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-rw-r--r--native/libMicro-0.4.0/memcpy.c160
1 files changed, 160 insertions, 0 deletions
diff --git a/native/libMicro-0.4.0/memcpy.c b/native/libMicro-0.4.0/memcpy.c
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+++ b/native/libMicro-0.4.0/memcpy.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.
+ */
+
+/*
+ * memcpy
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "libmicro.h"
+
+#define DEFS 8192
+#define DEFR 1
+
+static long long opts = DEFS;
+static int optf;
+static int optt;
+static int opta;
+
+typedef struct {
+ char *ts_src;
+ char *ts_dest;
+ int ts_srcsize;
+ int ts_destsize;
+} tsd_t;
+
+int
+benchmark_init()
+{
+ lm_tsdsize = sizeof (tsd_t);
+
+ (void) sprintf(lm_optstr, "a:s:ft");
+
+ (void) sprintf(lm_usage,
+ " [-s buffer-size (default %d)]\n"
+ " [-a relative alignment (default page aligned)]\n"
+ " [-f (rotate \"from\" buffer to keep it out of cache)]\n"
+ " [-t (rotate \"to\" buffer to keep it out of cache)]\n"
+ "notes: measures memcpy()\n",
+ DEFS);
+
+ (void) sprintf(lm_header, "%8s", "size");
+
+ return (0);
+}
+
+int
+benchmark_optswitch(int opt, char *optarg)
+{
+ switch (opt) {
+ case 'f':
+ optf++;
+ break;
+ case 't':
+ optt++;
+ break;
+ case 's':
+ opts = sizetoll(optarg);
+ break;
+ case 'a':
+ opta = sizetoint(optarg);
+ break;
+ default:
+ return (-1);
+ }
+ return (0);
+}
+
+int
+benchmark_initworker(void *tsd)
+{
+ tsd_t *ts = (tsd_t *)tsd;
+
+ if (optf)
+ ts->ts_srcsize = 64 * 1024 * 1024;
+ else
+ ts->ts_srcsize = opts + opta;
+
+ if (optt)
+ ts->ts_destsize = 64 * 1024 * 1024;
+ else
+ ts->ts_destsize = (int)opts;
+
+
+ ts->ts_src = opta + (char *)valloc(ts->ts_srcsize);
+ ts->ts_dest = valloc(ts->ts_destsize);
+
+ return (0);
+}
+
+int
+benchmark(void *tsd, result_t *res)
+{
+ tsd_t *ts = (tsd_t *)tsd;
+ int i;
+ char *src = ts->ts_src;
+ char *dest = ts->ts_dest;
+
+ int bump = (int)opts;
+
+ if (bump < 1024)
+ bump = 1024; /* avoid prefetched area */
+ for (i = 0; i < lm_optB; i++) {
+ (void) memcpy(dest, src, opts);
+ if (optf) {
+ src += bump;
+ if (src + opts > ts->ts_src + ts->ts_srcsize)
+ src = ts->ts_src;
+ }
+ if (optt) {
+ dest += bump;
+ if (dest + opts > ts->ts_dest + ts->ts_destsize)
+ dest = ts->ts_dest;
+ }
+ }
+
+ res->re_count = i;
+
+ return (0);
+}
+
+char *
+benchmark_result()
+{
+ static char result[256];
+
+ (void) sprintf(result, "%8lld", opts);
+
+ return (result);
+}