05058006 is referenced by 78 patents and cites 6 patents.

An apparatus which filters the number of invalidates to be propagated onto a private processor bus is provided. This is desirable so that the processor bus is not overloaded with invalidate requests. The present invention describes a method of filtering the number of invalidates to be propagated to each processor. A memory interface filters the invalidates by using a second private bus, the invalidate bus, which communicates with the cache controller. The cache controller can tell the memory interface whether data corresponding to the address on the invalidate bus is resident in the private cache memory of that processor. In this way, the memory interface only has to request the private processor bus when necessary, in order to perform the invalidate.

Title
Method and apparatus for filtering invalidate requests
Application Number
7/212416
Publication Number
5058006
Application Date
June 27, 1988
Publication Date
October 15, 1991
Inventor
G Michael Uhler
Marlboro
MA, US
Rebecca L Stamm
Newton
MA, US
W Hugh Durdan
Waban
MA, US
Agent
Arnold White & Durkee
Assignee
Digital Equipment Corporation
MA, US
IPC
G06F 13/38
View Original Source