Home | History | Annotate | Download | only in libmicro
      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  * benchmark open
     33  */
     34 
     35 
     36 #include <unistd.h>
     37 #include <stdlib.h>
     38 #include <stdio.h>
     39 #include <fcntl.h>
     40 
     41 #include "libmicro.h"
     42 
     43 typedef struct {
     44 	int			ts_once;
     45 	int			*ts_fds;
     46 } tsd_t;
     47 
     48 #define	DEFF			"/dev/null"
     49 
     50 static char			*optf = DEFF;
     51 
     52 int
     53 benchmark_init()
     54 {
     55 	lm_tsdsize = sizeof (tsd_t);
     56 
     57 	lm_defB = 256;
     58 
     59 	(void) sprintf(lm_usage,
     60 	    "       [-f file-to-open (default %s)]\n"
     61 	    "notes: measures open()\n",
     62 	    DEFF);
     63 
     64 	(void) sprintf(lm_optstr, "f:");
     65 
     66 	return (0);
     67 }
     68 
     69 int
     70 benchmark_optswitch(int opt, char *optarg)
     71 {
     72 	switch (opt) {
     73 	case 'f':
     74 		optf = optarg;
     75 		break;
     76 	default:
     77 		return (-1);
     78 	}
     79 	return (0);
     80 }
     81 
     82 int
     83 benchmark_initrun()
     84 {
     85 	(void) setfdlimit(lm_optB * lm_optT + 10);
     86 
     87 	return (0);
     88 }
     89 
     90 int
     91 benchmark_initbatch(void *tsd)
     92 {
     93 	tsd_t			*ts = (tsd_t *)tsd;
     94 	int			i;
     95 	int			errors = 0;
     96 
     97 	if (ts->ts_once++ == 0) {
     98 		ts->ts_fds = (int *)malloc(lm_optB * sizeof (int));
     99 		if (ts->ts_fds == NULL) {
    100 			errors++;
    101 		}
    102 		for (i = 0; i < lm_optB; i++) {
    103 			ts->ts_fds[i] = -1;
    104 		}
    105 	}
    106 
    107 	return (errors);
    108 }
    109 
    110 int
    111 benchmark(void *tsd, result_t *res)
    112 {
    113 	tsd_t			*ts = (tsd_t *)tsd;
    114 	int			i;
    115 
    116 	for (i = 0; i < lm_optB; i++) {
    117 		ts->ts_fds[i] = open(optf, O_RDONLY);
    118 		if (ts->ts_fds[i] < 0) {
    119 			res->re_errors++;
    120 		}
    121 	}
    122 	res->re_count = i;
    123 
    124 	return (0);
    125 }
    126 
    127 int
    128 benchmark_finibatch(void *tsd)
    129 {
    130 	tsd_t			*ts = (tsd_t *)tsd;
    131 	int			i;
    132 
    133 	for (i = 0; i < lm_optB; i++) {
    134 		(void) close(ts->ts_fds[i]);
    135 	}
    136 
    137 	return (0);
    138 }
    139