Data processing system and method for selective invalidation of

Details Data processing system and method for selective invalidation of Data processing system and method for selective invalidation of

1996-10-28

1998-09-15

Gossage, Glenn

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

711144, G06F 1208, G06F 1300

Patent

active

058095268

ABSTRACT:
A method and system of enhancing memory performance in a data processing system are provided. The data processing system may include a processor having an on-board first-level cache, a second-level cache coupled to the processor, a system bus coupled to the processor, and a main memory coupled to the system bus. When a memory request is received for a cache line at the first-level cache, a determination is made if the memory request is initiated by a store operation. If the memory request results in a hit in the first-level cache and a determination is made that the memory request is store-initiated, a corresponding cache line in a second-level cache is invalidated. If the memory request results in a miss in the first-level cache, the memory request is sent to the second-level cache, and, if the memory request results in a hit in the second-level cache and the memory request is determined to be store-initiated, the resulting cache line is forwarded to the first-level cache and the resulting cache line in the second-level cache is invalidated.

REFERENCES:
patent: 5369753 (1994-11-01), Tipley
patent: 5510934 (1996-04-01), Brennan et al.
patent: 5530832 (1996-06-01), So et al.
patent: 5564035 (1996-10-01), Lai
patent: 5577227 (1996-11-01), Finnell et al.
patent: 5584013 (1996-12-01), Cheong et al.

Affiliated with

Also associated with

Rating

Data processing system and method for selective invalidation of does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data processing system and method for selective invalidation of , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data processing system and method for selective invalidation of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-104683