tools/tests/libMicro/strcmp.c

   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 #include <unistd.h>
  32 #include <stdlib.h>
  33 #include <stdio.h>
  34 #include <string.h>
  35
  36 #include "libmicro.h"
  37
  38 static int unaligned = 0;
  39 static int opts = 100;
  40
  41 typedef struct {
  42         int     ts_once;
  43         char    *ts_a;
  44         char    *ts_b;
  45         int     ts_fakegcc;
  46 } tsd_t;
  47
  48 int
  49 benchmark_init()
  50 {
  51
  52         lm_tsdsize = sizeof (tsd_t);
  53
  54         (void) sprintf(lm_optstr, "s:n");
  55
  56         (void) sprintf(lm_usage,
  57             "       [-s string size (default %d)]\n"
  58             "       [-n causes unaligned cmp]\n"
  59             "notes: measures strcmp()\n",
  60             opts);
  61
  62         (void) sprintf(lm_header, "%8s", "size");
  63
  64         return (0);
  65 }
  66
  67 int
  68 benchmark_optswitch(int opt, char *optarg)
  69 {
  70         switch (opt) {
  71         case 'n':
  72                 unaligned = 1;
  73                 break;
  74         case 's':
  75                 opts = sizetoll(optarg);
  76                 break;
  77         default:
  78                 return (-1);
  79         }
  80         return (0);
  81 }
  82
  83 int
  84 benchmark_initbatch(void *tsd)
  85 {
  86         tsd_t                   *ts = (tsd_t *)tsd;
  87         static char             *demo =
  88             "The quick brown fox jumps over the lazy dog.";
  89
  90         if (ts->ts_once++ == 0) {
  91                 int l = strlen(demo);
  92                 int i;
  93
  94                 ts->ts_a = malloc(opts + 1);
  95                 ts->ts_b = malloc(opts + 1 + unaligned);
  96                 ts->ts_b += unaligned;
  97
  98                 for (i = 0; i < opts; i++) {
  99                         ts->ts_a[i] = ts->ts_b[i] = demo[i%l];
 100                 }
 101                 ts->ts_a[opts] = 0;
 102                 ts->ts_b[opts] = 0;
 103         }
 104         return (0);
 105 }
 106
 107 int
 108 benchmark(void *tsd, result_t *res)
 109 {
 110         int                     i;
 111         tsd_t                   *ts = (tsd_t *)tsd;
 112         int                     *sum = &ts->ts_fakegcc;
 113         char                    *src = ts->ts_a;
 114         char                    *src2 = ts->ts_b;
 115
 116         res->re_errors = 0;
 117
 118         for (i = 0; i < lm_optB; i += 10) {
 119                 *sum += strcmp(src, src2);
 120                 *sum += strcmp(src, src2);
 121                 *sum += strcmp(src, src2);
 122                 *sum += strcmp(src, src2);
 123                 *sum += strcmp(src, src2);
 124                 *sum += strcmp(src, src2);
 125                 *sum += strcmp(src, src2);
 126                 *sum += strcmp(src, src2);
 127                 *sum += strcmp(src, src2);
 128                 *sum += strcmp(src, src2);
 129         }
 130
 131         res->re_count = i;
 132
 133         return (0);
 134 }
 135
 136 char *
 137 benchmark_result()
 138 {
 139         static char     result[256];
 140
 141         if (unaligned == 0)
 142                 (void) sprintf(result, "%8d", opts);
 143         else
 144                 (void) sprintf(result, "%8d <unaligned>", opts);
 145
 146         return (result);
 147 }