Using Exceptions throwing in C#. Does it affect a

Question

Basically, the question is: Do the Exceptions in C# affect the performance a lot? Is it better to avoid Exceptions rethrow? If i generate an exception in my code, does it affect a performance?

Sorry for the sillines of the question itself

Answer 1

What most other folks said, plus: Don't use exceptions as part of the programming flow. In other words, don't throw an exception for something like, account.withdrawalAmount > account.balance. That is a business case.

The other biggie to look out for regarding performance is swallowing exceptions. It's a slippery slope, and once you start allowing your app to swallow exceptions, you start doing it everywhere. Now you may be allowing your app to throw exceptions that you don't know about because you are swallowing them, your performance suffers and you don't know why.

Answer 2

Exceptions as its name implies are intended to be exceptional. Hence you can't expect them to have been an important target for optimisation. More often then not they don't perform well since they have other priorites such as gathering detailed info about what went wrong.