Optimization for unmap backlog operations in memory system

A memory system, comprising:

• a first memory device configured to store data and one or more physical pointer tables associated with the data;
• a second memory device configured to store one or more change logs configured to indicate changes to the data based at least in part on an unmap process;
• and
• circuitry coupled with the first memory device and the second memory device, and configured to cause the memory system to:
• obtain, from the first memory device, a first physical pointer configured to map a plurality of logical addresses to a plurality of physical addresses;
• obtain, from the second memory device, the one or more change logs configured to indicate the changes to the data based at least in part on the unmap process;
• apply the one or more change logs to the first physical pointer;
• and
• output, to the first memory device based at least in part on application of the one or more change logs to the first physical pointer, a page validity change log configured to indicate one or more pages of the data that have changed based at least in part on an unmap operation.

A memory system, comprising:

• a first memory device configured to store data and one or more physical pointer tables associated with the data;
• a second memory device configured to store one or more change logs configured to indicate changes to the data based at least in part on access operations;
• and
• circuitry coupled with the first memory device and the second memory device, and configured to cause the memory system to:
• obtain, from the first memory device, a page validity table configured to indicate whether one or more pages of a plurality of pages of data stored in the first memory device are valid;
• receive, from the second memory device and at a buffer of the circuitry, a plurality of change logs configured to indicate changes to the page validity table based at least in part on an unmap process performed by the memory system;
• apply the plurality of change logs to the page validity table;
• and
• output the updated page validity table based at least in part on application of the plurality of change logs.