APPCCONTROL PERFORMANCEON

Description

The APPCCONTROL PERFORMANCEON command enables the gathering of APPC subsystem performance statistics.

	NOTE: The APPCCONTROL PERFORMANCEON command does not display performance statistics; it only enables the gathering of performance statistics. To display performance statistics, issue the APPCCONTROL PERFORMANCE command.

When the APPC subsystem starts up, statistics gathering is disabled by default. Once the APPC subsystem is active, you can enable statistics gathering by issuing the APPCCONTROL PERFORMANCEON command. Executing the APPCCONTROL PERFORMANCEON command will not interrupt the sessions for which statistics are being gathered.

To enable statistics gathering at subsystem startup, you specify PERFON = YES in the APPCCONTROL START command, described later in this chapter. If you start the APPC subsystem programmatically, you can enable statistics gathering by setting the PerformanceOn parameter of the APPCStart intrinsic to 1. See Chapter 3 “Control Operator Intrinsics” for more information on control operator intrinsics.

	NOTE: Statistics gathering must be enabled before you issue the APPCCONTROL PERFORMANCE command. If you issue the APPCCONTROL PERFORMANCE command with statistics gathering disabled, no statistics will be available for display, and you will receive an error message. See the description of APPCCONTROL PERFORMANCE, earlier in this chapter.