gtps4m1s | System Generation |
The purpose of this package (DC/DR) is to observe by judicious sampling, the operation of the TPF system environment and report on its performance parameters and their statistical characteristics. The package is comprised of an online subpackage referred to as data collection (DC) and an offline (MVS) subpackage called data reduction (DR).
DC is the online data collection subpackage. It collects and records real-time TPF system performance information. It observes system performance by collecting predetermined indicators, at fixed time intervals, through interaction with the control program at the bidding of its own driver which is operator-initiated.
DR is the offline data reduction subpackage which runs under MVS. It reads, edits, and arranges the recorded performance information. The data is mathematically analyzed to formulate it in operationally meaningful terms and the results are described in standard statistical measures via printed reports.
The SIP macro DATACO is used to specify values used by both the data collection and reduction packages. This macro is optional (all default values may be accepted) and must only be coded once in the SIP Stage I input for the BSS. These values will become part of the data reduction pre-compiler segment (JPC0) that is used in compiling the other data reduction segments.
Additional information about DC/DR may be found in the TPF System Performance and Measurement Reference.