Dynamic bus arbitration priority and task switching based on sha

Details Dynamic bus arbitration priority and task switching based on sha Dynamic bus arbitration priority and task switching based on sha

1998-06-03

2000-12-05

Cabeca, John W.

Electrical computers and digital processing systems: memory

Storage accessing and control

Shared memory area

711158, 710 57, 710116, 709107, G06F 1200

Patent

active

061579890

ABSTRACT:
An arbitration and task switching technique in a real-time multiprocessor data processing system (20) having a common bus (32) and a segmented shared memory (30), where fullness of memory segments of the shared memory (30) is used as a measurement for arbitration and task switching priorities. A bus request mechanism in each of the processors dynamically calculates normalized priority values based on relative needs across the system (20). The normalized priority calculation is based on monitoring the fullness of memory segments of the shared memory (30) associated with each processor (24, 26, 28) of the system (20). Using this normalized priority calculation, the bus access order and bus bandwidth are optimally allocated according to tasks executed by the processors (24, 26, 28). Also, the normalized priority calculation and a preprogrammed threshold is used to control task switching in the multi-processor system (20).

REFERENCES:
patent: 5469558 (1995-11-01), Lieberman et al.
patent: 5524235 (1996-06-01), Larson et al.
patent: 5983303 (1999-11-01), Sheafor et al.

Affiliated with

Also associated with

Rating

Dynamic bus arbitration priority and task switching based on sha does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dynamic bus arbitration priority and task switching based on sha, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic bus arbitration priority and task switching based on sha will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-970747