The working set model for program behavior
Communications of the ACM
Interactive task behavior in a time-sharing environment
ACM '72 Proceedings of the ACM annual conference - Volume 2
Dynamic program behavior under paging
ACM '66 Proceedings of the 1966 21st national conference
A SIMULATOR OF MULTIPLE INTERACTIVE USERS TO DRIVE A TIME-SHARED COMPUTER SYSTEM
A SIMULATOR OF MULTIPLE INTERACTIVE USERS TO DRIVE A TIME-SHARED COMPUTER SYSTEM
The VMOS paging algorithm: a practical implementation of the working set model
ACM SIGOPS Operating Systems Review
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EINSTEIN is an internal driver developed to evaluate the performance of a mixed-mode time sharing, batch operating system. It allows a single experimenter at a terminal to place an arbitrary, reproducible, interactive load on the system. Such a facility has numerous uses: system debugging and testing, benchmarking successive releases of a system, estimating system saturation points for different configurations, evaluating alternate processor and memory scheduling algorithms, etc. A task is defined either by specifying the values for a parameterized model of task behavior or by specifying the actual terminal input for the task, called the script. The parameterized model and the script-driven tasks are discussed in detail. An actual experience in which both types of EINSTEIN tasks were used to help isolate a reported performance degradation is related.