5.9. Race c maintains an withdraw (a withdrawn fro Untitled - Notepad File Edit Format View Help 5.19. Assume that a system has multiple processing cores. For each of the following scenarios, describe which is better locking mechanism-a spinlock or a mutex lock where waiting processes sleep while waiting for the lock to become available: The lock is to be held for a short duration. The lock is to be held for a long duration. A thread may be put to sleep while holding the lock