Study on Interrupt Mechanism in the Linux 2.6 Kernel

A real-time improvement scheme of Linux 2.6 kernel is proposed on the basis of the method of controlling execution time of interrupt,this scheme can resolve the problem of long response time caused by frequent interrupts in the execution process of Linux real-time tasks.By analyzing Linux 2.6 kernel interrupt mechanism as well as the interruption mechanism of the kernel branded Ingo Molar real-time kernel patch,and arranging an appropriate execution time for interrupt by comparing with the current task's real-time priority,the task's real-time response was realized.Experimental results show that the interrupt response time of improvement scheme is shorter than that of the kernel with branded Ingo Molar real-time kernel patch.