optimized processing of *Self columns to avoid GUI hangs in SharpDevelop

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/branches/3.0@5009 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/Misc/Profiler/Controller/Data/CallTreeNode.cs

@@ -79,12 +79,17 @@ namespace ICSharpCode.Profiler.Controller.Data
 		/// </summary>
 		public abstract long CpuCyclesSpent { get; }
 		
+		long cpuCyclesSpentSelf = -1;
+		
 		/// <summary>
 		/// Gets how many CPU cycles were spent inside this method, excluding sub calls.
 		/// </summary>
 		public virtual long CpuCyclesSpentSelf {
 			get {
-				return GetCpuCyclesSelf();
+				if (cpuCyclesSpentSelf == -1)
+					cpuCyclesSpentSelf = GetCpuCyclesSelf();
+				
+				return cpuCyclesSpentSelf;
 			}
 		}
 		
@@ -116,11 +121,19 @@ namespace ICSharpCode.Profiler.Controller.Data
 		/// <summary>
 		/// Determines whether this node is a thread node or not.
 		/// </summary>
-		public bool IsThread
-		{
+		public bool IsThread {
 			get { return this.Name.StartsWith("Thread#", StringComparison.Ordinal); }
 		}
 		
+		/// <summary>
+		/// Determines whether this node has chil
+		/// </summary>
+		public virtual bool HasChildren {
+			get {
+				return this.Children.Any();
+			}
+		}
+		
 		/// <summary>
 		/// Gets a readonly list of the string representation of the parameters.
 		/// </summary>
@@ -136,6 +149,11 @@ namespace ICSharpCode.Profiler.Controller.Data
 		/// </summary>
 		public abstract double TimeSpent { get; }
 		
+		/// <summary>
+		/// Gets the time spent inside the method (excluding sub calls) in milliseconds.
+		/// </summary>
+		public abstract double TimeSpentSelf { get; }
+		
 		/// <summary>
 		/// Gets a reference to the parent of this CallTreeNode.
 		/// </summary>

src/AddIns/Misc/Profiler/Controller/Data/ProfilingDataSQLiteProvider.cs

@@ -60,35 +60,11 @@ namespace ICSharpCode.Profiler.Controller.Data
 		
 		internal IQueryable<CallTreeNode> GetChildren(SQLiteCallTreeNode parent)
 		{
-			SQLiteCommand cmd;
-			using (LockAndCreateCommand(out cmd)) {
-				cmd.CommandText = @"SELECT id, nameid, callcount, timespent, isactiveatstart
-									FROM FunctionData
-									WHERE parentid IN(" + string.Join(",", parent.ids.Select(a => a.ToString(CultureInfo.InvariantCulture.NumberFormat)).ToArray()) + @")
-									ORDER BY id;";
-
-				using (SQLiteDataReader reader = cmd.ExecuteReader()) {
-					List<SQLiteCallTreeNode> items = new List<SQLiteCallTreeNode>();
-
-					while (reader.Read()) {
-						int childNameId = reader.GetInt32(1);
-						SQLiteCallTreeNode newItem = items.Find(node => node.nameId == childNameId);
-						if (newItem == null) {
-							newItem = new SQLiteCallTreeNode(childNameId, (parent.nameId == 0) ? null : parent, this);
-							items.Add(newItem);
-
-							// works because of ORDER BY id
-							newItem.isActiveAtStart = reader.GetBoolean(4);
-						}
-
-						newItem.callCount += reader.GetInt32(2);
-						newItem.cpuCyclesSpent += (ulong)reader.GetInt64(3);
-						newItem.ids.Add(reader.GetInt32(0));
-					}
-
-					return items.Cast<CallTreeNode>().AsQueryable();
-				}
-			}
+			string[] ids = parent.ids
+				.Select(a => a.ToString(CultureInfo.InvariantCulture))
+				.ToArray();
+			
+			return GetMergedFunctionData("parentid IN(" + string.Join(",", ids) + ")", parent.selectionStartIndex);
 		}
 		
 		internal IQueryable<CallTreeNode> GetCallers(SQLiteCallTreeNode item)
@@ -114,6 +90,7 @@ namespace ICSharpCode.Profiler.Controller.Data
 						SQLiteCallTreeNode newItem = items.Find(node => node.nameId == childNameId);
 						if (newItem == null) {
 							newItem = new SQLiteCallTreeNode(childNameId, null, this);
+							newItem.selectionStartIndex = item.selectionStartIndex;
 							items.Add(newItem);
 
 							// works because of ORDER BY id
@@ -291,6 +268,8 @@ namespace ICSharpCode.Profiler.Controller.Data
 				
 				using (SQLiteDataReader reader = cmd.ExecuteReader()) {
 					SQLiteCallTreeNode root = new SQLiteCallTreeNode(0, null, this);
+					
+					root.selectionStartIndex = startIndex;
 
 					while (reader.Read()) {
 						root.callCount += reader.GetInt32(2);
@@ -303,6 +282,7 @@ namespace ICSharpCode.Profiler.Controller.Data
 			}
 		}
 		
+		#region Properties
 		/// <inheritdoc/>
 		public override void SetProperty(string name, string value)
 		{
@@ -349,6 +329,7 @@ namespace ICSharpCode.Profiler.Controller.Data
 			
 			return null;
 		}
+		#endregion
 		
 		int processorFrequency = -1;
 		
@@ -375,35 +356,49 @@ namespace ICSharpCode.Profiler.Controller.Data
 			if (endIndex < startIndex || endIndex >= this.DataSets.Count)
 				throw new ArgumentOutOfRangeException("endIndex", endIndex, "Value must be between " + startIndex + " and " + (this.DataSets.Count - 1));
 			
-			IList<CallTreeNode> functions = new List<CallTreeNode>();
+			var result = GetMergedFunctionData(string.Format("datasetid BETWEEN {0} AND {1}", startIndex, endIndex), startIndex);
+			
+			return result
+				.Where(i => i.NameMapping.Id != 0 && !i.NameMapping.Name.StartsWith("Thread#", StringComparison.Ordinal))
+				.AsQueryable();
+		}
+		
+		IQueryable<CallTreeNode> GetMergedFunctionData(string condition, int startIndex)
+		{
+			IList<CallTreeNode> result = new List<CallTreeNode>();
 			
 			SQLiteCommand cmd;
 			using (LockAndCreateCommand(out cmd)) {
-				cmd.CommandText = @"SELECT GROUP_CONCAT(id), nameid, SUM(timespent), SUM(callcount)
-									FROM FunctionData
-									WHERE datasetid BETWEEN @start AND @end
-									GROUP BY nameid;";
-				cmd.Parameters.Add(new SQLiteParameter("@start", startIndex));
-				cmd.Parameters.Add(new SQLiteParameter("@end", endIndex));
+				cmd.CommandText = @"SELECT
+										GROUP_CONCAT(id),
+										nameid,
+										SUM(timespent),
+										SUM(callcount),
+										MAX(id != endid) AS hasChildren,
+										SUM((datasetid = " + startIndex + @") AND isActiveAtStart) AS activeCallCount
+									  FROM FunctionData
+									  WHERE " + condition + @"
+									  GROUP BY nameid;";
 				
 				using (SQLiteDataReader reader = cmd.ExecuteReader()) {
-					
 					while (reader.Read()) {
 						SQLiteCallTreeNode node = new SQLiteCallTreeNode(reader.GetInt32(1), null, this);
+						node.selectionStartIndex = startIndex;
 						node.callCount = reader.GetInt32(3);
 						node.cpuCyclesSpent = (ulong)reader.GetInt64(2);
 						node.ids = reader.GetString(0).Split(',').Select(s => int.Parse(s)).ToList();
 						node.ids.Sort();
+						node.hasChildren = reader.GetBoolean(4);
+						node.activeCallCount = reader.GetInt32(5);
 						// Can not do filtering of root and thread nodes here,
 						// because retrieval of names needs access to DB
 						// which is forbidden now (we are inside the lock!)
-						functions.Add(node);
+						result.Add(node);
 					}
 				}
 			}
 			
-			// Do filtering now via LINQ
-			return functions.SkipWhile(i => i.NameMapping.Id == 0 || i.NameMapping.Name.StartsWith("Thread#", StringComparison.Ordinal)).AsQueryable();
+			return result.AsQueryable();
 		}
 		
 		LockObject LockAndCreateCommand(out SQLiteCommand cmd)

src/AddIns/Misc/Profiler/Controller/Data/SQLiteCallTreeNode.cs

@@ -26,6 +26,9 @@ namespace ICSharpCode.Profiler.Controller.Data
 		CallTreeNode parent;
 		ProfilingDataSQLiteProvider provider;
 		internal List<int> ids = new List<int>();
+		internal bool hasChildren;
+		internal int activeCallCount;
+		internal int selectionStartIndex;
 		
 		/// <summary>
 		/// Creates a new CallTreeNode.
@@ -91,6 +94,12 @@ namespace ICSharpCode.Profiler.Controller.Data
 				return CpuCyclesSpent / (1000.0 * this.provider.ProcessorFrequency);
 			}
 		}
+		
+		public override double TimeSpentSelf {
+			get {
+				return CpuCyclesSpentSelf / (1000.0 * this.provider.ProcessorFrequency);
+			}
+		}
 
 		/// <summary>
 		/// Gets whether the function call started in a previous data set that's not selected.
@@ -101,8 +110,12 @@ namespace ICSharpCode.Profiler.Controller.Data
 			}
 		}
 		
+		public override int CallCount {
+			get { return callCount + activeCallCount; }
+		}
+		
 		/// <summary>
-		/// Merges a collection of CallTreeNodes into one CallTreeNode, all valuess are accumulated.
+		/// Merges a collection of CallTreeNodes into one CallTreeNode, all values are accumulated.
 		/// </summary>
 		/// <param name="nodes">The collection of nodes to process.</param>
 		/// <returns>A new CallTreeNode.</returns>
@@ -110,8 +123,10 @@ namespace ICSharpCode.Profiler.Controller.Data
 		{
 			SQLiteCallTreeNode mergedNode = new SQLiteCallTreeNode(0, null, this.provider);
 			bool initialised = false;
+			
 			foreach (SQLiteCallTreeNode node in nodes) {
 				mergedNode.ids.AddRange(node.ids);
+				mergedNode.selectionStartIndex = Math.Min(mergedNode.selectionStartIndex, node.selectionStartIndex);
 				mergedNode.callCount += node.callCount;
 				mergedNode.cpuCyclesSpent += node.cpuCyclesSpent;
 				if (!initialised || mergedNode.nameId == node.nameId)
@@ -168,5 +183,9 @@ namespace ICSharpCode.Profiler.Controller.Data
 			
 			return hash;
 		}
+		
+		public override bool HasChildren {
+			get { return this.hasChildren; }
+		}
 	}
 }

src/AddIns/Misc/Profiler/Controller/Data/UnitTestRootCallTreeNode.cs

@@ -18,7 +18,7 @@ namespace ICSharpCode.Profiler.Controller.Data
 		List<CallTreeNode> unitTests;
 		
 		/// <summary>
-		/// Creates a new UnitTestRootCallTreeNode. 
+		/// Creates a new UnitTestRootCallTreeNode.
 		/// </summary>
 		public UnitTestRootCallTreeNode(IEnumerable<CallTreeNode> unitTests)
 		{
@@ -46,58 +46,65 @@ namespace ICSharpCode.Profiler.Controller.Data
 			}
 		}
 		
-		/// <inheritdoc/>		
+		/// <inheritdoc/>
 		public override double TimeSpent {
 			get {
 				return 0;
 			}
 		}
-				
-		/// <inheritdoc/>	
+		
+		/// <inheritdoc/>
 		public override int RawCallCount {
 			get {
 				return 0;
 			}
 		}
-				
-		/// <inheritdoc/>	
+		
+		/// <inheritdoc/>
 		public override CallTreeNode Parent {
 			get {
 				return null;
 			}
 		}
-				
-		/// <inheritdoc/>	
+		
+		/// <inheritdoc/>
 		public override CallTreeNode Merge(System.Collections.Generic.IEnumerable<CallTreeNode> nodes)
 		{
 			// throw new ShouldNeverHappenException();
 			throw new NotSupportedException("Cannot merge a UnitTestRootCallTreeNode (should never be possible)");
 		}
-				
-		/// <inheritdoc/>	
+		
+		/// <inheritdoc/>
 		public override int GetHashCode()
 		{
 			return this.unitTests.Aggregate(0, (sum, item) => sum ^= item.GetHashCode());
 		}
-				
-		/// <inheritdoc/>	
+		
+		/// <inheritdoc/>
 		public override bool Equals(CallTreeNode other)
 		{
 			return (other is UnitTestRootCallTreeNode) && (other as UnitTestRootCallTreeNode).unitTests.SequenceEqual(unitTests);
 		}
-				
-		/// <inheritdoc/>	
+		
+		/// <inheritdoc/>
 		public override IQueryable<CallTreeNode> Callers {
 			get {
 				return Enumerable.Empty<CallTreeNode>().AsQueryable();
 			}
 		}
-				
-		/// <inheritdoc/>	
+		
+		/// <inheritdoc/>
 		public override IQueryable<CallTreeNode> Children {
 			get {
 				return unitTests.AsQueryable();
 			}
 		}
+
+		/// <inheritdoc/>
+		public override double TimeSpentSelf {
+			get {
+				return 0;
+			}
+		}
 	}
 }

src/AddIns/Misc/Profiler/Controller/Data/UnmanagedCallTreeNode.cs

@@ -94,6 +94,12 @@ namespace ICSharpCode.Profiler.Controller.Data
 				return this.CpuCyclesSpent / (1000.0 * this.dataSet.ProcessorFrequency);
 			}
 		}
+		
+		public override double TimeSpentSelf {
+			get {
+				return this.CpuCyclesSpentSelf / (1000.0 * this.dataSet.ProcessorFrequency);
+			}
+		}
 
 		public override CallTreeNode Merge(IEnumerable<CallTreeNode> nodes)
 		{

src/AddIns/Misc/Profiler/Frontend/Controls/CallTreeNodeViewModel.cs

@@ -330,20 +330,18 @@ namespace ICSharpCode.Profiler.Controls
 		
 		public string TimeSpentSelf {
 			get {
-				if (!node.IsThread) {
-					double value = node.TimeSpent - node.Children.Aggregate(0.0, (sum, item) => sum + item.TimeSpent);
-					return value.ToString("f6") + "ms";
-				} else
+				if (!node.IsThread)
+					return node.TimeSpentSelf.ToString("f6") + "ms";
+				else
 					return null;
 			}
 		}
 		
 		public string TimeSpentSelfPerCall {
 			get {
-				if (!node.IsThread) {
-					double value = node.TimeSpent - node.Children.Aggregate(0.0, (sum, item) => sum + item.TimeSpent);
-					return (value / node.CallCount).ToString("f6") + "ms";
-				} else
+				if (!node.IsThread)
+					return (node.TimeSpentSelf / node.CallCount).ToString("f6") + "ms";
+				else
 					return null;
 			}
 		}
@@ -369,7 +367,7 @@ namespace ICSharpCode.Profiler.Controls
 		public Visibility CheckBoxVisibility
 		{
 			get {
-				if (this.Children.Count > 0)
+				if (node.HasChildren)
 					return Visibility.Visible;
 				else
 					return Visibility.Hidden;