Internal memory recovery method and device

Abstract

Provided are a memory recycling method and device. The memory recycling method comprises: receiving a memory recycling request message, with the memory recycling request message containing a recycling identifier, the recycling identifier being used for indicating the number of memory pages which requested to be recycled; according to the recycling identifier, recycling inactive pages of a non-volatile memory (NVM) in order of the number of times the inactive memory pages of the NVM have been written, from small to large. In the memory recycling method and device in the embodiments of the present invention, by recycling the inactive pages of the NVM in order of the number of times the inactive memory pages of the NVM have been written, from small to large, it is realized that a page of which the number of times the inactive memory pages of the NVM have been written is relatively small is recycled first, and a page of which the number of times the inactive memory pages of the NVM have been written is relatively big is recycled later, thereby enabling the wear of the memory pages of the NVM to be balanced, and improving the stability and reliability of a memory unit.

Description

technical field [0001] Embodiments of the present invention relate to the field of computer technology, and in particular, to a memory recovery method and device. Background technique [0002] The memory devices that make up the memory unit usually include dynamic random access memory (English full name Dynamic Random Access Memory, referred to as DRAM) and non-volatile memory (English full name Non-Volatile Memory, referred to as NVM). DRAM can withstand a high number of writes, but The degree of integration is low, and the storage space that can be integrated is limited. NVM has a higher degree of integration and can integrate memory units with larger memory capacity, but the number of writes that can be tolerated is relatively low. As people's requirements for memory capacity of storage devices Higher and higher, it is expected that the memory capacity of the storage device will become larger and more stable and reliable. Therefore, a memory unit with a hybrid structure c...

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Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a memory recycling method, aiming to solve the problem of uneven wear of NVM memory pages

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