From 5c6f0b20c6ee6d4b26dc2540cac115d493805528 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Tj=C3=A4der?= <henrik.tjader@gmail.com>
Date: Sat, 31 Jan 2015 16:12:19 +0100
Subject: [PATCH] Calculate range and std.dev. close files
---
UDP-client-server.py | 21 ++++++++++++++++++---
1 file changed, 18 insertions(+), 3 deletions(-)
diff --git a/UDP-client-server.py b/UDP-client-server.py
index 6c9e392..092c374 100644
--- a/UDP-client-server.py
+++ b/UDP-client-server.py
@@ -2,6 +2,8 @@ import socket
import time
import sys
from threading import Thread
+import numpy as np
+from array import *
#DEFINE INPUTS HERE
#CLIENT - SENDER
@@ -31,8 +33,10 @@ def udp_client_receive(UDP_RECEIVE_IP, UDP_RECEIVE_PORT):
global cumulative_delay
global min_delay
global max_delay
+ global rt_delay_array
min_delay = 100.
max_delay = 0.
+ rt_delay_array = array('f')
packet_count_rcvd = 0
cumulative_delay = 0.
@@ -51,11 +55,14 @@ def udp_client_receive(UDP_RECEIVE_IP, UDP_RECEIVE_PORT):
packet_number = str(splitdata[1].strip("' '"))
packet_number = packet_number.lstrip('0')
#WRITE TO FILE AND DO PACKET COUNT
- #outfile = open("udp_twoway_results.csv", "a").\
- open("udp_twoway_results.csv", "a").\
+ outfile = open("udp_twoway_results.csv", "a").\
write(str(time.ctime() + ',' + 'received , ' +
packet_number + ' , ' + str(rt_delay) + '\n'))
+# Store all rt_delay for std.dev. calculation
+
+ rt_delay_array.append(rt_delay)
+
print (time.ctime() + ',' + 'received , ' +
packet_number + ' , ' + str(rt_delay))
@@ -64,11 +71,12 @@ def udp_client_receive(UDP_RECEIVE_IP, UDP_RECEIVE_PORT):
max_delay = rt_delay
if rt_delay < min_delay:
min_delay = rt_delay
- print (max_delay, min_delay)
packet_count_rcvd = packet_count_rcvd + 1
cumulative_delay = cumulative_delay + rt_delay
+ outfile.close()
+
#CLIENT SERVER SIDE
def udp_client_send(UDP_DEST_IP, UDP_DEST_PORT,
@@ -112,12 +120,19 @@ def udp_client_send(UDP_DEST_IP, UDP_DEST_PORT,
time.sleep(5)
# Perhaps create a custom object where we store the statistics?
# Or from here save it directly into the database?
+
PLR = 100 - ((packet_count_rcvd * 100.) / packet_count_snd)
print '\n', packet_count_snd, 'packets sent'
print packet_count_rcvd, 'packets received'
print 'packet loss ratio = ', round(PLR, 3), '%'
+ print 'range =', (max_delay - min_delay)
+
+#CALCULATE THE STANDARD DEVIATION
+
+ print 'std. dev.: ', np.std(rt_delay_array)
+
if packet_count_rcvd == 0:
pass
else:
--
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