Minor, just comment

tools_scripts/benchmark/BenchmarkSubscriber.groovy

@@ -62,7 +62,7 @@ class BenchmarkSubscriber {
                     double msgPerSec = (numReceived / spentTime) * 1000
                     println "SUB: Speed: $msgPerSec msg/sec"
                     println "SUB: Latency diagram"
-                    histogram.outputPercentileDistribution(System.out, 1000.0);
+                    histogram.outputPercentileDistribution(System.out, 1000.0); //nanos/1000
                     m_latch.countDown()
                 } else {
                     String message = payload as String

tools_scripts/benchmark/fuse_asynch_benchmarker.groovy

@@ -29,6 +29,8 @@ if (args.size() < 3) {
     return
 }
 
+println "*** Histogram measures are in microseconds ***"
+
 String host = args[0]
 int numToSend = args[1] as int
 int messagesPerSecond = args[2] as int