From 277b277c2e216619564dae718da1a14348506469 Mon Sep 17 00:00:00 2001
From: goyuken <goyuken@4bbf4f03-6f44-549e-7e59-35d4b0962838>
Date: Thu, 9 Oct 2014 01:49:44 +0000
Subject: [PATCH] benchmark savestate time to console

---
 BizHawk.Client.Common/SavestateManager.cs | 13 ++++++---
 BizHawk.Common/BizHawk.Common.csproj      |  1 +
 BizHawk.Common/SimpleTime.cs              | 32 +++++++++++++++++++++++
 3 files changed, 42 insertions(+), 4 deletions(-)
 create mode 100644 BizHawk.Common/SimpleTime.cs

diff --git a/BizHawk.Client.Common/SavestateManager.cs b/BizHawk.Client.Common/SavestateManager.cs
index c06391b3b1..1ec6be7034 100644
--- a/BizHawk.Client.Common/SavestateManager.cs
+++ b/BizHawk.Client.Common/SavestateManager.cs
@@ -3,6 +3,7 @@ using System.IO;
 
 using BizHawk.Common.BufferExtensions;
 using BizHawk.Common.IOExtensions;
+using BizHawk.Common;
 
 namespace BizHawk.Client.Common
 {
@@ -19,12 +20,14 @@ namespace BizHawk.Client.Common
 					(Global.Config.SaveStateType == Config.SaveStateTypeE.Default && !Global.Emulator.BinarySaveStatesPreferred))
 				{
 					// text savestate format
-					bs.PutLump(BinaryStateLump.CorestateText, (tw) => Global.Emulator.SaveStateText(tw));
+					using (new SimpleTime("Save Core"))
+						bs.PutLump(BinaryStateLump.CorestateText, (tw) => Global.Emulator.SaveStateText(tw));
 				}
 				else
 				{
 					// binary core lump format
-					bs.PutLump(BinaryStateLump.Corestate, bw => Global.Emulator.SaveStateBinary(bw));
+					using (new SimpleTime("Save Core"))
+						bs.PutLump(BinaryStateLump.Corestate, bw => Global.Emulator.SaveStateBinary(bw));
 				}
 
 				if (Global.Config.SaveScreenshotWithStates)
@@ -34,7 +37,8 @@ namespace BizHawk.Client.Common
 					// If user wants large screenshots, or screenshot is small enough
 					if (Global.Config.SaveLargeScreenshotWithStates || buff.Length < Global.Config.BigScreenshotSize)
 					{
-						bs.PutLump(BinaryStateLump.Framebuffer, (BinaryWriter bw) => bw.Write(buff));
+						using (new SimpleTime("Save Framebuffer"))
+							bs.PutLump(BinaryStateLump.Framebuffer, (BinaryWriter bw) => bw.Write(buff));
 					}
 				}
 
@@ -71,7 +75,8 @@ namespace BizHawk.Client.Common
 						}
 					}
 
-					bl.GetCoreState(br => Global.Emulator.LoadStateBinary(br), tr => Global.Emulator.LoadStateText(tr));
+					using (new SimpleTime("Load Core"))
+						bl.GetCoreState(br => Global.Emulator.LoadStateBinary(br), tr => Global.Emulator.LoadStateText(tr));
 
 					bl.GetLump(BinaryStateLump.Framebuffer, false, 
 						delegate(BinaryReader br)
diff --git a/BizHawk.Common/BizHawk.Common.csproj b/BizHawk.Common/BizHawk.Common.csproj
index 4c17748b74..782af816cd 100644
--- a/BizHawk.Common/BizHawk.Common.csproj
+++ b/BizHawk.Common/BizHawk.Common.csproj
@@ -69,6 +69,7 @@
     <Compile Include="QuickCollections.cs" />
     <Compile Include="Serializer.cs" />
     <Compile Include="SettingsUtil.cs" />
+    <Compile Include="SimpleTime.cs" />
     <Compile Include="SwitcherStream.cs" />
     <Compile Include="UndoHistory.cs" />
     <Compile Include="Util.cs" />
diff --git a/BizHawk.Common/SimpleTime.cs b/BizHawk.Common/SimpleTime.cs
new file mode 100644
index 0000000000..e58c58c32b
--- /dev/null
+++ b/BizHawk.Common/SimpleTime.cs
@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Diagnostics;
+
+namespace BizHawk.Common
+{
+	public class SimpleTime : IDisposable
+	{
+		private Stopwatch w;
+		private Action<int> f;
+
+		public SimpleTime(string s)
+			:this(t => Console.WriteLine("Elapsed time for {0}: {1}ms", s, t))
+		{
+		}
+
+		public SimpleTime(Action<int> f)
+		{
+			this.f = f;
+			w = new Stopwatch();
+			w.Start();
+		}
+
+		public void Dispose()
+		{
+			w.Stop();
+			f((int)w.ElapsedMilliseconds);
+		}
+	}
+}