Multiple cache directories for non-arbitration concurrent access

Details Multiple cache directories for non-arbitration concurrent access Multiple cache directories for non-arbitration concurrent access

1997-04-14

1999-08-24

Chan, Eddie P.

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

711122, 711168, G06F 1200

Patent

active

059436867

ABSTRACT:
A method of accessing a cache used by a processor of a computer system, to eliminate arbitration logic which would otherwise be required to handle operations from multiple snooping devices. A plurality of cache directories are provided in the cache, respectively connected directly to a plurality of snooping devices using a plurality of interconnects. An operation from a given snooping device is then handled by using a respective cache directory to issue a response to a respective interconnect. For example, a first cache directory may be connected to a first interconnect on a processor side of the cache, and a second cache directory may be connected to a second interconnect on a system bus side of the cache. This construction allows handling of operations from multiple snooping devices without having to use critical path arbitration logic. Furthermore, this construction allows for improved cache access due to the physical placement of the multiple cache directories.

REFERENCES:
patent: 4807110 (1989-02-01), Pomerene et al.
patent: 5058116 (1991-10-01), Chao et al.
patent: 5099485 (1992-03-01), Bruckert et al.
patent: 5249187 (1993-09-01), Bruckert et al.
patent: 5319766 (1994-06-01), Thaller et al.
patent: 5325520 (1994-06-01), Nguyen et al.
patent: 5418922 (1995-05-01), Liu
patent: 5502728 (1996-03-01), Smith, III
patent: 5559987 (1996-09-01), Foley et al.
patent: 5717949 (1998-02-01), Ito

Affiliated with

Also associated with

Rating

Multiple cache directories for non-arbitration concurrent access does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multiple cache directories for non-arbitration concurrent access, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple cache directories for non-arbitration concurrent access will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-477131