The value appears as a field containing seconds . Specifically, for system calls, this is not the time spent within the system call. System calls to trace or exclude. Those system calls specified in the comma-separated list are traced. Default is -tall.
System calls that stop the process.
The specified system calls are added to the set specified by -t. That is, truss releases the process and exits but leaves the process in the stopped state at completion of the system call in question. Input values as well as values returned by the operating system are shown. For any field used as both input and output, only the output value is shown. This is for unredeemed hackers who must see the raw bits to be happy.