From fdd1c63c3c1333c8ec833a669de76e07d2ff0159 Mon Sep 17 00:00:00 2001
From: Justin Clark-Casey (justincc)
Date: Wed, 30 Oct 2013 18:57:51 +0000
Subject: Make "fcache status" command also display information on disk/mem
 cache hit rate that is currently only displayed if LogLevel >=1 in
 [AssetCache] config

---
 .../Region/CoreModules/Asset/FlotsamAssetCache.cs  | 56 +++++++++++++++-------
 1 file changed, 38 insertions(+), 18 deletions(-)

(limited to 'OpenSim/Region/CoreModules/Asset')

diff --git a/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs b/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs
index 103228f..08d4fc0 100644
--- a/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs
+++ b/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs
@@ -31,6 +31,7 @@
 using System;
 using System.IO;
 using System.Collections.Generic;
+using System.Linq;
 using System.Reflection;
 using System.Runtime.Serialization;
 using System.Runtime.Serialization.Formatters.Binary;
@@ -74,8 +75,6 @@ namespace OpenSim.Region.CoreModules.Asset
         private static ulong m_RequestsForInprogress;
         private static ulong m_DiskHits;
         private static ulong m_MemoryHits;
-        private static double m_HitRateMemory;
-        private static double m_HitRateFile;
 
 #if WAIT_ON_INPROGRESS_REQUESTS
         private Dictionary<string, ManualResetEvent> m_CurrentlyWriting = new Dictionary<string, ManualResetEvent>();
@@ -427,18 +426,9 @@ namespace OpenSim.Region.CoreModules.Asset
 
             if (((m_LogLevel >= 1)) && (m_HitRateDisplay != 0) && (m_Requests % m_HitRateDisplay == 0))
             {
-                m_HitRateFile = (double)m_DiskHits / m_Requests * 100.0;
-
                 m_log.InfoFormat("[FLOTSAM ASSET CACHE]: Cache Get :: {0} :: {1}", id, asset == null ? "Miss" : "Hit");
-                m_log.InfoFormat("[FLOTSAM ASSET CACHE]: File Hit Rate {0}% for {1} requests", m_HitRateFile.ToString("0.00"), m_Requests);
-
-                if (m_MemoryCacheEnabled)
-                {
-                    m_HitRateMemory = (double)m_MemoryHits / m_Requests * 100.0;
-                    m_log.InfoFormat("[FLOTSAM ASSET CACHE]: Memory Hit Rate {0}% for {1} requests", m_HitRateMemory.ToString("0.00"), m_Requests);
-                }
 
-                m_log.InfoFormat("[FLOTSAM ASSET CACHE]: {0} unnessesary requests due to requests for assets that are currently downloading.", m_RequestsForInprogress);
+                GenerateCacheHitReport().ForEach(l => m_log.InfoFormat("[FLOTSAM ASSET CACHE]: {0}", l));
             }
 
             return asset;
@@ -805,6 +795,30 @@ namespace OpenSim.Region.CoreModules.Asset
             }
         }
 
+        private List<string> GenerateCacheHitReport()
+        {
+            List<string> outputLines = new List<string>();
+
+            double fileHitRate = (double)m_DiskHits / m_Requests * 100.0;
+            outputLines.Add(
+                string.Format("File Hit Rate: {0}% for {1} requests", fileHitRate.ToString("0.00"), m_Requests));
+
+            if (m_MemoryCacheEnabled)
+            {
+                double memHitRate = (double)m_MemoryHits / m_Requests * 100.0;
+
+                outputLines.Add(
+                    string.Format("Memory Hit Rate: {0}% for {1} requests", memHitRate.ToString("0.00"), m_Requests));
+            }
+
+            outputLines.Add(
+                string.Format(
+                    "Unnecessary requests due to requests for assets that are currently downloading: {0}", 
+                    m_RequestsForInprogress));
+
+            return outputLines;
+        }
+
         #region Console Commands
         private void HandleConsoleCommand(string module, string[] cmdparams)
         {
@@ -818,14 +832,24 @@ namespace OpenSim.Region.CoreModules.Asset
                 {
                     case "status":
                         if (m_MemoryCacheEnabled)
-                            con.OutputFormat("Memory Cache : {0} assets", m_MemoryCache.Count);
+                            con.OutputFormat("Memory Cache: {0} assets", m_MemoryCache.Count);
                         else
                             con.OutputFormat("Memory cache disabled");
 
                         if (m_FileCacheEnabled)
                         {
                             int fileCount = GetFileCacheCount(m_CacheDirectory);
-                            con.OutputFormat("File Cache : {0} assets", fileCount);
+                            con.OutputFormat("File Cache: {0} assets", fileCount);
+                        }
+                        else
+                        {
+                            con.Output("File cache disabled");
+                        }
+
+                        GenerateCacheHitReport().ForEach(l => con.Output(l));
+
+                        if (m_FileCacheEnabled)
+                        {
                             con.Output("Deep scans have previously been performed on the following regions:");
     
                             foreach (string s in Directory.GetFiles(m_CacheDirectory, "*.fac"))
@@ -835,10 +859,6 @@ namespace OpenSim.Region.CoreModules.Asset
                                 con.OutputFormat("Region: {0}, {1}", RegionID, RegionDeepScanTMStamp.ToString("MM/dd/yyyy hh:mm:ss"));
                             }
                         }
-                        else
-                        {
-                            con.Output("File cache disabled");
-                        }
 
                         break;
 
-- 
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