From 6e8f80f1ab933bbd00b892fa6d01f93f62a1bbbd Mon Sep 17 00:00:00 2001
From: Justin Clark-Casey (justincc)
Date: Fri, 16 Mar 2012 03:26:47 +0000
Subject: Improve threadpool reporting to "show threads" console command (also
 gets printed out periodically)

---
 OpenSim/Framework/Util.cs | 56 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 55 insertions(+), 1 deletion(-)

(limited to 'OpenSim/Framework/Util.cs')

diff --git a/OpenSim/Framework/Util.cs b/OpenSim/Framework/Util.cs
index 31fa101..9e0f138 100644
--- a/OpenSim/Framework/Util.cs
+++ b/OpenSim/Framework/Util.cs
@@ -147,7 +147,6 @@ namespace OpenSim.Framework
             return lerp(y, lerp(x, a, b), lerp(x, c, d));
         }
 
-
         public static Encoding UTF8 = Encoding.UTF8;
 
         /// <value>
@@ -1674,6 +1673,61 @@ namespace OpenSim.Framework
             }
         }
 
+        /// <summary>
+        /// Get a thread pool report.
+        /// </summary>
+        /// <returns></returns>
+        public static string GetThreadPoolReport()
+        {
+            string threadPoolUsed = null;
+            int maxThreads = 0;
+            int minThreads = 0;
+            int allocatedThreads = 0;
+            int inUseThreads = 0;
+            int waitingCallbacks = 0;
+            int completionPortThreads = 0;
+
+            StringBuilder sb = new StringBuilder();
+            if (FireAndForgetMethod == FireAndForgetMethod.SmartThreadPool)
+            {
+                threadPoolUsed = "SmartThreadPool";
+                maxThreads = m_ThreadPool.MaxThreads;
+                minThreads = m_ThreadPool.MinThreads;
+                inUseThreads = m_ThreadPool.InUseThreads;
+                allocatedThreads = m_ThreadPool.ActiveThreads;
+                waitingCallbacks = m_ThreadPool.WaitingCallbacks;
+            }
+            else if (
+                FireAndForgetMethod == FireAndForgetMethod.UnsafeQueueUserWorkItem
+                    || FireAndForgetMethod == FireAndForgetMethod.UnsafeQueueUserWorkItem)
+            {
+                threadPoolUsed = "BuiltInThreadPool";
+                ThreadPool.GetMaxThreads(out maxThreads, out completionPortThreads);
+                ThreadPool.GetMinThreads(out minThreads, out completionPortThreads);
+                int availableThreads;
+                ThreadPool.GetAvailableThreads(out availableThreads, out completionPortThreads);
+                inUseThreads = maxThreads - availableThreads;
+                allocatedThreads = -1;
+                waitingCallbacks = -1;
+            }
+
+            if (threadPoolUsed != null)
+            {
+                sb.AppendFormat("Thread pool used           : {0}\n", threadPoolUsed);
+                sb.AppendFormat("Max threads                : {0}\n", maxThreads);
+                sb.AppendFormat("Min threads                : {0}\n", minThreads);
+                sb.AppendFormat("Allocated threads          : {0}\n", allocatedThreads < 0 ? "not applicable" : allocatedThreads.ToString());
+                sb.AppendFormat("In use threads             : {0}\n", inUseThreads);
+                sb.AppendFormat("Work items waiting         : {0}\n", waitingCallbacks < 0 ? "not available" : waitingCallbacks.ToString());
+            }
+            else
+            {
+                sb.AppendFormat("Thread pool not used\n");
+            }
+
+            return sb.ToString();
+        }
+
         private static object SmartThreadPoolCallback(object o)
         {
             object[] array = (object[])o;
-- 
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