A Novel Cache Sharing Scheme and Implementation in Multi-core Real-time Linux System

Memory allocation and management of real-time task and sub real-time task have been becoming the hot problem that people concern all the time. Page coloring technology is a kind of practical method which can realize isolation of cache space. This article aimed at the problem of cache resource competition caused by shared memory on multi-core real-time system, to solve the collision of cache visit, put forward the scheme of cache space isolation based on page coloring technology and the realization method. The problem that data collide with the visit on cache can be finally avoided, by dividing the shared cache space.