Exit routines for component tracing

Exit Routine/Model	Purpose or Related Activity
Start/stop exit routine	Start or stop tracing for the application, or change trace options. Connect a trace to and disconnect a trace from an external writer.
Display trace exit routine	Provides information about the component trace for the DISPLAY TRACE operator command.
CTRACE buffer find exit routine	Locate trace buffers in a dump for formatting through IPCS.
CTRACE filter/analysis (CTRF) exit routine	Filter trace entries for formatting, or provide data for analysis.
Format models	Provide application-specific format instructions for trace entries.

Note: See z/OS MVS IPCS Customization for exits/models related to formatting.