Page missing processing method, device and system, electronic equipment and storage medium

Abstract

The invention discloses a missing page processing method, device and system, electronic equipment and a storage medium. The method comprises the steps that a missing page processing request from a central processing unit is received, and the missing page processing request is triggered when the central processing unit determines that missing pages exist in page table entries; analyzing the missing page processing request to obtain missing page processing information carried by the missing page processing request; data writing operation or data reading operation is executed in a target storage object based on the missing page processing information, a processing result is obtained, and the target storage object is deployed in the FPGA chip; and feeding back the processing result to the central processing unit to enable the central processing unit to update the page table entry according to the processing result. According to the method, when the central processing unit determines that the page table entry has the missing page, the FPGA chip is requested to execute the missing page processing operation, the mode of accessing the FPGA chip is adopted to replace the original mode of accessing a disk, the central processing unit can conveniently and rapidly access, and meanwhile a large number of central processing unit resources do not need to be consumed any more.

Description

technical field [0001] The present application relates to the field of computer technology, and in particular, to a method, device, system, electronic device, and storage medium for processing page faults. Background technique [0002] Modern operating systems have implemented virtual memory technology, which regards main memory as an address space cache stored on disk, and only saves active areas in main memory. When the physical memory of the system is insufficient, the operating system will perform page swapping and transfer pages back and forth between the disk and the main memory. Because the access speed of the disk is very slow, frequent access to the disk will inevitably lead to system performance degradation. [0003] In the process of address mapping, if the page to be accessed is found in the page that is not in the memory, a page fault interrupt is generated. When a page fault occurs, if there is no free page in the operating system memory, the operating system ...

AI Technical Summary

Problems solved by technology

It takes hundreds of clock cycles for the CPU to access the main memory, and millions of clock cycles to access the disk. Therefore, every page swap requires a lot of CPU resources, which reduces the overall performance.

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