* Add memory currently allocated to OpenSim to 'show stats' statistics

* This is the GC.GetTotalMemory() method, which I'm guessing does not include memory used by the VM (hence the memory usage reported in top on linux would be much higher)

OpenSim/Framework/Statistics/AssetStatsCollector.cs

@@ -33,7 +33,7 @@ namespace OpenSim.Framework.Statistics
     /// <summary>
     /// Asset service statistics collection
     /// </summary>
-    public class AssetStatsCollector : IStatsCollector
+    public class AssetStatsCollector : BaseStatsCollector
     {
         private Timer ageStatsTimer = new Timer(24 * 60 * 60 * 1000);
         private DateTime startTime = DateTime.Now;

OpenSim/Framework/Statistics/BaseStatsCollector.cs

@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSim Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+ 
+using System;
+using System.Text;
+ 
+namespace OpenSim.Framework.Statistics
+{
+    /// <summary>
+    /// Statistics which all collectors are interested in reporting
+    /// </summary>
+    public class BaseStatsCollector : IStatsCollector
+    {
+        public virtual string Report()
+        {
+            StringBuilder sb = new StringBuilder(Environment.NewLine);
+            sb.Append("MEMORY STATISTICS");
+            sb.Append(Environment.NewLine);
+            sb.Append(
+                string.Format(
+                    "Allocated to OpenSim : {0} MB" + Environment.NewLine,
+                    Math.Round(GC.GetTotalMemory(false) / 1024.0 / 1024.0)));
+            
+            return sb.ToString();
+        }
+    }
+}

OpenSim/Framework/Statistics/SimExtraStatsCollector.cs

@@ -36,7 +36,7 @@ namespace OpenSim.Framework.Statistics
     /// <summary>
     /// Collects sim statistics which aren't already being collected for the linden viewer's statistics pane
     /// </summary>
-    public class SimExtraStatsCollector : IStatsCollector
+    public class SimExtraStatsCollector : BaseStatsCollector
     {
         private long abnormalClientThreadTerminations;
         
@@ -140,7 +140,7 @@ namespace OpenSim.Framework.Statistics
         /// Report back collected statistical information.
         /// </summary>
         /// <returns></returns>
-        public string Report()
+        public override string Report()
         {
             StringBuilder sb = new StringBuilder(Environment.NewLine);
             sb.Append("ASSET STATISTICS");
@@ -193,6 +193,8 @@ Blocked requests for missing textures: {2}" + Environment.NewLine,
                 sb.Append(Environment.NewLine);
             }
 
+            sb.Append(base.Report());
+            
             return sb.ToString();
         }
     }

OpenSim/Framework/Statistics/UserStatsCollector.cs

@@ -32,7 +32,7 @@ namespace OpenSim.Framework.Statistics
     /// <summary>
     /// Collects user service statistics
     /// </summary>
-    public class UserStatsCollector : IStatsCollector
+    public class UserStatsCollector : BaseStatsCollector
     {
         private Timer ageStatsTimer = new Timer(24 * 60 * 60 * 1000);