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
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29/*
30 * ASSERTION:
31 *	Verify doc example 7-1
32 *
33 * SECTION:
34 *	DocExamples/rwinfo
35 */
36
37
38#pragma D option quiet
39
40struct callinfo {
41	uint64_t ts;
42	uint64_t elapsed;
43	uint64_t calls;
44	size_t maxbytes;
45};
46
47struct callinfo i[string];
48
49syscall::read:entry,
50syscall::write:entry
51/pid == 100551/
52{
53	i[probefunc].ts = timestamp;
54	i[probefunc].calls++;
55	i[probefunc].maxbytes = arg2 > i[probefunc].maxbytes ?
56	    arg2 : i[probefunc].maxbytes;
57}
58
59syscall::read:return,
60syscall::write:return
61/i[probefunc].ts != 0 && pid == 100551/
62{
63	i[probefunc].elapsed += timestamp - i[probefunc].ts;
64}
65
66END
67{
68	printf("      calls  max bytes  elapsed nsecs\n");
69	printf("-----  -----  ---------  -------------\n");
70	printf("   read %5d  %9d   %d\n", i["read"].calls,
71	    i["read"].maxbytes, i["read"].elapsed);
72	printf("   write %5d  %9d   %d\n", i["write"].calls,
73	    i["write"].maxbytes, i["write"].elapsed);
74}
75