OSX DTrace scripts that didn't work as shipped (run queue related)

dispqlen.d

#!/usr/sbin/dtrace -s
/*
 * dispqlen.d - dispatcher queue length by CPU.
 *              Written using DTrace (Solaris 10 3/05).
 *
 * 14-Feb-2006, ver 0.90
 *
 * USAGE:	dispqlen.d		# hit Ctrl-C to end sample
 *
 * NOTES: The dispatcher queue length is an indication of CPU saturation.
 * It is not an indicatior of utilisation - the CPUs may or may not be
 * utilised when the dispatcher queue reports a length of zero.
 *
 * SEE ALSO:    uptime(1M)
 *
 * COPYRIGHT: Copyright (c) 2005 Brendan Gregg.
 *
 * CDDL HEADER START
 *
 *  The contents of this file are subject to the terms of the
 *  Common Development and Distribution License, Version 1.0 only
 *  (the "License").  You may not use this file except in compliance
 *  with the License.
 *
 *  You can obtain a copy of the license at Docs/cddl1.txt
 *  or http://www.opensolaris.org/os/licensing.
 *  See the License for the specific language governing permissions
 *  and limitations under the License.
 *
 * CDDL HEADER END
 *
 * 27-Jun-2005  Brendan Gregg   Created this.
 */

#pragma D option quiet

dtrace:::BEGIN
{
	printf("Sampling... Hit Ctrl-C to end.\n");
}

profile:::profile-1000hz
{
	@queue[cpu] =
	    lquantize(curthread->last_processor->processor_set->pset_runq.count, 0, 64, 1);
}

dtrace:::END
{
	printa(" CPU %d%@d\n", @queue);
}

runocc.d

#!/usr/sbin/dtrace -s
/*
 * runocc.d - run queue occupancy by CPU.
 *            Written using DTrace (Solaris 10 3/05).
 *
 * This prints the dispatcher run queue occupancy by CPU each second.
 * A consistant run queue occupancy is a sign of CPU saturation.
 *
 * The value is similar to that seen in "sar -q", however this is
 * calculated in a more accurate manner - sampling at 1000 Hertz.
 *
 * 24-Apr-2006, ver 0.70
 *
 * USAGE:	runocc.d
 *
 * FIELDS:
 *		CPU		cpu ID
 *		%runocc		% run queue occupancy, sampled at 1000 Hertz
 *
 * SEE ALSO: Solaris Internals 2nd Ed, vol 2, CPU chapter.
 *
 * COPYRIGHT: Copyright (c) 2006 Brendan Gregg.
 *
 * CDDL HEADER START
 *
 *  The contents of this file are subject to the terms of the
 *  Common Development and Distribution License, Version 1.0 only
 *  (the "License").  You may not use this file except in compliance
 *  with the License.
 *
 *  You can obtain a copy of the license at Docs/cddl1.txt
 *  or http://www.opensolaris.org/os/licensing.
 *  See the License for the specific language governing permissions
 *  and limitations under the License.
 *
 * CDDL HEADER END
 *
 * 02-Mar-2006  Brendan Gregg   Created this.
 */

#pragma D option quiet

profile-1000hz
/curthread->last_processor->processor_set->pset_runq.count/
{
  @qocc[cpu] = count();
}

profile:::tick-1sec
{
	normalize(@qocc, 10); /* turn 1000hz into a percentage (??!) */
	printf("\n%8s %8s\n", "CPU", "%runocc");
	printa("%8d %@8d\n", @qocc);
	clear(@qocc);
}