The example is about allocating threads to threadpools. It is not about utilizing existing threads in threadpools. Thats where YOU are mistaken. Your example

The example is about allocating threads to threadpools. It is not about utilizing existing threads in threadpools. Thats where YOU are mistaken. Your example has threads preallocated to core affinity. Which is what Im saying when I say run all pistons on the engine even when idle.