Technical data

START
/VERSION_LIMIT=n
Specifies the number of versions of the trace file to keep. When this many
versions have been created, each new version of the trace file causes the oldest
current version to be deleted. The default is 10.
Live Tracing
/BRIEF
Specifies that a single-line analysis of the protocol data in each trace record is
displayed. The default is /BRIEF. This qualifier is effective only if the relevant
protocol analysis routines support abbreviated analysis of protocol data.
/DISPLAY=(field,...)
/NODISPLAY
Specifies which fields (apart from the protocol data itself) in a trace record are
displayed. The fields that can be displayed are:
[NO]ALL All the fields shown below are displayed.
[NO]CONTEXT Tracepoint-specific information
[NO]EVENT The event code
[NO]FUNCTION_CODE The tracepoint-specific function code of the
operation being traced.
[NO]NAME The name of the tracepoint from which the trace
record was collected. Names longer than 16
characters will be truncated on the right.
[NO]SIZE The original size of the trace data, in bytes
[NO]STATUS If the value in this field is non-zero, it is the
current status of the operation being traced.
[NO]TIME The time at which the trace record was collected.
The default display is:
TIME
EVENT
SIZE
/FULL
Specifies that a multi-line analysis of the protocol data in each trace record is
produced. If you do not specify /FULL, the default is /BRIEF. This qualifier is
effective only if the relevant protocol analysis routines support full analysis of
protocol data.
/NAME=instance-name
Specifies the instance part of a tracepoint name. A trace record is displayed
only if it came from the specified tracepoint. If you specify only the first part of
an instance name, trace records are displayed from all tracepoints whose name
begins with this string. The default is to display trace records from all active
tracepoints.
/PAGE=lines-per-page
Specifies the number of lines per page when writing output to a file. This
qualifier has no effect if trace records are being displayed on your terminal. The
default is defined by the logical name SYS$LP_LINES, which usually has the
value 66.
4–20 CTF Commands