Patent ID: 7383417
Filing Date: 2008-06-03
Classification: G06F

Abstract:
1. A prefetching method, for prefetching data from a file to a buffer before the data is read by a program product, comprising: recording a history for a plurality of data readings, said history including timings at which a plurality of command processes, for the program product, and a plurality of data reading processes, for reading data used for command processes, were performed, said command timings including a period extending from a completion of a current data reading to a start of a succeeding data reading and said data reading processes timing including a period between a time at which a request for data is issued until a time a response to said request is returned; measuring a total value for a volume of data for which reading by the program product has been requested and when said total value of the volume of data exceeds a reference data value, performing: generating a plurality of prefetchings that correspond to the plurality of data readings recorded in the history;