X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/e2fac8b15b12a7979f72090454d850e612fc5b13..b0d623f7f2ae71ed96e60569f61f9a9a27016e80:/tools/tests/libMicro/atomic.c

diff --git a/tools/tests/libMicro/atomic.c b/tools/tests/libMicro/atomic.c
new file mode 100644
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+++ b/tools/tests/libMicro/atomic.c
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+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms
+ * of the Common Development and Distribution License
+ * (the "License").  You may not use this file except
+ * in compliance with the License.
+ *
+ * You can obtain a copy of the license at
+ * src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing
+ * permissions and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL
+ * HEADER in each file and include the License file at
+ * usr/src/OPENSOLARIS.LICENSE.  If applicable,
+ * add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your
+ * own identifying information: Portions Copyright [yyyy]
+ * [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/*
+ * benchmarks atomic add on Solaris - useful for platform comparisons.
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <atomic.h>
+
+#include "libmicro.h"
+
+int
+benchmark_init()
+{
+	(void) sprintf(lm_usage, "note: measures atomic_add_32_nv()");
+
+	lm_tsdsize = 0;
+
+	return (0);
+}
+
+static unsigned int value = 0;
+
+/*ARGSUSED*/
+int
+benchmark(void *tsd, result_t *res)
+{
+	unsigned int			i;
+	for (i = 0; i < lm_optB; i += 10) {
+		(void) atomic_add_32_nv(&value, 1);
+		(void) atomic_add_32_nv(&value, 1);
+		(void) atomic_add_32_nv(&value, 1);
+		(void) atomic_add_32_nv(&value, 1);
+		(void) atomic_add_32_nv(&value, 1);
+		(void) atomic_add_32_nv(&value, 1);
+		(void) atomic_add_32_nv(&value, 1);
+		(void) atomic_add_32_nv(&value, 1);
+		(void) atomic_add_32_nv(&value, 1);
+		(void) atomic_add_32_nv(&value, 1);
+	}
+	res->re_count = i;
+
+	return (0);
+}