Memory allocation method, device and equipment and computer readable storage medium

Abstract

The invention discloses a memory allocation method, device and equipment and a computer readable storage medium. The method comprises the following steps: acquiring memory remaining amount in each program; when the target program exists, distributing the current remaining memory of the system to the target program, wherein the target program is a program with the memory remaining amount smaller than the corresponding memory demand amount; judging whether the current memory surplus of the target program is smaller than the memory demand or not; and if yes, recycling the available memory from the remaining programs and distributing the available memory to the target program until the current memory remaining amount of the target program is equal to the memory demand amount. According to the technical scheme, memory allocation can be carried out under the condition that the actual use condition of the system memory is unknown, so that the memory remaining amount in each program can meet the corresponding memory demand, the reasonability of memory allocation is improved, and due to the fact that a kernel of an operating system does not need to be modified, the memory allocation applicability can be improved.

Description

technical field [0001] The present application relates to the technical field of memory compression, and more specifically, to a memory allocation method, device, device, and computer-readable storage medium. Background technique [0002] Existing memory compression methods are divided into software compression and hardware compression, wherein MXT (Memory Expansion Technology, memory expansion technology) of IBM is the most representative of hardware compression. [0003] At present, in the process of memory compression operation based on MXT, in order to enable the memory compression operating system to know the actual usage of system memory, it is necessary to modify the watermark of the memory management department in the operating system kernel, specifically changing the fixed watermark value to According to the variable watermark value of the compression ratio, the operating system can know the actual usage of the memory based on it, so as to facilitate reasonable and ...

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Problems solved by technology

[0003] At present, in the process of memory compression operation based on MXT, in order to enable the memory compression operating system to know the actual usage of system memory, it is necessary to modify the watermark of the memory management department in the operating system kernel, specifically changing the fixed watermark value to According to the variable watermark value of the compression ratio, the operating system can know the actual usage of the memory based on it, so as to facilitate reasonable and accurate memory allocation. However, because the memory compression operating system has restrictions on the modification authority of the user, therefore, Users cannot easily modify the kernel in the operating system, resulting in poor applicability of the above memory allocation methods

If the user cannot modify the kernel of the operating system, the operating system will not be able to know the actual usage of the system memory, which may lead to insufficient memory during memory allocation, thus reducing the rationality of memory allocation

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