timing

OpenRa.Game/Game.cs

@@ -82,6 +82,8 @@ namespace OpenRa.Game
 			PlaySound("intro.aud", false);
 
 			skipMakeAnims = false;
+
+			sw = new Stopwatch();
 		}
 
 		static void LoadMapBuildings( IniFile mapfile )
@@ -139,6 +141,10 @@ namespace OpenRa.Game
 		const int oreFrequency = 1;
 		static int oreTicks = oreFrequency;
 		public static int RenderFrame = 0;
+		public static double RenderTime = 0.0;
+		public static double TickTime = 0.0;
+
+		public static Stopwatch sw;
 
 		public static void Tick()
 		{
@@ -146,6 +152,7 @@ namespace OpenRa.Game
 			int dt = t - lastTime;
 			if( dt >= timestep )
 			{
+				sw.Reset();
 				lastTime += timestep;
 
 				if( orderManager.Tick() )
@@ -163,11 +170,15 @@ namespace OpenRa.Game
 					foreach( var player in players.Values )
 						player.Tick();
 				}
+
+				TickTime = sw.ElapsedTime();
 			}
 
+			sw.Reset();
 			++RenderFrame;
 			viewport.cursor = controller.ChooseCursor();
 			viewport.DrawRegions();
+			RenderTime = sw.ElapsedTime();
 		}
 
 		public static bool IsCellBuildable(int2 a, UnitMovementType umt)

OpenRa.Game/Graphics/WorldRenderer.cs

@@ -99,7 +99,10 @@ namespace OpenRa.Game.Graphics
             
             lineRenderer.Flush();
 
-			renderer.DrawText(string.Format("RenderFrame {0} Tick {1}", Game.RenderFrame, Game.orderManager.FrameNumber), new int2(5, 5), Color.White);
+			renderer.DrawText(string.Format("RenderFrame {0} ({2:F1} ms) Tick {1} ({3:F1} ms)", 
+				Game.RenderFrame, Game.orderManager.FrameNumber,
+				Game.RenderTime * 1000, 
+				Game.TickTime * 1000), new int2(5, 5), Color.White);
 		}
 
 		const float conditionYellow = 0.5f;		/* todo: get these from gamerules */

OpenRa.Game/OpenRa.Game.csproj

@@ -76,6 +76,7 @@
   <ItemGroup>
     <Compile Include="GameRules\TechTree.cs" />
     <Compile Include="OrderManager.cs" />
+    <Compile Include="Stopwatch.cs" />
     <Compile Include="Traits\AcceptsOre.cs" />
     <Compile Include="Traits\Activities\Activity.cs" />
     <Compile Include="Traits\Activities\DeliverOre.cs" />

OpenRa.Game/Stopwatch.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Runtime.InteropServices;
+
+namespace OpenRa.Game
+{
+	class Stopwatch
+	{
+		[DllImport("kernel32.dll")]
+		static extern bool QueryPerformanceCounter(out long value);
+		[DllImport("kernel32.dll")]
+		static extern bool QueryPerformanceFrequency(out long frequency);
+
+		long freq, start;
+
+		public Stopwatch()
+		{
+			QueryPerformanceFrequency(out freq);
+			QueryPerformanceCounter(out start);
+		}
+
+		public double ElapsedTime()
+		{
+			long current;
+			QueryPerformanceCounter(out current);
+
+			return (current - start) / (double)freq;
+		}
+
+		public void Reset()
+		{
+			QueryPerformanceCounter(out start);
+		}
+	}
+}