pridist.d(1m) USER COMMANDS pridist.d(1m)
pridist.d - process priority distribution. Uses DTrace.
This is a simple DTrace script that samples at 1000 Hz which process is
on the CPUs, and what the priority is. A distribution plot is printed.
With priorities, the higher the priority the better chance the process
(actually, thread) has of being scheduled.
This idea came from the script /usr/demo/dtrace/profpri.d, which produces
similar output for one particular PID.
Since this uses DTrace, only users with root privileges can run this
This samples until Ctrl-C is hit.
CMD process name
PID process ID
value process priority
count number of samples of at least this priority
DTrace Guide "profile Provider" chapter (docs.sun.com)
See the DTraceToolkit for further documentation under the Docs directory.
The DTraceToolkit docs may include full worked examples with verbose
descriptions explaining the output.
pridist.d will sample until Ctrl-C is hit.
version 0.90 June 13, 2005 pridist.d(1m)