try catch performance hit?

Good idea Ryan, I'll run a few tests.

I would use it in a console application, print the DateTime when it starts without the try/catch and the DateTime that it finishes. Then do the same when using a try/catch, and see what the time difference is.

Alan18y ago

Well, on the face of it, you shouldn't have much to worry about there but, as with all performance worries, the best solution is to try it both ways using a large number of iterations and see whether the time difference is measurable.

Kevin18y ago

The method is almost literally:

try
{
               object a = Method();
}
catch(System.Exception m)
{
                MessageBox.Show(m.Message);
}
finally
{
      //Cuts a thread elsewhere
}

Alan18y ago

There is a performance hit in using try/catch/finally but how big it is will depend on:

1. What you're doing within the try statement.

2. The additional cost of doing something else (such as testing a method return value) if there's an error.

In view of this it's very difficult to put a figure on it but, if you think in terms of a 10 to 20% hit on average, then I don't think you'll be far away.