Are there any differences between:
Dim Block As New TransformBlock(Of Integer, Integer)(Function(_i)
//sync proccessing
Return j
End Function)
And
Dim Block As New TransformBlock(Of Integer, Integer)(Async Function(_i)
Return Await something
End Function)
Even if I use a Sync delegate, setting MaxDegreeOfParallelerism of block affects its perfomance. So, as I get it, block makes a Task(Of T) from its sync delegate and works with its instances.
Which of this variants preferably to use?
Use the asynchronous delegate when you have naturally-asynchronous work to do (e.g., I/O-bound).
Use the synchronous delegate when you have naturally-synchronous work to do (e.g., CPU-bound).
Neither one is "better;" it just depends on what kind of work you need to do.