add a script for server load testing

examples/utilities/diagnostics/loadTestServers.js

@@ -0,0 +1,68 @@
+//
+//  loadTestServers.js 
+//  examples/utilities/diagnostics
+//
+//  Created by Stephen Birarda on 05/08/15.
+//  Copyright 2015 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+//  This script is made for load testing HF servers. It connects to the HF servers and sends/receives data.
+//  Run this on an assignment-client.
+//
+
+var count = 0;
+var yawDirection = -1;
+var yaw = 45;
+var yawMax = 70;
+var yawMin = 20;
+var vantagePoint = {x: 5000, y: 500, z: 5000};
+
+var isLocal = false;
+
+// set up our EntityViewer with a position and orientation
+var orientation = Quat.fromPitchYawRollDegrees(0, yaw, 0);
+
+EntityViewer.setPosition(vantagePoint);
+EntityViewer.setOrientation(orientation);
+EntityViewer.queryOctree();
+
+Agent.isListeningToAudioStream = true;
+Agent.isAvatar = true;
+
+function getRandomInt(min, max) {
+    return Math.floor(Math.random() * (max - min + 1)) + min;
+}
+
+function keepLooking(deltaTime) {
+    count++;
+    
+    if (count % getRandomInt(5, 15) == 0) {
+        yaw += yawDirection;
+        orientation = Quat.fromPitchYawRollDegrees(0, yaw, 0);
+        
+        if (yaw > yawMax || yaw < yawMin) {
+            yawDirection = yawDirection * -1;
+        }
+
+        EntityViewer.setOrientation(orientation);
+        EntityViewer.queryOctree();
+            
+    }
+    
+    // approximately every second, consider stopping
+    if (count % 60 == 0) {
+        print("considering stop.... elementCount:" + EntityViewer.getOctreeElementsCount());
+        
+        var stopProbability = 0.05; // 5% chance of stopping
+        
+        if (Math.random() < stopProbability) {
+            print("stopping.... elementCount:" + EntityViewer.getOctreeElementsCount());
+            Script.stop();
+        } 
+    }
+}
+
+// register the call back so it fires before each data send
+Script.update.connect(keepLooking);