#!/usr/sbin/dtrace -s /* * dispqlen.d - dispatcher queue length by CPU. * Written using DTrace (Solaris 10 3/05). * * $Id: dispqlen.d,v 1.1.1.1 2015/09/30 22:01:07 christos Exp $ * * 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. * 14-Feb-2006 " " Last update. */ #pragma D option quiet dtrace:::BEGIN { printf("Sampling... Hit Ctrl-C to end.\n"); } profile:::profile-1000hz { @queue[cpu] = lquantize(curthread->t_cpu->cpu_disp->disp_nrunnable, 0, 64, 1); } dtrace:::END { printa(" CPU %d%@d\n", @queue); }