rb_cputime.d - measure Ruby on-CPU times for types of operation. rb_cputime.d This traces Ruby activity from all programs running on the system with Ruby provider support. Filename and method names are printed if available. Any Evolving - uses the DTrace Ruby provider, which may change as additional features are introduced. Check Ruby/Readme to see what version these scripts are based on.

Default output, # rb_cputime.d

FILE Filename of the Ruby program

TYPE Type of call (method/obj-new/gc/total)

NAME Name of call

TOTAL Total on-CPU time for calls (us)

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. rb_cputime.d will run until Ctrl-C is hit. Brendan Gregg [CA, USA] dtrace(1M)