Patent ID: 11893269
Assignee: SK HYNIX INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 13:
14. A data input and output system, comprising:
plural storage devices having a different data input and output speed;
a cache memory; and
a control device configured to:
store readahead data obtained from the plural storage devices via a readahead operation in the cache memory,
output read data, among the readahead data stored in the cache memory, to an application program based on reception of a read request input from the application program,
determine a readahead attribute regarding the readahead data, obtained by the readahead operation, based on a first timing of the reception and a second timing of completion of storing the readahead data in the cache memory, and
store the readahead data in one of the plural storage devices based on the readahead attribute.