multithreading on dual core machine?

Question

I have a dual core processor and according to the explanation I\'m able to use only 2 threads but actually I\'m able to launch more than 2 threads at same time:

Here

Answer 1

You can use more threads than you have processor cores. This can have several benefits: you can hide communication (e.g., file I/O or network) with computation, or get more processor time in time-slicing systems. With two cores, only two threads will physically be executing at the same time, but having more threads can increase performance. It's something you need to tune.