1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 * 26 * This D script is used as an example in the Solaris Dynamic Tracing Guide 27 * wiki in the "io Provider" Chapter. 28 * 29 * The full text of the this chapter may be found here: 30 * 31 * http://wikis.sun.com/display/DTrace/io+Provider 32 * 33 * On machines that have DTrace installed, this script is available as 34 * iotime.d in /usr/demo/dtrace, a directory that contains all D scripts 35 * used in the Solaris Dynamic Tracing Guide. A table of the scripts and their 36 * corresponding chapters may be found here: 37 * 38 * file:///usr/demo/dtrace/index.html 39 */ 40 41 #pragma D option quiet 42 43 BEGIN 44 { 45 printf("%10s %58s %2s %7s\n", "DEVICE", "FILE", "RW", "MS"); 46 } 47 48 io:::start 49 { 50 start[args[0]->b_edev, args[0]->b_blkno] = timestamp; 51 } 52 53 io:::done 54 /start[args[0]->b_edev, args[0]->b_blkno]/ 55 { 56 this->elapsed = timestamp - start[args[0]->b_edev, args[0]->b_blkno]; 57 printf("%10s %58s %2s %3d.%03d\n", args[1]->dev_statname, 58 args[2]->fi_pathname, args[0]->b_flags & B_READ ? "R" : "W", 59 this->elapsed / 1000000, (this->elapsed / 1000) % 1000); 60 start[args[0]->b_edev, args[0]->b_blkno] = 0; 61 } 62