Increase number of background workers processing at once

Question

I am writing a piece of C# .NET software which spawns a bunch of Background Workers. All of the workers immediately go into the "IsBusy" state, however, only 8 are ever processing through their DoWork method at once.

Is there a way to increase how many run at any one time?

This is how the code spawns the Background workers:

      foreach (RESTObjectPrintFile t in printFilesList)
      {
          BackgroundWorker bgWorker = new BackgroundWorker();
          bgWorker.DoWork += BgWorker_DoWork;
          bgWorker.RunWorkerCompleted += BgWorker_RunWorkerCompleted;

          bgWorkerList.Add(bgWorker);

          bgWorker.RunWorkerAsync(t);
      }

Answer 1

Try the following

ThreadPool.SetMinThreads(20, 20);

Also check this article http://www.albahari.com/threading/#_Optimizing_the_Thread_Pool

At the bottom it says:

The default value is one thread per core.