METHOD FOR IMPROVING EFFICIENCY OF STORING LOGIC MAPPING TABLE

摘要

A method for improving the efficiency of storing a logic mapping table, comprising a logic mapping table, a logic mapping update table, and a flash memory. The logic mapping table comprises a plurality of groups, the plurality of groups comprising a group 1, a group 2, a group 3, a group 4 and a group n, and n being an integer greater than 4. According to the method, a logic mapping update table is used for recording which logic mapping table needs to be updated; the logic mapping update table needs to be defined according to the size of the logic mapping table; the logic mapping update table specially records the logic mapping table written by Host; a value in the logic mapping update table after writing is set to be 1, that is, when the logic mapping update table needs to be updated later, the logic mapping update table is searched, and only the logic mapping table with the set value of 1 needs to be written into a flash memory; after x cycles, only the logic mapping table needing to be updated is stored. According to the method, unnecessary logic mapping table writing can be greatly reduced, so that the efficiency of storing a logic mapping table is improved.