Visual Studio Performance Analysis in 10 minutes

[NewsBot]

Ever wondered how much time you spend waiting for Visual Studio to respond?

Well its been driving me nuts for a while so I wrote a little app to tracks the time that VS 2008 spends "not responding".

I think you'll be shocked by the results on solutions with 15+ projects.

 

Hopefully making this information available to others will motivate Microsoft to fix these problems.

 

Heres the code for your enjoyment (tested with VS 2008)..

 

using System;

using System.Diagnostics;

using System.Runtime.InteropServices;

using System.Threading;

 

namespace CalulateHangTime

{

[Flags]

public enum SendMessageTimeoutFlags : uint

{

SMTO_NORMAL = 0x0000,

SMTO_BLOCK = 0x0001,

SMTO_ABORTIFHUNG = 0x0002,

SMTO_NOTIMEOUTIFNOTHUNG = 0x0008

}

 

public static class ExternalMethods

{

[DllImport("user32.dll", SetLastError = true)]

public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

 

[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]

public static extern IntPtr SendMessageTimeout(IntPtr hWnd, uint Msg,

UIntPtr wParam, IntPtr lParam, SendMessageTimeoutFlags fuFlags,

uint uTimeout, out UIntPtr lpdwResult);

}

 

class Program

{

static readonly uint WAIT_MILLISECONDS = 2;

static readonly int SLEEP_MILLISECONDS = 1000;

 

static void Main(string[] args)

{

long seconds = 0;

Stopwatch stopWatch = new Stopwatch();

stopWatch.Start();

while (true)

{

IntPtr hWnd = ExternalMethods.FindWindow("wndclass_desked_gsk", null);

if (hWnd == IntPtr.Zero)

throw new InvalidOperationException("Handle to window could not be found");

 

 

UIntPtr result;

IntPtr success = ExternalMethods.SendMessageTimeout(hWnd, 0, UIntPtr.Zero, IntPtr.Zero,

SendMessageTimeoutFlags.SMTO_ABORTIFHUNG, WAIT_MILLISECONDS, out result);

 

if (success == IntPtr.Zero)

{

seconds += SLEEP_MILLISECONDS / 1000;

 

Console.WriteLine("Visual Studio is hung. {0}/{1} seconds wasted", seconds, stopWatch.Elapsed.TotalSeconds);

}

else

{

Console.WriteLine("Visual Studio is running fine.");

}

 

Thread.Sleep(SLEEP_MILLISECONDS);

}

}

}

}

 

 

 

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