When executing a list of tasks started through Task.Run, is it guaranteed that each one is executed on a different Thread?
When reading the documentation, it seems to me that this is the default behavior, while doing the tests I was validating through Thread.CurrentThread.ManagedThreadId.
I know that threads can be reused, what I need is for each to execute only one Task, in isolation, not running two Tasks on the same Thread.
static void Main(string[] args)
{
Console.WriteLine("Id Main: " + Thread.CurrentThread.ManagedThreadId);
for (int i = 0; i < 100; i++)
{
Task.Run(() =>
{
Console.WriteLine("Id Run " + i + ": " + Thread.CurrentThread.ManagedThreadId);
});
}
for (int i = 0; i < 100; i++)
{
var t = new Thread(() =>
{
Console.WriteLine("Id Thread " + i + ": " + Thread.CurrentThread.ManagedThreadId);
});
t.Start();
}
Console.ReadKey();
}
In this example you see that some Task.Run use the same thread. The Thread class always uses a different thread. Each one can be very well used in specific points, The Task.Run you can gain performance for not having to instanciate and to initiate a new thread for each action, but if each action is delayed, as for example I wait for a connection via socket , it may be more intentional to use the Thread itself, otherwise one action is waiting for another to complete.