gtps3m0gSystem Performance and Measurement Reference

General Description of Programs

An overview of all the programs involved in data collection and data reduction is presented in Figure 1. Data collection passes information to data reduction through the collection tape, RTC. The factors that affect a TPF system are various kinds of inputs. Selective data is collected by various collectors and placed on the tape. The tape is read by the data reduction driver and various reducers provide the reports that are the product of the performance package. Data collection takes place during operation of the online TPF system, while data reduction goes on offline (to TPF system) on an IBM MVS system.

Figure 1. Data Collection/Reduction Overview