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- #! /usr/bin/env python
-
- # Test network throughput.
- #
- # Usage:
- # 1) on host_A: throughput -s [port] # start a server
- # 2) on host_B: throughput -c count host_A [port] # start a client
- #
- # The server will service multiple clients until it is killed.
- #
- # The client performs one transfer of count*BUFSIZE bytes and
- # measures the time it takes (roundtrip!).
-
-
- import sys, time
- from socket import *
-
- MY_PORT = 50000 + 42
-
- BUFSIZE = 1024
-
-
- def main():
- if len(sys.argv) < 2:
- usage()
- if sys.argv[1] == '-s':
- server()
- elif sys.argv[1] == '-c':
- client()
- else:
- usage()
-
-
- def usage():
- sys.stdout = sys.stderr
- print 'Usage: (on host_A) throughput -s [port]'
- print 'and then: (on host_B) throughput -c count host_A [port]'
- sys.exit(2)
-
-
- def server():
- if len(sys.argv) > 2:
- port = eval(sys.argv[2])
- else:
- port = MY_PORT
- s = socket(AF_INET, SOCK_STREAM)
- s.bind('', port)
- s.listen(1)
- print 'Server ready...'
- while 1:
- conn, (host, remoteport) = s.accept()
- while 1:
- data = conn.recv(BUFSIZE)
- if not data:
- break
- del data
- conn.send('OK\n')
- conn.close()
- print 'Done with', host, 'port', remoteport
-
-
- def client():
- if len(sys.argv) < 4:
- usage()
- count = int(eval(sys.argv[2]))
- host = sys.argv[3]
- if len(sys.argv) > 4:
- port = eval(sys.argv[4])
- else:
- port = MY_PORT
- testdata = 'x' * (BUFSIZE-1) + '\n'
- t1 = time.time()
- s = socket(AF_INET, SOCK_STREAM)
- t2 = time.time()
- s.connect(host, port)
- t3 = time.time()
- i = 0
- while i < count:
- i = i+1
- s.send(testdata)
- s.shutdown(1) # Send EOF
- t4 = time.time()
- data = s.recv(BUFSIZE)
- t5 = time.time()
- print data
- print 'Raw timers:', t1, t2, t3, t4, t5
- print 'Intervals:', t2-t1, t3-t2, t4-t3, t5-t4
- print 'Total:', t5-t1
- print 'Throughput:', round((BUFSIZE*count*0.001) / (t5-t1), 3),
- print 'K/sec.'
-
-
- main()
-