1235368Sgnn#!/usr/sbin/dtrace -s 2235368Sgnn/* 3235368Sgnn * dispqlen.d - dispatcher queue length by CPU. 4235368Sgnn * Written using DTrace (Solaris 10 3/05). 5235368Sgnn * 6235368Sgnn * $Id: dispqlen.d 3 2007-08-01 10:50:08Z brendan $ 7235368Sgnn * 8235368Sgnn * USAGE: dispqlen.d # hit Ctrl-C to end sample 9235368Sgnn * 10235368Sgnn * NOTES: The dispatcher queue length is an indication of CPU saturation. 11235368Sgnn * It is not an indicatior of utilisation - the CPUs may or may not be 12235368Sgnn * utilised when the dispatcher queue reports a length of zero. 13235368Sgnn * 14235368Sgnn * SEE ALSO: uptime(1M) 15235368Sgnn * 16235368Sgnn * COPYRIGHT: Copyright (c) 2005 Brendan Gregg. 17235368Sgnn * 18235368Sgnn * CDDL HEADER START 19235368Sgnn * 20235368Sgnn * The contents of this file are subject to the terms of the 21235368Sgnn * Common Development and Distribution License, Version 1.0 only 22235368Sgnn * (the "License"). You may not use this file except in compliance 23235368Sgnn * with the License. 24235368Sgnn * 25235368Sgnn * You can obtain a copy of the license at Docs/cddl1.txt 26235368Sgnn * or http://www.opensolaris.org/os/licensing. 27235368Sgnn * See the License for the specific language governing permissions 28235368Sgnn * and limitations under the License. 29235368Sgnn * 30235368Sgnn * CDDL HEADER END 31235368Sgnn * 32235368Sgnn * 27-Jun-2005 Brendan Gregg Created this. 33235368Sgnn * 14-Feb-2006 " " Last update. 34235368Sgnn */ 35235368Sgnn 36235368Sgnn#pragma D option quiet 37235368Sgnn 38235368Sgnndtrace:::BEGIN 39235368Sgnn{ 40235368Sgnn printf("Sampling... Hit Ctrl-C to end.\n"); 41235368Sgnn} 42235368Sgnn 43235368Sgnnprofile:::profile-1000hz 44235368Sgnn{ 45235368Sgnn @queue[cpu] = 46235368Sgnn lquantize(curthread->t_cpu->cpu_disp->disp_nrunnable, 0, 64, 1); 47235368Sgnn} 48235368Sgnn 49235368Sgnndtrace:::END 50235368Sgnn{ 51235368Sgnn printa(" CPU %d%@d\n", @queue); 52235368Sgnn} 53