Patent
1990-05-02
1994-01-18
Richardson, Robert L.
G06F 1300
Patent
active
052805808
ABSTRACT:
A method and apparatus for handling system service requests such as disk change requests in a system containing a primary processor and at least one secondary processor, each of which has one or more processes running thereon. Requests originating from processes running on the primary processor are added directly to a primary queue and the corresponding processes suspended pending the completion of the requested system service, at which time the processes are resumed and the requests are purged from the primary queue. Each secondary processor manages a secondary queue of system service requests originating from processes running on that processor, which are suspended while the requests remain on the secondary queue. When a request is added to an empty secondary queue, a process on the secondary processor issues its own request to the primary processor, which is added to the primary queue, and suspends execution while awaiting a response from the primary processor. Upon completion of the requested system service, the primary processor resumes the suspended process on the secondary processor that issued the request to the primary processor, which in turn resumes the original requesting processes on the secondary processor and purges the secondary queue.
REFERENCES:
patent: 4387427 (1983-06-01), Cox et al.
Brooks William B.
Hoffstatter Mark A.
Manka Ronald S.
Miller Roger I.
International Business Machines - Corporation
Kinnaman William A.
Richardson Robert L.
LandOfFree
System service request processing in multiprocessor environment does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System service request processing in multiprocessor environment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System service request processing in multiprocessor environment will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1142249