TCLocks

Scalable transparent delegation locking protocols without application modification

TCLocks is a family of locking protocols that use transparent delegation to improve scalability of synchronization in multi-core systems. The waiter encodes its critical section on its stack and notifies the lock holder (combiner), which executes the critical section on the waiter's behalf via a light-weight context switch. This avoids transferring shared data between cores. TCLocks require no modifications to application logic and provide up to 5.2x better performance than recent locking algorithms.