set priority for Parallel.For loop

Question

Ok, here\'s the situation: My main/UI thread (call it Thread1) is used for acquiring a batch of images from a phsycial document scanner. When a batch has been acquired, a se

Answer 1

Is there a way to "limit" a Parallel.For loop so that it does not max out my processors?

Yes, you can add an Options with MaxDegreeOfParallelism=N.

Or to set the processing priority?

No. It is a ThreadPool (borrowed) thread. Don't change its properties. Actually it's a bunch of pool threads.

Or am I misunderstanding how a Parallel.For loop works? Is it blocking Thread1 somehow?

Yes, from the outside Parallel.For(...) is a blocking call. So run it on a separate Task or Backgroundworker, not from the main thread.