[Edit]

C#/.NET - max and min number of threads in thread pool

1 contributors

2 contributions

0 discussions

5 points

Created by:

Root-ssh

178170

To set up max and min number of threads in ThreadPool class, ThreadPool.SetMinThreads and ThreadPool.SetMaxThreads methods could be useful.

1. Max and min number of threads example

Edit

xxxxxxxxxx
 
using System;
using System.Threading;
​
namespace Test
{
    public class Program
    {
        static void Main(string[] args)
        {
            int tasksCount = 5;
            int iterationsCount = 5;
​
            WaitCallback callback = (object state) =>
            {
                int taskId = (int)state;
​
                for (int i = 0; i < iterationsCount; ++i)
                {
                    int iterationId = i + 1;
​
                    Console.WriteLine("Task " + taskId + "/" + tasksCount 
                        + ": Iteration " + iterationId + "/" + iterationsCount);
                }
            };
​
            ThreadPool.SetMinThreads(1, 1);
            ThreadPool.SetMaxThreads(2, 2);
​
            for (int i = 0; i < tasksCount; ++i)
            {
                int taskId = i + 1;
​
                ThreadPool.QueueUserWorkItem(callback, taskId);
            }
​
            Thread.Sleep(1000);
        }
    }
}

Output:

xxxxxxxxxx
 
Task 1/5: Iteration 1/5
Task 2/5: Iteration 1/5
Task 2/5: Iteration 2/5
Task 2/5: Iteration 3/5
Task 1/5: Iteration 2/5
Task 1/5: Iteration 3/5
Task 1/5: Iteration 4/5
Task 1/5: Iteration 5/5
Task 2/5: Iteration 4/5
Task 2/5: Iteration 5/5
Task 3/5: Iteration 1/5
Task 3/5: Iteration 2/5
Task 3/5: Iteration 3/5
Task 3/5: Iteration 4/5
Task 3/5: Iteration 5/5
Task 4/5: Iteration 1/5
Task 4/5: Iteration 2/5
Task 4/5: Iteration 3/5
Task 4/5: Iteration 4/5
Task 4/5: Iteration 5/5
Task 5/5: Iteration 1/5
Task 5/5: Iteration 2/5
Task 5/5: Iteration 3/5
Task 5/5: Iteration 4/5
Task 5/5: Iteration 5/5