1235368Sgnn#!/usr/sbin/dtrace -s 2235368Sgnn/* 3235368Sgnn * priclass.d - priority distribution by scheduling class. 4235368Sgnn * Written using DTrace (Solaris 10 3/05) 5235368Sgnn * 6235368Sgnn * This is a simple DTrace script that samples at 1000 Hz the current 7235368Sgnn * thread's scheduling class and priority. A distribution plot is printed. 8235368Sgnn * 9235368Sgnn * With priorities, the higher the priority the better chance the thread 10235368Sgnn * has of being scheduled. 11235368Sgnn * 12235368Sgnn * This idea came from the script /usr/demo/dtrace/pri.d, which 13235368Sgnn * produces similar output for priority changes, not samples. 14235368Sgnn * 15235368Sgnn * $Id: priclass.d 3 2007-08-01 10:50:08Z brendan $ 16235368Sgnn * 17235368Sgnn * USAGE: priclass.d # hit Ctrl-C to end sampling 18235368Sgnn * 19235368Sgnn * FIELDS: 20235368Sgnn * value process priority 21235368Sgnn * count number of samples of at least this priority 22235368Sgnn * 23235368Sgnn * Also printed is the scheduling class, 24235368Sgnn * 25235368Sgnn * TS time sharing 26235368Sgnn * IA interactive 27235368Sgnn * RT real time 28235368Sgnn * SYS system 29235368Sgnn * FSS fair share schedular 30235368Sgnn * 31235368Sgnn * BASED ON: /usr/demo/dtrace/pri.d 32235368Sgnn * 33235368Sgnn * SEE ALSO: DTrace Guide "profile Provider" chapter (docs.sun.com) 34235368Sgnn * dispadmin(1M) 35235368Sgnn * 36235368Sgnn * PORTIONS: Copyright (c) 2006 Brendan Gregg. 37235368Sgnn * 38235368Sgnn * CDDL HEADER START 39235368Sgnn * 40235368Sgnn * The contents of this file are subject to the terms of the 41235368Sgnn * Common Development and Distribution License, Version 1.0 only 42235368Sgnn * (the "License"). You may not use this file except in compliance 43235368Sgnn * with the License. 44235368Sgnn * 45235368Sgnn * You can obtain a copy of the license at Docs/cddl1.txt 46235368Sgnn * or http://www.opensolaris.org/os/licensing. 47235368Sgnn * See the License for the specific language governing permissions 48235368Sgnn * and limitations under the License. 49235368Sgnn * 50235368Sgnn * CDDL HEADER END 51235368Sgnn * 52235368Sgnn * 12-Feb-2006 Brendan Gregg Created this. 53235368Sgnn * 22-Apr-2006 " " Last update. 54235368Sgnn */ 55235368Sgnn 56235368Sgnn#pragma D option quiet 57235368Sgnn 58235368Sgnndtrace:::BEGIN 59235368Sgnn{ 60235368Sgnn printf("Sampling... Hit Ctrl-C to end.\n"); 61235368Sgnn} 62235368Sgnn 63235368Sgnnprofile:::profile-1000hz 64235368Sgnn{ 65235368Sgnn @count[stringof(curlwpsinfo->pr_clname)] 66235368Sgnn = lquantize(curlwpsinfo->pr_pri, 0, 170, 10); 67235368Sgnn} 68