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Links 1 through 1 of 1 by Atif Aziz tagged memory

64-bit address spaces come at the price of pointers requiring twice as much memory as 32-bit address spaces, resulting in increased memory usage. Increased memory usage is especially of concern on machines that are heavily loaded with memory-intensive applications; overall system performance can quickly deteriorate once physical memory is exhausted. This paper discusses a technique that reduces the memory usage of 64-bit pointers in the context of Java virtual machines through pointer compression, called Object-Relative Addressing (ORA). The idea is to compress 64-bit raw pointers into 32-bit offsets relative to the referencing object’s virtual address.

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