP server to give IP...\n");
tass 0:a90d7f1c17bc 19
tass 0:a90d7f1c17bc 20 while(eth.connect() != 0);
tass 0:a90d7f1c17bc 21 printf("IP address assigned : %s\n",eth.getIPAddress());
tass 0:a90d7f1c17bc 22
tass 0:a90d7f1c17bc 23 server.bind(ECHO_SERVER_PORT);
tass 0:a90d7f1c17bc 24 server.listen();
tass 0:a90d7f1c17bc 25 printf("Local server listening on port : %d\n",ECHO_SERVER_PORT);
tass 0:a90d7f1c17bc 26
tass 0:a90d7f1c17bc 27
tass 0:a90d7f1c17bc 28 while (true) {
tass 0:a90d7f1c17bc 29 printf("\n>>> You can start PicoTCP_Official_TCP_Full_Benchmark.py\n");
tass 0:a90d7f1c17bc 30
tass 0:a90d7f1c17bc 31 TCPSocketConnection client;
tass 0:a90d7f1c17bc 32 server.accept(client);
tass 1:1996535d99e9 33 client.set_blocking(true, 1500); // Timeout after (1.5)s
tass 0:a90d7f1c17bc 34 char buffer[BUFFER_SIZE];
tass 0:a90d7f1c17bc 35 int dataSent = 0, dataReceived = 0;
tass 0:a90d7f1c17bc 36 while(dataSent < BUFFER_QUANTITY)
tass 0:a90d7f1c17bc 37 {
tass 0:a90d7f1c17bc 38 while((dataReceived+dataSent) < 2*BUFFER_QUANTITY)
tass 0:a90d7f1c17bc 39 {
tass 0:a90d7f1c17bc 40 int n = client.receive(buffer, sizeof(buffer));
tass 0:a90d7f1c17bc 41 if (n <= 0) {
tass 0:a90d7f1c17bc 42 break;
tass 0:a90d7f1c17bc 43 }
tass 0:a90d7f1c17bc 44 dataReceived += n;
tass 0:a90d7f1c17bc 45
tass 0:a90d7f1c17bc 46 n = client.send_all(buffer, n);
tass 0:a90d7f1c17bc 47 if (n <= 0) {
tass 0:a90d7f1c17bc 48 break;
tass 0:a90d7f1c17bc 49 }
tass 0:a90d7f1c17bc 50 dataSent += n;
tass 0:a90d7f1c17bc 51 }
tass 0:a90d7f1c17bc 52 }
tass 0:a90d7f1c17bc 53
tass 0:a90d7f1c17bc 54 if((dataSent+dataReceived) == 2*BUFFER_QUANTITY)
tass 0:a90d7f1c17bc 55 {
tass 0:a90d7f1c17bc 56 printf("You can read the Rx+Tx Throughput now \n");
tass 0:a90d7f1c17bc 57 }
tass 0:a90d7f1c17bc 58 else
tass 0:a90d7f1c17bc 59 {
tass 0:a90d7f1c17bc 60 printf("Benchmark failed !\n");
tass 0:a90d7f1c17bc 61 }
tass 0:a90d7f1c17bc 62 }
tass 0:a90d7f1c17bc 63 }