Method and device for requesting remote memory

Abstract

The embodiment of the invention discloses a method and device for requesting a remote memory, and relates to the field of computers. The method and device for requesting the remote memory are used for shortening the response time of a system and improving the user experience. The method particularly comprises the steps that when a newly added process is started on a node currently, if the newly added process once operates on the node, memory requirement information of the newly added process and memory requirement information of a currently started process are obtained, wherein the memory requirement information of the newly added process and the memory requirement information of the currently started process are stored on the node; according to the memory requirement information of the newly added process and the memory requirement information of the currently started process, the size of a needed memory at each moment for simultaneously operating the newly added process and the started process with a preset time starting from the current moment is estimated; if the maximum value of the estimated size of the memory is larger than the size of a physical memory of the node, the remote memory is requested from a cloud manager.

Description

technical field [0001] The invention relates to the field of computers, in particular to a method and device for requesting remote memory. Background technique [0002] A large-scale data center may include tens of thousands of server nodes (hereinafter referred to as nodes), and various applications may run on each node, and each application corresponds to a process at runtime. Due to the limitation of the hardware structure of the node, the size of the physical memory of the node is also limited (for example, the size of the physical memory of the node may be 8G). When there are too many processes running on a node at the same time, and the size of the memory required by the process is greater than the size of the physical memory of the node, the problem of insufficient memory will occur. [0003] In order to solve the problem of insufficient memory, a method of requesting remote memory is proposed in the prior art. The system architecture is as follows figure 1 shown. ...

AI Technical Summary

Problems solved by technology

[0004] But, the problem that exists in this method of prior art is: the operating system of node 1 just requests remote memory to cloud controller only when attempting to allocate local physical memory and fails, and from the operating system of node 1 to cloud controller There is a large delay in the process of requesting remote memory until the remote memory allocation is successful, resulting in a long response time of the system, which affects the user experience

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