Method for avoiding delays during snoop requests

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6928517
SERIAL NO

09651597

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A method of and apparatus for improving the efficiency of a data processing system employing a multiple level cache memory system. The efficiencies result from enhancing the response to SNOOP requests. To accomplish this, the system memory bus is provided separate and independent paths to the level two cache and tag memories. Therefore, SNOOP requests are permitted to directly access the tag memories without reference to the cache memory. Secondly, the SNOOP requests are given a higher priority than operations associated with local processor data requests. Though this may slow down the local processor, the remote processors have less wait time for SNOOP operations improving overall system performance.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
JOHNSON CHARLES AUNISYS CORPORATION M S 4773 PO BOX 54942 ST PAUL MN 55113

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Englin, Donald C Shoreview, MN 14 221
Mackenthun, Donald W Fridley, MN 10 242
Vartti, Kelvin S Hugo, MN 26 423

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation