#!/usr/sbin/dtrace -s
 /*
  * loads.d - print load averages. Written using DTrace (Solaris 10 3/05).
  *
  * These are the same load averages that the "uptime" command prints.
  * The purpose of this script is to demonstrate fetching these values
  * from the DTrace language.
  *
  * $Id: loads.d 3 2007-08-01 10:50:08Z brendan $
  *
  * USAGE:	loads.d
  *
  * SEE ALSO:	uptime(1)
  *
  * The first field is the 1 minute average, the second is the 5 minute,
  * and the third is the 15 minute average. The value represents the average
  * number of runnable threads in the system, a value higher than your
  * CPU (core/hwthread) count may be a sign of CPU saturation.
  *
  * 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
  *
  * 10-Jun-2005	Brendan Gregg	Created this.
  * 10-Jun-2005	   "      "	Last update.
  */
 
 #pragma D option quiet
 
 dtrace:::BEGIN
 {
 	/* fetch load averages */
 	this->load1a  = `hp_avenrun[0] / 65536;
 	this->load5a  = `hp_avenrun[1] / 65536;
 	this->load15a = `hp_avenrun[2] / 65536;
 	this->load1b  = ((`hp_avenrun[0] % 65536) * 100) / 65536;
 	this->load5b  = ((`hp_avenrun[1] % 65536) * 100) / 65536;
 	this->load15b = ((`hp_avenrun[2] % 65536) * 100) / 65536;
 
 	/* print load average */
 	printf("%Y,  load average: %d.%02d, %d.%02d, %d.%02d\n",
 	    walltimestamp, this->load1a, this->load1b, this->load5a,
 	    this->load5b, this->load15a, this->load15b);
 
 	exit(0);
 }