Write performance by relocation during sequential reads

A method performed by data storage device having a controller coupled to a non-volatile memory device, the method comprising:

• receiving a read command from an external device;
• determining whether a read operation associated with the read command is a sequential read operation;
• and
• executing one or more relocation operations in response to determining that the read operation is the sequential read operation, wherein the one or more relocation operations are executed in an order based on a priority order associated with each of the one or more relocation operations, wherein the priority order is associated with a type of the each of the one or more relocation operations, and wherein the one or more relocation operations comprise one or more of a Quad Level Cell (“QLC”)-QLC compaction operation type, a Single Level Cell (“SLC”)-SLC compaction operation type, and an SLC-QLC folding operation type;
• wherein the QLC-QLC compaction operation type has a higher priority order than the SLC-SLC compaction operation type and the SLC-QLC folding operation type.

A data storage device, comprising:

• a non-volatile memory device including a memory block, the memory block including a plurality of memory dies and at least one flash management unit;
• and
• a controller coupled to the non-volatile memory device and configured to:
• receive a read command from an external device;
• determine whether a read operation associated with the read command is a sequential read operation based on a consecutive quantity of flash management units being accessed and exceeding a predetermined threshold;
• and
• in response to determining that the read operation is the sequential read operation, executing one or more relocation operations, wherein the one or more relocation operations are executed in an order based on a priority order associated with a type of each of the one or more relocation operations,
• wherein the priority order is based on a time period required to complete the each of the one or more relocation operation types,
• wherein the one or more relocation operations comprise one or more of a Quad Level Cell (“QLC”)-QLC compaction operation type, a Single Level Cell (“SLC”)-SLC compaction operation type, and an SLC-QLC folding operation type, and
• wherein the QLC-QLC compaction operation type has a higher priority order than the SLC-SLC compaction operation type and the SLC-QLC folding operation type.