tcl_syscolors.d - trace Tcl program flow plus syscalls, in color. tcl_syscolors.d { -p PID | -c cmd } This traces activity from all Tcl processes on the system with DTrace provider support (tcl8.4.16). This watches Tcl method entries and returns, and indents child method calls. Any Evolving - uses the DTrace Tcl provider, which may change as additional features are introduced. Check Tcl/Readme to see what version these scripts are based on.

Default output, # tcl_syscolors.d

C CPU-id

PID Process ID

TID Thread ID

DELTA(us) Elapsed time from previous line to this line

TYPE Type of call (proc/cmd/syscall)

NAME Tcl proc/cmd or syscall name

Watch the first column carefully, it prints the CPU-id. If it changes, then it is very likely that the output has been shuffled.

See the DTraceToolkit for further documentation under the Examples, Notes and Docs directories. The example files may be especially useful as they aim to demonstrate how to interpret the output. tcl_syscolors.d will run until Ctrl-C is hit. Brendan Gregg [CA, USA] dtrace(1M)