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diff --git a/cddl/contrib/dtracetoolkit/Cpu/runocc.d b/cddl/contrib/dtracetoolkit/Cpu/runocc.d
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+++ b/cddl/contrib/dtracetoolkit/Cpu/runocc.d
@@ -0,0 +1,56 @@
+#!/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.
+ *
+ * $Id: runocc.d 3 2007-08-01 10:50:08Z brendan $
+ *
+ * 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.
+ * 24-Apr-2006	   "      "	Last update.
+ */
+
+#pragma D option quiet
+
+profile-1000hz
+/curthread->t_cpu->cpu_disp->disp_nrunnable/
+{
+	@qocc[cpu] = count();
+}
+
+profile:::tick-1sec
+{
+	normalize(@qocc, 10);
+	printf("\n%8s %8s\n", "CPU", "%runocc");
+	printa("%8d %@8d\n", @qocc);
+	clear(@qocc);
+}