From 4e5b2346a5700b14687a33175ba54a93960a9d33 Mon Sep 17 00:00:00 2001
From: Justin Clark-Casey (justincc)
Date: Tue, 16 Oct 2012 23:44:52 +0100
Subject: 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(-)

(limited to 'OpenSim/Framework/Monitoring')

diff --git a/OpenSim/Framework/Monitoring/BaseStatsCollector.cs b/OpenSim/Framework/Monitoring/BaseStatsCollector.cs
index 57a63ef..2903b6e 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 a23cf1f..c6010cd 100644
--- a/OpenSim/Framework/Monitoring/MemoryWatchdog.cs
+++ b/OpenSim/Framework/Monitoring/MemoryWatchdog.cs
@@ -60,7 +60,7 @@ 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
         {
@@ -68,6 +68,14 @@ namespace OpenSim.Framework.Monitoring
         }
 
         /// <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>
         /// <remarks>
-- 
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