Research on solution of reducing priority inversion problem in μC/OS-Ⅱ;

Study of priority inversion in embedded system based on SolCS;

Research on priority inversion based on fault-tolerant;

The protocol solves priority reversal problem,has other good characteristics,such as preventing system dead lock,etc.

Aiming at the priority inversion of the process scheduling,through the analysis of Linux kernel function this paper mainly studies the process scheduling function,mutex based on semaphore,it makes priority inheritance protocol into being on the base of modified the mutex.

Aiming at the priority inversion of the process scheduling, through the analysis of the process scheduling in Linux kernel.

In this text some ways to solve priority inversion are presented.

Real-time performance is an important specification in embedded systems and priority inversion can affect the real-time performance significantly.

Based on analyzing the linux kernel codes,this paper expatiates on the realization of the mechanism of semaphore in linux kernel,and analyzes the priority inversion problem in this mechanism.

Solving priority inversion problem of μC/OS based on priority inheritance protocols;

Through modification oflinux source codes, preemptivelinux kernel can reduce delayed time ofsystem response, and improve real-time performance of linux, but at the same time bring a problem of priority inversion.