#!/usr/bin/env python
+
import sys
from math import sqrt
timings.append(float(l[3]) / links)
sizes.append(int(l[1]))
+## adds message sizes of interest: if values are specified starting from the 6th command line arg
+## and these values are found as message sizes in te log file, add it to the limits list.
+## Each of these value si considered a potential inflexion point between two segments.
+##
+## If no value specified, a single segment is considered from 1st to last message size logged.
limits = []
if len(sys.argv) > 5:
for i in xrange(5, len(sys.argv)):
