Compression based wear leveling for non-volatile memory
The present disclosure includes systems and techniques relating to non-volatile memory. Systems and techniques can include obtaining information to store in a non-volatile memory, the information including a data segment, compressing data within the data segment, including pad data in one or more portions of the data segment based on a compression result attained by the compression, and writing data of the data segment.
1. A method, comprising:
obtaining information to store in a non-volatile memory, the information comprising a data segment;
compressing data within the data segment;
including pad data in one or more portions of the data segment based on a compression result attained by the compression;
writing data of the data segment; and
cycling through different pad data insertion locations within the data segment to facilitate a distribution of physical write operations to the non-volatile memory.
2. The method of claim 1 , wherein including pad data in one or more portions of the data segment comprises inserting the pad data in the data segment at an insertion location determined from a programming counter associated with a data sector of the non-volatile memory.
3. The method of claim 1 , wherein including pad data in one or more portions of the data segment comprises inserting at least a portion of the pad data between different portions of the compressed data.
4. The method of claim 1 , wherein including pad data in one or more portions of the data segment comprises inserting different portions of the pad data at different locations within the data segment.
5. The method of claim 1 , further comprising:
generating error detection information based on the compressed data; and
writing the error detection information to the non-volatile memory.
6. The method of claim 1 , further comprising:
generating error detection information based on the compressed data and the pad data; and
writing the error detection information to the non-volatile memory.
7. The method of claim 1 , wherein obtaining information to store in the non-volatile memory comprises segmenting the information into multiple data segments.
8. The method of claim 1 , wherein the pad data comprises one or more bits set to a logical state associated with an erased bit state of the non-volatile memory, wherein writing data comprises writing data of the data segment that are indicative of a non-erased bit state to the non-volatile memory.
9. An apparatus, comprising:
a non-volatile memory structure configured to store data; and
a controller, in communication with the non-volatile memory structure, configured to perform operations comprising:
obtaining information to store in the non-volatile memory structure, the information comprising a data segment;
compressing data within the data segment;
including pad data in one or more portions of the data segment based on a compression result attained by the compression;
writing data of the data segment to the non-volatile memory structure; and
cycling through different pad data insertion locations within the data segment to facilitate a distribution of physical write operations to the non-volatile memory structure.
10. The apparatus of claim 9 , wherein including pad data in one or more portions of the data segment comprises inserting the pad data in the data segment at an insertion location determined from a programming counter associated with a data sector of the non-volatile memory structure.
11. The apparatus of claim 9 , wherein including pad data in one or more portions of the data segment comprises inserting at least a portion of the pad data between different portions of the compressed data.
12. The apparatus of claim 9 , wherein including pad data in one or more portions of the data segment comprises inserting different portions of the pad data at different locations within the data segment.
13. The apparatus of claim 9 , wherein the non-volatile memory structure comprises flash memory, wherein the logical state corresponds to logical one.
14. A system comprising:
a non-volatile memory structure configured to store data;
a controller, in communication with the non-volatile memory structure, configured to perform operations comprising:
obtaining information to store in the non-volatile memory structure, the information comprising a data segment;
compressing data within the data segment;
including pad data in one or more portions of the data segment based on a compression result attained by the compression;
writing data of the data segment to the non-volatile memory structure; and
cycling through different pad data insertion locations within a data segment to facilitate a distribution of physical write operations to the non-volatile memory structure; and
a processor, in communication with the controller, the processor configured to communicate with the non-volatile memory structure via the controller.
15. The system of claim 14 , wherein including pad data in one or more portions of the data segment comprises inserting the pad data in the data segment at an insertion location determined from a programming counter associated with a data sector of the non-volatile memory structure.
16. The system of claim 14 , wherein including pad data in one or more portions of the data segment comprises inserting at least a portion of the pad data between different portions of the compressed data.
17. The system of claim 14 , wherein including pad data in one or more portions of the data segment comprises inserting different portions of the pad data at different locations within the data segment.