Resources Contact Us Home
Data processing system and method for substituting one type of request for another for increased performance when processing back-to-back requests of certain types

Image Number 10 for United States Patent #6263409.

A data processing system and method for substituting selected requests with substitute requests that perform the same or similar end function but achieve increased system performance are disclosed. Those requests that have a selected request characteristic are identified and converted or replaced with a predetermined substitute request. The substitute requests perform at least part of the function of the identified requests. The data processing system may include two or more processors, and the selected request characteristic may be that a write data packet of an identified write request was not changed by a first processor. A substitute request may update directory information associated with the identified write request but may not write to associated data packet to memory. The directory information can indicate whether identified memory locations are currently owned by a processor. The substitute request may also send the associated write data packet from the first processor to a second processor via a processor-to-processor interface. It may be determined whether a processor block has changed selected data by examining a function code of a write type request.

  Recently Added Patents
Motion compensated overlay
Vehicle, toy, and/or replicas thereof
Case for camera
Horizontal cable manager
Device and method incorporating an improved text input mechanism
Image forming apparatus and image forming method
Digital X-ray detector arrangement and digital X-ray imaging method
  Randomly Featured Patents
Error detection/correction circuit, memory controller and semiconductor memory apparatus
Haze reduction for blends of aromatic-aliphatic polyesters with aliphatic polyesters and antimicrobial additives
Charge cancellation technique for integrated circuit resistors
Method and apparatus for mounting a blanket for a rotary press
Magenta couplers
Stud worm fishing lures
Portable roof and tower system and method for construction
Polyurethane prepolymer comprising the reaction product of at least two active hydrogen containing substances with polyisocyanate
Portable communications device
Copying apparatus