Debugging hanging C# program

[zfeld]

I have a multi-threaded C# program that hangs for 5-10 seconds
intermittently. Are there any built in tools in Visual Studio .NET to
somehow instrument my code to see where my performance problems are. It is
rough debugging it using breakpoints due to the multi-threading.

 

[Nicholas Paldino [.NET/C# MVP]]

zfield,

You can use the CLR profiler to get an idea of how your code is running.
You can find it at the Tools and Utilities page at the .NET Developer Center
on MSDN at (watch for line wrap):

http://msdn.microsoft.com/netframework/downloads/tools/default.aspx

Hope this helps.

 

[Dan Bass]

To start with I'd give your threads a meaningful name (if at all possible),
then write some sort of debug logger that writes text to disk. From here you
can litter your code with "trace" statements that get logged to a text file.
If you add a time stamp to each entry, you then can trace, from one point in
a thread (using your thread name) to another.

Be sure to make your logging mechanism thread safe.

Here's an example...

#if DEBUG
readonly object grabInterfaceLock = new object();
#endif

public void WriteLog ( string log )
{

#if DEBUG
lock ( grabInterfaceLock )
{
try
{
// filename is...
string filename = @"C:\debuglog.txt";

// prepend the date
log = DateTime.Now.ToString() + " - " + log;

// open up the file and append data
StreamWriter logwriter = File.AppendText(filename);
logwriter.WriteLine( log );
logwriter.Close();
}
catch ( Exception )
{
}
}
#endif

}

 

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,


take a look at http://www.automatedqa.com/products/aqtime/index.asp I tested
it a time ago and it was very good, unfortunally my company did not purchase
it.

cheers,