Using System.Threading.Tasks.Parallel create new thread in the thread pool?

Question

Maybe I did not understand it right ... all the Parallel class issue :(

But from what I am reading now, I understand that when I use the Parallel I actually mobilize

Answer 1

Parallel does not deal with threads at all - it schedules TASKS to the task framework. THat then has a scheduler and the default scheduler goes to the threadpool. This one will try to find a goo number of threads (better in 4.5 than 4.0) and the Threadpool may slowly spin up new threads.

But that is not a functoin of parallel.foreach ;)

the Parallel.ForEach will create any new thread ???

It never will. As I said - it has 1000 foreach, then it queues 10.000 tasks, Point. THe Task factory scheduler will do what it is programmed to do ((you can replace it). Generally, default - yes, slowly new threads will spring up WITHIN REASON.