--- a/stress-tester/src/main/java/com/passus/st/source/PcapSessionEventSource.java	Tue Aug 08 14:41:43 2017 +0200
+++ b/stress-tester/src/main/java/com/passus/st/source/PcapSessionEventSource.java	Tue Aug 08 15:51:19 2017 +0200
@@ -532,6 +532,9 @@
                 Event event = new HttpSessionPayloadEvent(info, req, (HttpResponse) message);
                 event.setTimestamp(timestamp);
                 eventHandler.handle(event);
+                if (collectMetric) {
+                    metric.incPayloads();
+                }
             }
         }
 

--- a/stress-tester/src/main/java/com/passus/st/source/PcapSessionEventSourceMetric.java	Tue Aug 08 14:41:43 2017 +0200
+++ b/stress-tester/src/main/java/com/passus/st/source/PcapSessionEventSourceMetric.java	Tue Aug 08 15:51:19 2017 +0200
@@ -21,8 +21,8 @@
     private final String name;
 
     private final MutableInt frames = new MutableInt(0);
-
     private final MutableInt tcpPackets = new MutableInt(0);
+    private final MutableInt payloads = new MutableInt(0);
 
     private final Map<String, Serializable> attrs = new LinkedHashMap<>();
 
@@ -37,7 +37,7 @@
         this.name = name;
         attrs.put("frames", frames);
         attrs.put("tcpPackets", tcpPackets);
-
+        attrs.put("payloads", payloads);
     }
 
     @Override
@@ -73,6 +73,10 @@
         tcpPackets.increment();
     }
 
+    public void incPayloads() {
+        payloads.increment();
+    }
+
     @Override
     public Class getAttributeClass(String name) {
         Serializable value = getAttributeValue(name);
@@ -107,6 +111,7 @@
     public void reset() {
         frames.setValue(0);
         tcpPackets.setValue(0);
+        payloads.setValue(0);
     }
 
     @Override
@@ -118,5 +123,6 @@
         PcapSessionEventSourceMetric pcapMetric = (PcapSessionEventSourceMetric) metric;
         frames.add(pcapMetric.frames);
         tcpPackets.add(pcapMetric.tcpPackets);
+        payloads.add(pcapMetric.payloads);
     }
 }