Practical Escape Analysis in an Open World

A novel escape analysis framework thathandles the Java open-world features is proposed and evaluated. The novel approach analyzes a Java program withan optimistic view that the program is in a closed worldand applies optimizations aggressively. The framework alsoprovides a mechanism that controls the analysis complexity. The results show that the escape analysis framework,which has been implemented in Intel's Open Runtime Platform on X86, eliminated about 70% and 94% synchronization operations, and improved the runtime performance15.77% and 31.28%, for SPECjbb2000 and 209 db respectively.