Research on CodeCache Management Strategy Based on Code Heat in Dynamic Binary Translator

摘要

Software verification and validation play an important role in the development process of equip embedded software. It is a research hot spot in software testing field to adopt full digital simulation test environment based on a virtual target machine, which has the advantages of not relying on hardware, convenient fault injection etc. CodeCache management strategy is the key factor affecting the speed of the full digital simulation. It has analyzed the deficiency of existing translation caching methods and proposed a translation cache partition management strategy based on code heat. This strategy has considered the temporal and spatial locality of the program execution and the replacement cost of Cache, realizing the efficient management of CodeCache. The test result shows that the strategy has efficiently improved the simulation performance of virtual target machines.