Simulation as a tuning tool in TSO
John Chapman · ACM SIGSIM Simulation Digest · 1974
The production TSO system at Standard Oil has been running since August 1973. Prior to this date, several limited test systems with small user groups were run, to collect information on modifications necessary to support interactive programming in a manner which would conform to current application development needs and practices. To support program development under O.S. Time Sharing Option, it was necessary to modify IBM supplied code, as well as add code, to the system. The experiments which led to the definition of the modifications needed included a six-month long test system to support a single, small group of application programmers. At the conclusion of this test, the programming group involved estimated an increase in productivity (groupwide) of twenty to thirty-five percent.