Operating System Support for Transaction Management - The following are the main benefits of operating system (OS)-supported transaction management: typically, DBMSs use their own semaphores to guarantee mutually exclusive access to shared resources. Since these semaphores are implemented in user space at the level of the DBMS application software, the OS has no knowledge about them. Hence if the OS deactivates a DBMS process holding a lock, other DBMS processes wanting this locked resource get blocked. Such a situation can cause serious performance degradation. OS-level knowledge of semaphores can help eliminate such situations. Semaphores are data structures used for synchronized and exclusive access to shared resources for preventing race conditions in a parallel computing system. Given this scenario, discuss synchronization issues related to DMBS development.