How to get the current ProcessID?

Question

What\'s the simplest way to obtain the current process ID from within your own application, using the .NET Framework?

Answer 1

The upcoming .NET 5 introduces Environment.ProcessId which should be preferred over Process.GetCurrentProcess().Id as it avoids allocations and the need to dispose the Process object.

https://devblogs.microsoft.com/dotnet/performance-improvements-in-net-5/ shows a benchmark where Environment.ProcessId only takes 3ns instead of 68ns with Process.GetCurrentProcess().Id.