SCF Reference Manual for J-Series and H-Series RVUs

SCF Commands
SCF Reference Manual for J-Series and H-Series RVUs—529649-003
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TRACE Command
WRAP
specifies that when the trace file end-of-file mark is reached, trace data wraps
around to the beginning of the file and overwrites any data there. If WRAP is not
specified, the trace is stopped when the end-of-file mark is reached. You cannot
change the specification of the WRAP option during an ongoing trace.
Some subsystems may automatically select this option. For more information
about TRACE command options, refer to the SCF reference manual for a specific
subsystem .
Considerations
•
If TO file-spec is specified, a new trace is initiated unless file-spec is
invalid, the file cannot be opened, or a trace is already active for that process’s PID
(CPU, PIN).
•
If TO file-spec is omitted and STOP is specified, the TRACE command stops
the trace currently in progress.
•
If TO file-spec and STOP are both omitted, the TRACE command modifies the
trace currently in progress.
•
The parameters COUNT, RECSIZE, and SELECT can be changed during an
ongoing trace. Other trace parameters cannot be modified during an ongoing
trace.
Examples
•
This command initiates a trace of the TLAM manager process ($ZLMG). Trace
records are written to the file $DATA.TRACE.LANMGR13.
-> TRACE PROCESS $ZLMG, TO $DATA.TRACE.LANMGR13, SELECT ALL
•
This command stops the trace of the TLAM manager process:
-> TRACE PROCESS $ZLMG, STOP