TaskCreationOptions.LongRunning option and ThreadPool

c# .net-4.0 scheduled-tasks task-parallel-library threadpool
Kaveh Shahbazian picture Kaveh Shahbazian · Jun 24, 2010 · Viewed 12k times · Source

TPL uses Task Schedulers to coordinate tasks. According to official document, default task scheduler uses Thread Pool, but if TaskCreationOptions.LongRunning option is presented then it will create a dedicated thread for that task (A).

Question: As of now MSDN documents for Visual Studio 2010 are not ready and current online MSDN is not finalized; does anyone knows if (A) is true or false?

Answer

Mau picture Mau · Jun 24, 2010

Yes, LongRunning forces the creation of a new thread outside the pool. Here's some pseudo-disassembled code from the latest framework version:

...
if (task.Options HasFlag LongRunning) then
    create new Thread thread
    thread.Start(task)
...

Edit: converted from ugly C# to pseudocode.

Related questions

What is the best way to implement a "timer"?

What is the best way to implement a timer? A code sample would be great! For this question, "best" is defined as most reliable (least number of misfires) and precise. If I specify an interval of 15 seconds, I want the …

Read More
An ASP.NET setting has been detected that does not apply in Integrated managed pipeline mode

I Installed DotNetOpenAuth SDK-3.4.5.10201.vsix and I can't get it working. It works locally (when I run as localhost) but when i try to publish it ain't working. The IIS error message I get is Error Summary HTTP Error 500.22 - …

Read More
How to easily initialize a list of Tuples?

I love tuples. They allow you to quickly group relevant information together without having to write a struct or class for it. This is very useful while refactoring very localized code. Initializing a list of them however seems a bit …

Read More