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36 .Nd Trace system calls and userland stacks using DTrace
41 .Op Fl n Ar name Fl p Ar pid Ar command
45 utility traces system calls and (optionally) userland stack traces for the
48 The following options are available:
49 .Bl -tag -width indent
51 Trace the process with PID
54 Trace the process with name
57 Trace the specified syscall only.
63 Print relative times (in microseconds).
65 Print elapsed times (in microseconds).
67 Follow the children processes.
69 Force printing PID / TID.
71 Print time spent on CPU.
73 Print userland stack backtraces.
75 Don't print PID / TID.
77 Specify the DTrace buffer size.
86 utility comes from the DTraceToolkit and was first imported into