1#!/usr/sbin/dtrace -s 2/* 3 * pridist.d - process priority distribution. 4 * Written using DTrace (Solaris 10 3/05) 5 * 6 * This is a simple DTrace script that samples at 1000 Hz which process 7 * is on the CPUs, and what the priority is. A distribution plot is printed. 8 * 9 * With priorities, the higher the priority the better chance the process 10 * (actually, thread) has of being scheduled. 11 * 12 * This idea came from the script /usr/demo/dtrace/profpri.d, which 13 * produces similar output for one particular PID. 14 * 15 * 22-Apr-2006, ver 1.01 16 * 17 * USAGE: pridist.d # hit Ctrl-C to end sampling 18 * 19 * FIELDS: 20 * CMD process name 21 * PID process ID 22 * value process priority 23 * count number of samples of at least this priority 24 * 25 * BASED ON: /usr/demo/dtrace/profpri.d 26 * 27 * SEE ALSO: 28 * DTrace Guide "profile Provider" chapter (docs.sun.com) 29 * dispadmin(1M) 30 * 31 * PORTIONS: Copyright (c) 2005 Brendan Gregg. 32 * 33 * CDDL HEADER START 34 * 35 * The contents of this file are subject to the terms of the 36 * Common Development and Distribution License, Version 1.0 only 37 * (the "License"). You may not use this file except in compliance 38 * with the License. 39 * 40 * You can obtain a copy of the license at Docs/cddl1.txt 41 * or http://www.opensolaris.org/os/licensing. 42 * See the License for the specific language governing permissions 43 * and limitations under the License. 44 * 45 * CDDL HEADER END 46 * 47 * 13-Jun-2005 Brendan Gregg Created this. 48 */ 49 50#pragma D option quiet 51 52dtrace:::BEGIN 53{ 54 printf("Sampling... Hit Ctrl-C to end.\n"); 55} 56 57profile:::profile-1000hz 58{ 59 @Count[execname, pid] = lquantize(curlwpsinfo->pr_pri, 0, 100, 5); 60} 61 62dtrace:::END 63{ 64 printa(" CMD: %-16s PID: %d\n%@d\n", @Count); 65} 66