Use ConcurrentQueue and ConcurrentDictionary with TPL (Simple example), C#

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//Use ConcurrentQueue and ConcurrentDictionary with TPL

//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using System.Collections.Concurrent;
using System.Threading.Tasks;
using System.Threading;

namespace Rextester
{
    
    
    public class Person{
   
        public int Id {get;set;}
        public string Name {get;set;}
    
    }
    
    public class Program
    {
        
        public static ConcurrentQueue<Person> concurrentQueue = new ConcurrentQueue<Person>();
        
        public static void Main(string[] args)
        {
            
            var items = 50;
            for (int i = 0; i < items ; i++)
            {
                var person = new Person();
                person.Id = i;
                person.Name = string.Format("My name is {0}", i);
                
                concurrentQueue.Enqueue(person);
            }
            
            
            var people = new ConcurrentDictionary<int,string>(items, items);
            
            Task[] queueTasks = new Task[20];
            for (int i = 0; i < queueTasks.Length; i++)
            {
                queueTasks[i] = Task.Factory.StartNew(() =>
                {
                    while (concurrentQueue.Count > 0)
                    {
                        Person currentElement;
                        bool success = concurrentQueue.TryDequeue(out currentElement);
                        if (success)
                        {
                            people.TryAdd(currentElement.Id, currentElement.Name);
                        }
                    }
                });
            }
            
            Task.WaitAll(queueTasks);
            
            string name = string.Empty;
            
            for (int i = 0; i < items ; i++)
            {
            
                people.TryGetValue(i, out name);
                Console.WriteLine(name);
            }
            
        }
    }
}

Show compiler warnings [ + ] Show input
Compilation time: 0.08 sec, absolute running time: 0.09 sec, cpu time: 0.08 sec, average memory usage: 18 Mb, average nr of threads: 5