Linux kernel page table replacement-based method for tracking memory access model

The invention discloses a Linux kernel page table replacement-based method for tracking a memory access model. As different between the speed of a processor and the memory access speed becomes larger and larger, a memory system becomes a bottleneck of system performance. Application programs of different natures have different memory access models and different memory behavior optimization modes. However, the prior tool cannot track the memory accesses of the programs effectively and therefore causes complex memory optimization. The method of the invention is used in a Linux system and replaces the page table of a target process by changing Linux kernel. A new page table stores only one item of a non-code segment web page, so missing page interrupt occurs every time the target process accesses a memory and virtual page access sequence of the specific target process, namely, the memory access model of programs can be tracked by recording corresponding address when the kernel processes the missing page. The method has the characteristic of light weight, and can quickly track memory access, track out a small amount of data and avoid influencing the normal operation of other processes in an operation system. The method for tracking the memory access model can guide the optimization of memory behaviors.