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Wow. I can see why you are called grumpy.
- Realtime has no strict meaning. It is context dependent. (Japanese speaking vs English? lol)
- I have already understood that trade off exists. Nobody's...

This is true. The border of using C++ compiler for mostly C code had already been crossed anyways :)

Is this obvious? In ideal circumstances, keeping threads suspended and waiting for signal incurs zero computation cost. In addition, the time to activate that thread will have zero delay. If it is...

Nothing wrong with conflict in what is realtime. From my view, 120Hz is needed for crisp refresh rate when using stereo vision. You could say this is soft-realtime for which the deadline missed is...

Firstly, I realise that my question is ill-posed. I am more interested in drawing upon others experiences, methodology or approach. I am not looking for a magic answer, just your view or personal...

For a realtime application, where performance matters. What is the general view of getting better performance. Using threads spawned on the fly (pthread_create), or preallocate group of threads with...