Effects of prefetching on I/O requests in an information...

Details Effects of prefetching on I/O requests in an information... Effects of prefetching on I/O requests in an information...

2006-04-25

2006-04-25

Moazzami, Nasser (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

C712S207000

Reexamination Certificate

active

07035980

ABSTRACT:
A data look-ahead control is provided to realize a high cache hit rate and improves responsiveness in an information processing system. In the data look-ahead control, when it is determined that the current input/output request is an access to a specific database that was the subject of a recent input/output request and whose I/O count exceeds a predetermined value, and it is also determined that a cache memory can be occupied to some extent and that there would be no impact on other input/output requests, data including one or more blocks (logical tracks) larger than a block that is the subject of the current I/O request are loaded to the cache memory.

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