SYSTEM - System/OS services category
| Under Heading | This is Displayed |
|---|---|
| Name | “SYSTEM” |
| Description | “System/OS Services” |
| Percent of Time | The percentage of activity measured in system services. The classification as SYSTEM is done on the basis of load module names and DPA (Descriptive Program Attribution) tables. These include core operating system services as well as major system applications or subsystems: DB2®, IMS™, CICS®, MQSeries®, etc. SVC (Supervisor Call) routines and MVS™ Nucleus routines are included in this category. |