Related articles Titleĭescribes how to create parallel for and foreach loops ( For and For Each in Visual Basic).ĭescribes how to create and run tasks implicitly by using Parallel.Invoke or explicitly by using Task objects directly.ĭescribes how to use the dataflow components in the TPL Dataflow Library to handle multiple operations. Although the TPL simplifies multithreaded scenarios, we recommend that you have a basic understanding of threading concepts, for example, locks, deadlocks, and race conditions, so that you can use the TPL effectively. Furthermore, parallelization, like any multithreaded code, adds complexity to your program execution.

For example, if a loop performs only a small amount of work on each iteration, or it doesn't run for many iterations, then the overhead of parallelization can cause the code to run more slowly. However, not all code is suitable for parallelization. NET Framework 4, the TPL is the preferred way to write multithreaded and parallel code. By using TPL, you can maximize the performance of your code while focusing on the work that your program is designed to accomplish.

In addition, the TPL handles the partitioning of the work, the scheduling of threads on the ThreadPool, cancellation support, state management, and other low-level details. The TPL dynamically scales the degree of concurrency to use all the available processors most efficiently. The purpose of the TPL is to make developers more productive by simplifying the process of adding parallelism and concurrency to applications. The Task Parallel Library (TPL) is a set of public types and APIs in the System.Threading and namespaces.

Tpl vs dpl