A memory management method and device

Abstract

The invention discloses a memory management method and device, which can reclaim the memory at an appropriate time and improve the efficiency of memory management. The method includes: acquiring the swap memory to be swapped to a defined area in the memory, the size Mswap of the swap memory is characterized by a swap constraint factor fswap and is proportional to fswap; according to the free memory threshold or the free memory threshold and the process importance evaluation relationship, calculate the swap restriction factor f'swap when the free memory threshold is Mf; when the free memory of the system is less than Mf, compress the swap memory represented by the swap restriction factor f'swap, and swap the data in the compressed swap memory to the designated fixed area. On the one hand, the method provided by the present invention is more rational, so that the process will not be killed by mistake; on the other hand, when the free memory of the system is less than Mf, the swap memory represented by the calculated swap constraint factor f'swap compressed can be stored in the memory When it is insufficient, it can not only expand the memory space, but also effectively protect the process.

Description

technical field [0001] The invention belongs to the field of computers, and in particular relates to a memory management method and device. Background technique [0002] Memory management refers to the technology of allocating and using computer memory resources when the software is running. Its main purpose is how to efficiently and quickly allocate and release and reclaim memory resources at an appropriate time. Some processes, so that part of the memory resources can be reclaimed. With the advent of the era of 3G and smart phones, there are more and more applications on smart terminals such as smart phones. Smart terminals such as smart phones adopt multi-tasking operating systems and can run multiple tasks at the same time. In order to improve the multitasking user experience, smart terminals such as smartphones are equipped with large-capacity memory. However, the increase of memory capacity is limited by cost, power consumption, volume, etc., and memory resources are...

AI Technical Summary

Problems solved by technology

[0004] The main defect of the above-mentioned existing memory management method is that it is too simple and rude. The reason is that if the system adopts this method, many applications will be killed because the memory is too low when the user uses a smart terminal such as a smart phone. It is even killed by mistake, which greatly affects the user experience

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