US 2026/0010479 A1 · TECHNIQUES FOR CHANGELOG MANAGEMENT

Abstract

Methods, systems, and devices for techniques for changelog management are described. A memory system may implement a foreground changelog associated with storing new mappings received from a host system and a background changelog associated with storing old mappings received from the foreground changelog. The memory system may be configured to transfer old mappings from the background changelog to a mapping table stored at a volatile memory of the memory system, while new mappings are received at the foreground changelog. Then, the memory system may transfer the new mappings from the foreground changelog to the background changelog based on satisfying a capacity of the foreground changelog. The memory system may update the mapping table with the old mappings each time the background changelog is emptied, and may flush the mapping table to a mapping table stored at a non-volatile memory of the memory system other times the background changelog is emptied.

Claims25

Dependent claims

A memory system, comprising:

one or more memory devices;
and
processing circuitry coupled with the one or more memory devices and configured to cause the memory system to:
receive a plurality of first entries at a first changelog, each entry associated with a mapping between a logical address of a non-volatile memory and a physical address of the non-volatile memory;
transfer, concurrently with receiving one or more first entries of the plurality of first entries, a plurality of second entries from a second changelog to a mapping stored at a volatile memory in response to the plurality of first entries satisfying a threshold quantity of entries;
and
transfer the plurality of first entries from the first changelog to the second changelog in accordance with transferring the plurality of second entries.

4 more elements

Dependencies are inferred from the claim text.

Techniques for changelog management

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Techniques for changelog management

Life of this patent

Abstract

Claims25