INTERARRIVAL STATISTICS FOR TSS.
Abstract
The optimization of time-shared system performance requires the description of the stochastic processes governing the user inputs and the program activity. This paper provides a statistical description of the user input process in the SDC-ARPA general-purpose Time-Sharing System (TSS). The input process is assumed to be stationary, and to be defined by the interarrival time distribution. The data obtained appear to justify satisfactorily the common assumption that the interarrival times are serially independent. The data do not appear to justify, except as a very rough approximation, the usual assumption of an exponential distribution for interarrival time. A much more satisfactory approximation to the data can be obtained with a biphase or triphase hyperexponential distribution. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 03, 1965
- Accession Number
- AD0622001
Entities
People
- E. G. Coffman Jr.
- R. C. Wood
Organizations
- System Development Corporation