Increasing performance with memory compression

Details Increasing performance with memory compression Increasing performance with memory compression

2000-12-21

2003-09-09

Dildine, R. Stephen (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S702000, C341S061000, C341S095000

Reexamination Certificate

active

06618831

ABSTRACT:

FIELD
This invention relates to memory compression, more particularly, effectively increasing the bandwidth of a memory interface for increasing central processing unit performance by dropping repeated data elements in a data stream, the dropped data elements identified by tagging to cause an error correction code error for later recovery.
BACKGROUND
Typically, when data is transferred from a central processing unit (CPU) to a memory controller hub (MCH) and then to memory, a bandwidth disparity exists. That is, the bandwidth of the CPU to MCH connection, usually a front side bus (FSB), is higher than the bandwidth of a MCH to memory connection, a memory interface (MI). The FSB often operates at speeds of 500 mega-hertz (MHz.), while the MI often operates at lower speeds such as 100 MHz. or 133 MHz. Since the width of the data bus on both interfaces is usually the same, the effective bandwidth is much higher on the FSB. Everything else being equal, data passing from memory to the CPU would be limited by the MI, not by the FSB. That is, because advancements in CPU speed have outpaced advancements in memory speed, the slower MI speed effects CPU performance.


REFERENCES:
patent: 4903270 (1990-02-01), Johnson et al.
patent: 6362756 (2002-03-01), Shannon
patent: 6532012 (2003-03-01), Deering

Affiliated with

Also associated with

Rating

Increasing performance with memory compression does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Increasing performance with memory compression, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Increasing performance with memory compression will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3049140