Methods of operating host device and storage device, and electronic device

1. A method of operating a host device, comprising:

monitoring execution of a command sequence corresponding to a specific situation;

determining whether working file set information for the command sequence is present in a database;

transferring a logical address corresponding to the working file set information to a device driver driving a storage device when the working file set information is present in the database;

requesting map information corresponding to the logical address from the storage device;

receiving the map information from the storage device; and

storing the map information in a buffer memory, wherein:

the map information stored in the buffer memory is used when a read request corresponding to the working file set information is requested, and

the read request includes a read command, a logical address, and a physical address.

2. The method as claimed in claim 1 , wherein the monitoring of the execution of the command sequence includes:

collecting process performance information and file open information.

3. The method as claimed in claim 1 , wherein the working file set information includes:

process information, directory information, file extension information, or an accessed logical block address.

4. The method as claimed in claim 1 , further comprising configuring new working file set information when the working file set information is not present in the database.

5. The method as claimed in claim 4 , further comprising storing the new working file set information in an accessible form in the database.

6. The method as claimed in claim 1 , wherein the determining of whether the working file set information for the command sequence is present in the database includes:

extracting the logical address corresponding to the working file set information by machine learning of the working file set information.

7. The method as claimed in claim 1 , wherein:

the map information includes Logical-to-Physical (L2P) map information, and

the storage device is a Universal Flash Storage (UFS) device.

8. The method as claimed in claim 1 , wherein the working file set information is configured based on file and logical address information accessed in a specific context by defining the specific context by collecting command execution information and file access information of a process in real time.

9. The method as claimed in claim 8 , further comprising modifying the working file set information of a corresponding context when a prediction of the map information is incorrect.

10. The method as claimed in claim 1 , wherein the specific situation includes an opening or accessing of a specific file by a specific process.

11. A method of operating a storage device, comprising:

setting a host performance booster (HPB) mode;

receiving, from a host device, hint information including a request for Logical-to-Physical (L2P) map information related to a working file set information corresponding to a command sequence executed in the host device in the HPB mode;

selecting the L2P map information based on the hint information;

transmitting the selected L2P map information to the host device; and

receiving a read request from the host device, the read request including a read command, a logical address, and a physical address corresponding to the selected L2P map information.

12. The method as claimed in claim 11 , further comprising setting the storage device to a host control mode.

13. The method as claimed in claim 11 , further comprising loading map information from a non-volatile memory device.

14. The method as claimed in claim 11 , further comprising performing a read operation on a non-volatile memory device of the storage device by using the physical address included in the read request.

15. The method as claimed in claim 11 , wherein the storage device is a Universal Flash Storage (UFS) device.

16. An electronic device, comprising:

an application processor configured to monitor a process and a file access to identify a specific context, predict a read operation in a specific range corresponding to the specific context, and output hint information corresponding to the read operation;

a storage device caching Logical-to-Physical (L2P) map information to the application processor, based on the hint information; and

a buffer memory configured to store the L2P map information by the application processor,

wherein the application processor transmits a read request to the storage device, using the L2P map information stored in the buffer memory.

17. The electronic device as claimed in claim 16 , wherein the storage device performs a Host Performance Booster (HPB) function in a host control mode.

18. The electronic device as claimed in claim 16 , further comprising a database storing the specific context.

19. The electronic device as claimed in claim 18 , wherein, when the specific context is not present in the database, the application processor builds the specific context in the database.

20. The electronic device as claimed in claim 16 , wherein, when the L2P map information is incorrect, the application processor modifies a working file set information in a corresponding context.