TASS Belgium / Mbed 2 deprecated PicoTCP_Official_TCP_Full_Benchmark

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

#include <mbed.h>
#include <stdarg.h>
#include "EthernetInterface.h"

#define ECHO_SERVER_PORT  7
#define BUFFER_QUANTITY   (1024*1024)
#define BUFFER_SIZE       (1024)

EthernetInterface eth;

int main() 
{
    TCPSocketServer server;
   
    printf("Started PicoTCP Full Benchmark....\n");
    
    eth.init();
    printf("Waiting for DHCP server to give IP...\n");
    
    while(eth.connect() != 0);
    printf("IP address assigned : %s\n",eth.getIPAddress());
    
    server.bind(ECHO_SERVER_PORT);
    server.listen();
    printf("Local server listening on port : %d\n",ECHO_SERVER_PORT);
    
    
    while (true) {
        printf("\n>>> You can start PicoTCP_Official_TCP_Full_Benchmark.py\n");    
        
        TCPSocketConnection client;
        server.accept(client);
        client.set_blocking(true, 1500); // Timeout after (1.5)s
        char buffer[BUFFER_SIZE];
        int dataSent = 0, dataReceived = 0;
        while(dataSent < BUFFER_QUANTITY)
        {
            while((dataReceived+dataSent) < 2*BUFFER_QUANTITY)
            {
                int n = client.receive(buffer, sizeof(buffer));
                if (n <= 0) {
                    break;
                }
                dataReceived += n;
                
                n = client.send_all(buffer, n);
                if (n <= 0) {
                    break;
                }
                dataSent += n;
            }
        }
    
        if((dataSent+dataReceived) == 2*BUFFER_QUANTITY)
        {
            printf("You can read the Rx+Tx Throughput now \n");
        }
        else
        {
            printf("Benchmark failed !\n");
        }
    }    
}