A Resource Management Method for Improving Recycling Ratio in Recycling Process Elements

摘要

A process is a program in execution. Processes can be executed concurrently in operating Systems (OS) and they may be created and be deleted dynamically. Process creation and termination are required for program execution. They are an important processing, but the cost of them is expensive. The cost of them affects the execution performance of programs. We proposed a fast process creation and termination mechanism by recycling process elements. The management of preserved process elements is an important problem for recycling. We also proposed an efficient resource management for recycling process elements. The proposed method can reduce the amount of memory consumption of preserved resources. It focused on frequency of program execution, but it is insufficient to reduce the cost. In this paper, we propose an improved resource management method for recycling process elements. In the method, only one process element with program image is preserved for each program with high frequency in program execution. The method can reduce the amount of memory consumption of preserved process elements. We also describe the implementation of proposal method on Tender operating system and report the contents of experiments and the result of them.