1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms
5 * of the Common Development and Distribution License
6 * (the "License").  You may not use this file except
7 * in compliance with the License.
8 *
9 * You can obtain a copy of the license at
10 * src/OPENSOLARIS.LICENSE
11 * or http://www.opensolaris.org/os/licensing.
12 * See the License for the specific language governing
13 * permissions and limitations under the License.
14 *
15 * When distributing Covered Code, include this CDDL
16 * HEADER in each file and include the License file at
17 * usr/src/OPENSOLARIS.LICENSE.  If applicable,
18 * add the following below this CDDL HEADER, with the
19 * fields enclosed by brackets "[]" replaced with your
20 * own identifying information: Portions Copyright [yyyy]
21 * [name of copyright owner]
22 *
23 * CDDL HEADER END
24 */
25
26/*
27 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
28 * Use is subject to license terms.
29 */
30
31/*
32 * benchmarks atomic add on Solaris - useful for platform comparisons.
33 */
34
35#include <unistd.h>
36#include <stdio.h>
37#include <stdlib.h>
38#include <atomic.h>
39
40#include "libmicro.h"
41
42int
43benchmark_init()
44{
45	(void) sprintf(lm_usage, "note: measures atomic_add_32_nv()");
46
47	lm_tsdsize = 0;
48
49	return (0);
50}
51
52static unsigned int value = 0;
53
54/*ARGSUSED*/
55int
56benchmark(void *tsd, result_t *res)
57{
58	unsigned int			i;
59	for (i = 0; i < lm_optB; i += 10) {
60		(void) atomic_add_32_nv(&value, 1);
61		(void) atomic_add_32_nv(&value, 1);
62		(void) atomic_add_32_nv(&value, 1);
63		(void) atomic_add_32_nv(&value, 1);
64		(void) atomic_add_32_nv(&value, 1);
65		(void) atomic_add_32_nv(&value, 1);
66		(void) atomic_add_32_nv(&value, 1);
67		(void) atomic_add_32_nv(&value, 1);
68		(void) atomic_add_32_nv(&value, 1);
69		(void) atomic_add_32_nv(&value, 1);
70	}
71	res->re_count = i;
72
73	return (0);
74}
75