multithreading or multiprocessing

Question

I am designing a dedicated syslog-processing daemon for Linux that needs to be robust and scalable and I\'m debating multithread vs. multiprocess.

The obvious objection

Answer 1

Do you need to share updating data between the instances where the updates are frequent and IPC would be too expensive? In that case multithreading is probably better. Otherwise you have to weigh whether the robustness of separate processes or the ease of thread creation/communication is more important to you.