The working set model for program behavior
Communications of the ACM
Machine organization for multiprogramming
ACM '67 Proceedings of the 1967 22nd national conference
Dynamic program behavior under paging
ACM '66 Proceedings of the 1966 21st national conference
Experience using a time-shared multi-programming system with dynamic address relocation hardware
AFIPS '67 (Spring) Proceedings of the April 18-20, 1967, spring joint computer conference
A Modified Working Set Paging Algorithm
IEEE Transactions on Computers
AFIPS '70 (Fall) Proceedings of the November 17-19, 1970, fall joint computer conference
AFIPS '72 (Spring) Proceedings of the May 16-18, 1972, spring joint computer conference
User program performance in virtual storage systems
IBM Systems Journal
Virtual storage and virtual machine concepts
IBM Systems Journal
Some principles of time-sharing scheduler strategies
IBM Systems Journal
Characterization of program paging in a time-sharing environment
IBM Journal of Research and Development
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This paper is the result of a study conducted on the M44/44X system, an experimental time-shared paging system designed and implemented at IBM Research in Yorktown, New York. The system was in operation serving up to sixteen users simultaneously from early 1966 until May 1968. Conceived as a research project to implement the virtual machine concept, the system has provided a good deal of information relating to the feasibility of that concept. The aim of this study is to investigate the concept more thoroughly from a user's viewpoint and to try to answer some important questions related to program behavior in a paging environment. As an experimental system, the M44/44X provided an excellent vehicle for the purposes of this study, and the study itself forms some basis for an evaluation of the system.