What are the pros and cons of adding tasks before and after starting the thread pool?

Adding tasks before starting the pool:

• Pros:

  • You can prepare the entire set of tasks in advance, which simplifies control and planning.
  • The pool starts with a known number of tasks, which can simplify resource management.

• Cons:

  • No flexibility for dynamically adding tasks during operation.
  • If tasks arrive gradually, you have to wait for all of them before starting.

Adding tasks after starting the pool:

• Pros:

  • Allows dynamic addition of tasks as they arrive.
  • More flexible for systems with unpredictable task flow.

• Cons:

  • Requires additional synchronization and queue management.
  • There may be difficulties with proper pool termination if tasks are added constantly.

The choice of scenario depends on specific requirements: if tasks are known in advance — it's better to add before starting, if the task flow is dynamic — after starting.