xnu-1456.1.26.tar.gz

[apple/xnu.git] / tools / tests / libMicro / memset.c

diff --git a/tools/tests/libMicro/memset.c b/tools/tests/libMicro/memset.c
new file mode 100644 (file)
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+++ b/tools/tests/libMicro/memset.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.
+ */
+
+/*
+ * memset
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "libmicro.h"
+
+#define        DEFS                    8192
+
+static long long               opts = DEFS;
+static int                     opta = 0;
+static int                     optu = 0;
+
+static char                    *optas = "4k";
+
+typedef struct {
+       char                    *ts_buff;
+       int                     ts_size;
+       int                     ts_offset;
+} tsd_t;
+
+int
+benchmark_init()
+{
+       lm_tsdsize = sizeof (tsd_t);
+
+       (void) sprintf(lm_optstr, "a:us:");
+
+       (void) sprintf(lm_usage,
+           "       [-s buffer-size (default %d)]\n"
+           "       [-a alignment (force buffer alignment)]\n"
+           "       [-u (try to always use uncached memory)]"
+           "notes: measures memset()\n",
+           DEFS);
+
+       (void) sprintf(lm_header, "%8s%16s", "size", "alignment");
+
+       return (0);
+}
+
+int
+benchmark_optswitch(int opt, char *optarg)
+{
+       switch (opt) {
+       case 'u':
+               optu = 1;
+               break;
+       case 's':
+               opts = sizetoll(optarg);
+               break;
+       case 'a':
+               opta = sizetoll(optarg);
+               if (opta > 4096)
+                       opta = 0;
+               else
+                       optas = optarg;
+               break;
+       default:
+               return (-1);
+       }
+       return (0);
+}
+
+int
+benchmark_initworker(void *tsd)
+{
+       tsd_t                   *ts = (tsd_t *)tsd;
+       int                     errors = 0;
+       int i;
+
+       if (optu) {
+               ts->ts_size     = 1024 * 1024 * 64;
+               ts->ts_offset   = opta;
+       } else {
+               ts->ts_size     = opta + opts;
+               ts->ts_offset   = opta;
+       }
+
+       if ((ts->ts_buff = (char *)valloc(ts->ts_size)) == NULL)
+               errors++;
+
+       for (i = 0; i < ts->ts_size; i++)
+               ts->ts_buff[i] = 0;
+       return (errors);
+}
+
+/*ARGSUSED*/
+int
+benchmark(void *tsd, result_t *res)
+{
+       int                     i;
+       tsd_t                   *ts = (tsd_t *)tsd;
+
+
+       if (optu) {
+               char *buf = ts->ts_buff + ts->ts_offset;
+               char *end = ts->ts_buff + ts->ts_size;
+               int offset = ts->ts_offset;
+               
+               unsigned long tmp;
+
+               for (i = 0; i < lm_optB; i ++) {
+                       (void) memset(buf, 0, opts);
+                       tmp = (((unsigned long)buf + opts + 4095) & ~4095) + offset;
+                       buf = (char *) tmp;
+                       if (buf + opts > end)
+                               buf = ts->ts_buff + offset;
+               }
+       } else {
+               char *buf = ts->ts_buff + ts->ts_offset;
+
+               for (i = 0; i < lm_optB; i += 10) {
+                       (void) memset(buf, 0, opts);
+                       (void) memset(buf, 0, opts);
+                       (void) memset(buf, 0, opts);
+                       (void) memset(buf, 0, opts);
+                       (void) memset(buf, 0, opts);
+                       (void) memset(buf, 0, opts);
+                       (void) memset(buf, 0, opts);
+                       (void) memset(buf, 0, opts);
+                       (void) memset(buf, 0, opts);
+                       (void) memset(buf, 0, opts);
+               }
+       }
+       res->re_count = i;
+
+       return (0);
+}
+
+char *
+benchmark_result()
+{
+       static char             result[256];
+
+       (void) sprintf(result, "%8lld%12s", opts, optas);
+
+       return (result);
+}