xref: /illumos-gate/usr/src/cmd/dtrace/demo/io/iotime.d (revision 4de2612967d06c4fdbf524a62556a1e8118a006f)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma D option quiet
28 
29 BEGIN
30 {
31 	printf("%10s %58s %2s %7s\n", "DEVICE", "FILE", "RW", "MS");
32 }
33 
34 io:::start
35 {
36 	start[args[0]->b_edev, args[0]->b_blkno] = timestamp;
37 }
38 
39 io:::done
40 /start[args[0]->b_edev, args[0]->b_blkno]/
41 {
42 	this->elapsed = timestamp - start[args[0]->b_edev, args[0]->b_blkno];
43 	printf("%10s %58s %2s %3d.%03d\n", args[1]->dev_statname,
44 	    args[2]->fi_pathname, args[0]->b_flags & B_READ ? "R" : "W",
45 	    this->elapsed / 10000000, (this->elapsed / 1000) % 1000);
46 	start[args[0]->b_edev, args[0]->b_blkno] = 0;
47 }
48