earticle

영어

Processes can be executed concurrently in operating systems; they can be created
dynamically and then terminate, i.e. process creation and termination are required for
program execution. However the costs involved in process creation and termination make this
procedure expensive. This procedure expensive, thus degrading the performance of program
execution. To solve this problem, a fast process creation and termination mechanism is
proposed. This mechanism is implemented by recycling process resources. In order to
improve the efficiency of recycling, the management of preserved process resources for
recycling is an important factor.
In this paper, we propose an improved resource management method for recycling
process resources and an adaptive control mechanism. In the method, only one process
resource with a program image is preserved for each program that occurs with high
frequency of program execution. The proposed method can reduce the amount of memory
consumption for preserved process resources in a concurrent execution environment. We also
describe the implementation of the proposed method on the Tender operating system and
report the results of our experiments.