Readers/Writers Lock, Lock Granularity: Coarse Grained, Fine Grained, Optimal and Lazy Synchronization (TODO) Readers/Writers Lock, Lock Granularity: Coarse Grained, Fine Grained, Optimal and Lazy Synchronization (TODO) Readers/Writers Lock, Lock Granularity: Coarse Grained, Fine Grained, Optimal and Lazy Synchronization (TODO)