Eval script outputs loss pattern.

tests/perf/__init__.py

@@ -51,7 +51,7 @@ class SenderThread(threading.Thread):
             d = str(i).zfill(self.seqnoDigits)
             self.sentPackets[i] = datetime.datetime.now()
             self.sock.send(d)
-            time.sleep(0.000001)
+            time.sleep(0.00001)
 
         self.sock.close()
 
@@ -73,7 +73,14 @@ class TestResults(object):
         delayMin = np.min(delayValues) * 1000
         delayMax = np.max(delayValues) * 1000
         delays = "Application Latency [ms]: %f+-%f [%f - %f]" % (delayMean, delayStd, delayMin, delayMax)
-        return "%s\n%s\n%s" % (loss, duplicates, delays)
+
+        losses = "Loss Pattern:\n" + "|          " * 9 + "|"
+        for i,x in np.ndenumerate(self.delays):
+            if i[0] % 100 == 0:
+                losses += "\n"
+            losses += "!" if np.isnan(x) else "."
+
+        return "%s\n%s\n%s\n%s" % (loss, duplicates, delays, losses)
 
 class TestSetup(object):
     def __init__(self,packets=20,delay=1,delay_variation=0,delay_correlation=0,loss=0,loss_correlation=0,duplicate=0,reorder=0,reorder_correlation=0):