Technical data

START
START
The START command starts tracing on one or more specified tracepoints.
Format
START [node-name["user-name password"]::] "tracepoint-name",... [/qualifiers]
Parameters
node-name
Specifies the node name of a remote server. You must specify a node name when
starting a remote tracepoint.
user-name
Specifies the user name associated with the remote CTF object. You must specify
this user name if the remote CTF object is protected.
password
Specifies the password associated with the remote CTF object. You must specify
this password if the remote CTF object is protected.
tracepoint-name
Specifies the name of a tracepoint that you want to trace. If you are specifying
more than one tracepoint, separate each tracepoint name with a comma.
Qualifiers
The qualifiers for this command are presented in three groups:
1. Qualifiers that are relevant only for detached tracing (that is, tracing that is
started by a START/NOLIVE command).
2. Qualifiers that are relevant only for live tracing (that is, tracing that is
started by a START/LIVE command).
3. Qualifiers that are relevant for both detached and live tracing.
Detached Tracing
/BLOCKS=n
Specifies the size, in blocks, of the trace file to which trace records from the
specified tracepoints are written. If a trace file reaches its maximum size, a
new version of the trace file is created. The default file size is 200 blocks. The
minimum file size is 20 blocks.
/OUTPUT=filename
Specifies the name of the trace file to which trace records are written. The default
trace file is the file CTF$TRACE.DAT in your default directory.
/PRIORITY=priority
Specifies the base priority for the trace server process that writes trace records to
the trace file. The default is 9. The lowest is 0 and the highest is 15.
/PROCESS_NAME=process-name
Specifies the name to be given to the trace server process that is created to write
trace records to the trace file. The default process name is username$CTF.
CTF Commands 4–19