When should a task be considered “long running”?

Question

When working with tasks, a rule of thumb appears to be that the thread pool - typically used by e.g. invoking Task.Run(), or Parallel.Invoke() - shoul

Answer 1

As you point out, TaskCreationOptions.LongRunning's purpose is

to allow the ThreadPool to continue to process work items even though one task is running for an extended period of time

As for when to use it:

It's not a specific length per se...You'd typically only use LongRunning if you found through performance testing that not using it was causing long delays in the processing of other work.

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