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      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  * test exp performance (should add range check)
     33  */
     34 
     35 #include <unistd.h>
     36 #include <stdio.h>
     37 #include <stdlib.h>
     38 #include <math.h>
     39 
     40 #include "libmicro.h"
     41 
     42 int
     43 benchmark_init()
     44 {
     45 	(void) sprintf(lm_usage, "note: measures exp()");
     46 	lm_nsecs_per_op = 25;
     47 	lm_tsdsize = 0;
     48 	return (0);
     49 }
     50 
     51 /*ARGSUSED*/
     52 int
     53 benchmark(void *tsd, result_t *res)
     54 {
     55 	int			i;
     56 
     57 	for (i = 0; i < lm_optB; i += 10) {
     58 		double value = 1.0 / (i + .01);
     59 		(void) exp(value);
     60 		(void) exp(value);
     61 		(void) exp(value);
     62 		(void) exp(value);
     63 		(void) exp(value);
     64 		(void) exp(value);
     65 		(void) exp(value);
     66 		(void) exp(value);
     67 		(void) exp(value);
     68 		(void) exp(value);
     69 	}
     70 	res->re_count = i;
     71 
     72 	return (0);
     73 }
     74