Memory controller, memory management method and memory device

Abstract

The invention provides a memory management method, a memory management method and a storage device. The memory management method comprises the following steps: grouping a plurality of entity pages of each entity block in a plurality of entity blocks into a plurality of entity sections; updating a first target section valid data count corresponding to a first target entity section in a plurality of target section valid data counts of a plurality of target entity sections corresponding to the write instruction according to the executed write instruction; updating a target block valid data count corresponding to a target entity block in a plurality of block valid data counts of the plurality of entity blocks according to the updated first target block valid data count; and updating a target effective section count corresponding to the target entity block in a plurality of effective section counts of the plurality of entity blocks according to the plurality of target section effective data counts of the target entity block.

Description

Technical field [0001] The present invention relates to a memory management method, and more particularly to a storage device configured with a recredible non-volatile memory module, a storage controller of the storage device, and a memory management method used. Background technique [0002] In general, when the free space of the memory device is insufficient, the controller of the storage device can be stored in a plurality of entity blocks (also known as, " Recycling entity blocks) Perform garbage collection operations to release the available space of the plurality of recovered solid blocks. [0003] The garbage collection operation requires a lot of time to identify the active address of the valid data stored in the plurality of recovered entity blocks, and reduces the performance of the copyable non-volatile memory module to perform garbage recovery operation. [0004] Base here, how can we efficiently increase the speed of garbage recovery operation, to enhance the perform...

AI Technical Summary

Problems solved by technology

[0003] The garbage collection operation needs to spend a lot of time to identify the physical address of the valid data stored in the plurality of reclaimed physical blocks, so that the performance of the rewritable non-volatile memory module when performing the garbage collection operation is reduced.

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