Improvement on Buffer Management Strategy to Enhance System Performance

Abstract

This paper proposed the issues of system performance and power consumption that come from the management of Direct Memory Access􀎰DMA􀎱 Buffer Resource via the “up“ Semaphore release mechanism in Linux Kernel and submitted the “up_trigger Method” to improve the existing problems. “up_trigger Method” is a new way to manage the Semaphores in Linux Kernel that can reduce the Context Switching﹙CS﹚to improve the system performance for buffer management strategy of the embedded system. Besides, it can reduce the power consumptions due to the decreasing of Context Switching.