Working on examples.

Added new example to create xterms.
Other minor changes.

examples/linearBandwidth.py

@@ -1,36 +1,47 @@
 #!/usr/bin/python
 
+"""
+Test bandwidth on a linear network of varying size, using both
+the kernel and user datapaths.
+
+The network looks like:
+
+h0 <-> s0 <-> s1 .. sN <-> h1
+"""
+   
 from mininet import init, LinearNet, iperfTest
 
 def linearBandwidthTest():
-   """Test bandwidth on a linear network of varying size, using both
-      the kernel and user datapaths."""
-  
-   print "*** Testing Mininet with kernel and user datapath"
-   
-   datapaths = [ 'kernel' ]
+
+   datapaths = [ 'kernel', 'user' ]
+   switchCounts = [ 1, 20, 40, 60, 80, 100 ]
    results = {}
-      
+
    for datapath in datapaths:
       k = datapath == 'kernel'
       results[ datapath ] = []
-      for switchCount in range( 1, 17, 2 ):
-         print "*** Creating Linear Network of size", switchCount
+      for switchCount in switchCounts: 
+         print "*** Creating linear network of size", switchCount
          network = LinearNet( switchCount, k)
          bandwidth = network.run( iperfTest )
          results[ datapath ] += [ ( switchCount, bandwidth ) ]
          
    for datapath in datapaths:
       print
-      print "*** Linear network results for", datapath, "datapath"
+      print "*** Linear network results for", datapath, "datapath:"
       print
       result = results[ datapath ]  
+      print "SwitchCount\tiPerf results"
       for switchCount, bandwidth in result:
-         print "switchCount:", switchCount, "bandwidth:", bandwidth[ 0 ]
-       
+         print switchCount, '\t\t', 
+         print bandwidth[ 0 ], 'server, ', bandwidth[ 1 ], 'client'
+      print
+   print
+      
 if __name__ == '__main__':
    init()
+   print "*** Running linearBandwidthTest"
    linearBandwidthTest()
    exit( 1 )
 
-   
+