From baa599e5b0a6b4c9e4f40241e92f323df2ba3f48 Mon Sep 17 00:00:00 2001
From: "Justin Clark-Casey (justincc)" <jjustincc@googlemail.com>
Date: Tue, 16 Oct 2012 23:44:52 +0100
Subject: [PATCH] Add LastMemoryChurn stat using existing data so we can more
 quickly tell how memory churn changes rather than waiting for the average to
 move.

---
 OpenSim/Framework/Monitoring/BaseStatsCollector.cs |  6 +++++-
 OpenSim/Framework/Monitoring/MemoryWatchdog.cs     | 10 +++++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/OpenSim/Framework/Monitoring/BaseStatsCollector.cs b/OpenSim/Framework/Monitoring/BaseStatsCollector.cs
index 57a63ef4f2..2903b6e7fe 100644
--- a/OpenSim/Framework/Monitoring/BaseStatsCollector.cs
+++ b/OpenSim/Framework/Monitoring/BaseStatsCollector.cs
@@ -49,7 +49,11 @@ namespace OpenSim.Framework.Monitoring
                 Math.Round(GC.GetTotalMemory(false) / 1024.0 / 1024.0));
 
             sb.AppendFormat(
-                "OpenSim object memory churn : {0} MB/s\n",
+                "OpenSim last object memory churn    : {0} MB/s\n",
+                Math.Round((MemoryWatchdog.LastMemoryChurn * 1000) / 1024.0 / 1024, 3));
+
+            sb.AppendFormat(
+                "OpenSim average object memory churn : {0} MB/s\n",
                 Math.Round((MemoryWatchdog.AverageMemoryChurn * 1000) / 1024.0 / 1024, 3));
 
             sb.AppendFormat(
diff --git a/OpenSim/Framework/Monitoring/MemoryWatchdog.cs b/OpenSim/Framework/Monitoring/MemoryWatchdog.cs
index a23cf1fea8..c6010cd092 100644
--- a/OpenSim/Framework/Monitoring/MemoryWatchdog.cs
+++ b/OpenSim/Framework/Monitoring/MemoryWatchdog.cs
@@ -60,13 +60,21 @@ namespace OpenSim.Framework.Monitoring
         private static bool m_enabled;
 
         /// <summary>
-        /// Average memory churn in bytes per millisecond.
+        /// Last memory churn in bytes per millisecond.
         /// </summary>
         public static double AverageMemoryChurn
         {
             get { if (m_samples.Count > 0) return m_samples.Average(); else return 0; }
         }
 
+        /// <summary>
+        /// Average memory churn in bytes per millisecond.
+        /// </summary>
+        public static double LastMemoryChurn
+        {
+            get { if (m_samples.Count > 0) return m_samples.Last(); else return 0; }
+        }
+
         /// <summary>
         /// Maximum number of statistical samples.
         /// </summary>