Lock Contention Minimization

The Java 2 SDK for Solaris minimizes lock contention in the VM by using thread-local data structures and finer-grained locking.

The VM core-locking architecture supports better granularity of VM locks. This fine-grained locking minimizes the number of contended paths of thread execution. Fewer contended paths means that one thread's execution is less likely to impede other threads. This results in better multiprocessor (MP) scaling capability. Fine-grained locking also enables the VM to conduct a larger number of concurrent operations.