This Article 
   
 Share 
   
 Bibliographic References 
   
 Add to: 
 
Digg
Furl
Spurl
Blink
Simpy
Google
Del.icio.us
Y!MyWeb
 
 Search 
   
Aspects of a Dynamically Adaptive Operating System
July 1976 (vol. 25 no. 7)
pp. 713-725
P.R. Blevins, IBM Office Products Division
-Real-time optimization of the overall performance of a large computer system or network such as an air-traffic control system or teleprocessing network inherently requires the introduction of adaptive control into selected control functions or sets of control functions. Such adaptive control is necessitated by the high variance of the available resource inventory and the workload resource demands within the system environment. Global management of the resulting multiloop control system becomes the responsibility of the operating system. Investigated aspects of this evolutionary extension of the operating system called the dynamically adaptive operating system (DAOS) include the general methodology and the real-time modeling and estimation of resource demands. The methodology specifies the general identification, decision, and modification processes required for an adaptive operating system. Support of such processes could be attractively provided by a peripheral or miniprocessor. The problem of estimating resource service times both with and without partial service times is explored and statistical models possessing utility for real-time modeling are developed. In particular, a dynamically partitioned second moment model (DPSMM) is described. The feasibility of such models is established with respect to a General Principle of Locality. Selected simulation results are presented to evaluate selected developments with respect to an adaptive central processing unit (CPU) scheduling discipline.
Index Terms:
Adaptive control, adaptive operating systems, dynamically partitioned second moment model (DPSMM), General Principle of Locality, predictive scheduling, statistical models, workload locality pattern (WLP).
Citation:
P.R. Blevins, C.V. Ramamoorthy, "Aspects of a Dynamically Adaptive Operating System," IEEE Transactions on Computers, vol. 25, no. 7, pp. 713-725, July 1976, doi:10.1109/TC.1976.1674680
Usage of this product signifies your acceptance of the Terms of Use.