threading - basics and application

1023 vs 1000 threads

1. Threading in Windows Forms

One of the issues which frequently comes up in newsgroups is how to handle threading in a UI. There are two golden rules for Windows Forms:

2. The Thread Pool and Asynchronous Methods

The point of the thread pool is to avoid creating lots of threads for short tasks. Thread creation isn't particularly cheap, and if you start lots of threads, each doing only just enough work to warrant being run on a different thread in the first place, the cost of creation could significantly hamper performance. The thread pool solves that by having a "pool" of threads which have already been created and are just waiting for work items. When they've finished executing a work item, they then wait for the next one, etc. By default, the thread pool has 25 threads per processor. Note that the thread pool isn't just used for whatever asynchronous calls you make - the .NET framework libraries use it as well, and things can go badly wrong (usually resulting in a deadlock) if all the threads are used and some of them depend on other tasks which are scheduled. (For instance, if one thread is waiting for the results of another work item, but that work item is never run because there are no free threads.) This is a good reason to avoid using the thread pool for particularly long-running tasks. Personally I usually stick to creating a new thread for anything but pretty trivial tasks. If the thread's going to be running for more than a few seconds, the cost of creating the thread is going to be relatively insignificant.

3. What .NET Threads Are. Part 1

With the advent of multi-core processors, multithreading has become almost indispensable in the development of applications. It is multi-threading that gives significant performance gain when using multiple processor cores.

4. Ways of creating multi-threaded applications in .NET (Part 2). ThreadPool Class

In Part 1 of this article, we talked about what threads are in .NET. Now, we want to dwell on the methods of background and asynchronous execution of threads in .NET apps.

These methods have advantages and disadvantages. They are not always convenient to use, but generally, background and asynchronous execution of threads offers wide opportunities in executing separate background threads for both small and long tasks.

5. The managed thread pool

The System.Threading.ThreadPool class provides your application with a pool of worker threads that are managed by the system, allowing you to concentrate on application tasks rather than thread management. If you have short tasks that require background processing, the managed thread pool is an easy way to take advantage of multiple threads. Use of the thread pool is significantly easier in Framework 4 and later, since you can create Task and Task objects that perform asynchronous tasks on thread pool threads.

6. ThreadPool Class

Provides a pool of threads that can be used to execute tasks, post work items, process asynchronous I/O, wait on behalf of other threads, and process timers.

7. ThreadPool max threads

I've got some trouble with .NET's ThreadPool (.NET 4). I've read that by default .NET has a limit of 25 threads per processor, but according to forum posts on SO and on other places, I can increase the limit with the below code.

8. Understanding thread pools in C#

Take advantage of thread pools to create and use threads on demand and improve the responsiveness of your application

9. Thread Pool In .NET Core And C#

Creation and destruction of new threads comes with a cost and it affects an application’s performance. Threads can also be blocked or go into sleep or other unresolved states. If your app doesn’t distribute the workload properly, worker threads may spend the majority of their time sleeping. This is where thread pool comes in handy.

10. Thread Pooling in C#

In this article, I am going to discuss Thread Pool in C# with examples. Please read our previous article where we discussed the Performance Testing of a multithreaded application in C#. As part of this article, we are going to discuss the following pointers.

11. Performance Testing of a Multithreaded Application

In this article, I am going to discuss the Performance Testing of a multithreaded application in C# with an example. Please read our previous article where we discussed Deadlock in C#. As part of this article, I will show you the performance implications of a multithreaded program when we run the application on a machine having a single core/processor versus a machine multi-core/processor.

12. How Thread pool works in C#

When a request sent to asp.net application A thread is created to handle the request. When a thread is created, some resources such as memory are allocated to the thread. Finally, when the job is done, Garbage Collector destroys the object created for the thread. The thread life cycle is as follows:

13. C# THREAD POOLING USING EXAMPLE STEP BY STEP

This article is bit advance version of threading so if you have landed here directly then I would like to request you to read our previous article on Threading and Types of Threading, Here you will understand how to create thread objects and different types of thread methods but if you know threading and particularly looking for this article then continue reading this article.

14. C# ThreadPool Usage

This C# tutorial shows how to use the ThreadPool type from System.Threading.

15. C# ThreadPool

Use the ThreadPool type from System.Threading. Create a WaitCallback object.

16. C# - Threading, Tasks, Async Code and Synchronization Techniques - Part 2

In Part 1 of this small series on Threading, Tasks, Async Code and Synchronization Techniques we talked about:

17. C# - Threading, Tasks, Async Code and Synchronization Techniques - Part 1

In this small series, we will begin an extremely interesting journey, as we are going to start learning about Threads, Tasks / Parallel Class, Async code and Synchronization Techniques (locks, semaphores etc).

18. General usage of ThreadPool

The default number of available workers is 1023 and 1000 for asynchronous I/O threads. These values are flexible, so that the developer can dynamically adapt them to the current needs.

ThreadPool is a .NET implementation of the thread pool pattern. What it does is it allows a number of threads to be run independently in a thread queue for the current application.

19. C# : UNDERSTANDING THREADS and threadpool

Real world software uses concurrency. As you know concurrency has several advantages, main thing is it simulates several things in one time concept. .NET gives three ways for the developers to achieve concurrency while we write code. They are: 1) Thread 2)ThreadPool 3)Task

20. Jon Skeet's C# and .NET articles and links

The code in all articles is C#-based, as that's the background I come from. Many of the concepts in the C# articles will be applicable to other .NET languages, but there may be some wrinkles which are C#-specific. The framework articles should be more language-agnostic, even though they are couched in C# terms.

21. C# ThreadPool class (thread pool)

The CLR thread pool does not create threads immediately when the CLR is initialized. Instead, the thread pool initializes a thread when the application wants to create threads to run tasks