Memory Migration Method and Device

摘要

A memory migration method and device relate to the field of computer application technologies. A memory page is combined into a memory block, which reduces a quantity of migrations, and improves central processing unit (CPU) utilization. The method includes receiving, by a first node, a migration instruction sent by a second node, sequentially scanning each memory page between a physical address of a start memory page accessed by a target process and a physical address of an end memory page accessed by the target process, where the memory page is a memory page accessed by the target process or a memory page accessed by a non-target process, determining whether each memory page meets a block combination condition, combining a memory page that meets the block combination condition into a corresponding memory block, and migrating the corresponding memory block to a memory area of the second node.

主权项

1. A memory migration method, comprising:
receiving, by a first node, a migration instruction sent by a second node, wherein the migration instruction is used to instruct to migrate, from a memory area of the first node to a memory area of the second node, all memory pages located on the first node and accessed by a target process, and wherein the target process is a process running on the second node; sequentially scanning, by the first node, each memory page between a physical address of a start memory page accessed by the target process and a physical address of an end memory page accessed by the target process; determining, by the first node, whether each memory page meets a block combination condition; combining a memory page that meets the block combination condition into a corresponding memory block; and migrating, by the first node, the corresponding memory block to the memory area of the second node.