Prefetch buffer and information processing system using the same

Details Prefetch buffer and information processing system using the same Prefetch buffer and information processing system using the same

1992-07-30

1994-09-06

Shaw, Dale M.

G06F 1202

Patent

active

053455606

ABSTRACT:
A prefetch buffer adapted to be installed between a cache memory and a main memory in a computer system having a CPU. The prefetch buffer includes a buffer storage having at least one entry for storing prefetched data and an address tag, which is to be used for searching the data, as a pair; a data searcher for searching, from the data stored in the buffer storage, for data having an address requested by the CPU; and an address estimator for determining an address of data to be prefetched next from the main memory, based on the address requested by the CPU and also on a history of the addresses of data prefetched in the past from the main memory; and an address generator for generating an address of data to be prefetched from the main memory. With this arrangement, it is possible to improve the hit ratio of the prefetch buffer regardless of the direction in which the access address varies.

REFERENCES:
patent: 4714994 (1987-12-01), Oklobdzija et al.
patent: 4943908 (1990-07-01), Emma et al.

Affiliated with

Also associated with

Rating

Prefetch buffer and information processing system using the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Prefetch buffer and information processing system using the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Prefetch buffer and information processing system using the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1335530