What is the difference between threading and parallelism in C#?

What is the difference between threading and parallelism in C#?

Threading involves managing multiple threads of execution within a single process, while parallelism refers to executing multiple tasks simultaneously, often across multiple processors.

Can you give me an example of how to implement threading in C#?

Sure! You can use the Thread class to create a new thread. Here's a simple example:

using System;
using System.Threading;

class Program
{
    static void Main()
    {
        Thread thread = new Thread(new ThreadStart(DoWork));
        thread.Start();
    }

    static void DoWork()
    {
        Console.WriteLine("Thread is working!");
    }
}

What about parallelism? How can I achieve that in C#?

You can use the Parallel class for parallelism. For example:

using System;
using System.Threading.Tasks;

class Program
{
    static void Main()
    {
        Parallel.For(0, 10, i =>
        {
            Console.WriteLine($"Processing {i}");
        });
    }
}

Are there any performance considerations I should be aware of?

Yes, using too many threads can lead to context switching overhead, while parallelism can improve performance but may require careful management of shared resources to avoid contention.