LOOKAHEAD DEVICE, LOOKAHEAD METHOD AND LOOKAHEAD PROGRAM

摘要

PROBLEM TO BE SOLVED: To efficiently preread data in advance of data reading by a program.

SOLUTION: This lookahead device prereading data from a file to a buffer in advance of the reading of the data by the program has: a history recording part recording a history of the data reading issued during execution of the program; a lookahead generation part generating a plurality of pieces of the prereading corresponding to a plurality of pieces of the data reading recorded in the history; a lookahead procedure determination part determining execution order of the plurality of pieces of the prereading on the basis of the history; and a prefetch part executing each of the plurality of pieces of the prereading in the execution order according as the program is executed after the determination of the execution order.

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