3 ms·

Can happen at any moment != will happen most of the time

• inshadows 5y ago
  Preemption sure is non-deterministic from POV of the thread. But what's the point of it anyway? It's not like you handle HW interrupts in user-space and need to wait for some value in memory mapped register.
  • dataflow 5y ago
    > But what's the point of it anyway? Some people empirically find it improves their applications' performances in some situations.
    • anarazel 5y ago
      It's also not rare to end up needing spinlocks within more elaborate lock implementations or within other low level primitives.