/* * 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. */ /* * test exp performance (should add range check) */ #include <unistd.h> #include <stdio.h> #include <stdlib.h> #include <math.h> #include "libmicro.h" int benchmark_init() { (void) sprintf(lm_usage, "note: measures exp()"); lm_nsecs_per_op = 25; lm_tsdsize = 0; return (0); } /*ARGSUSED*/ int benchmark(void *tsd, result_t *res) { int i; /* Added as part of the fix for radar 7508837 */ double t = 0.0; for (i = 0; i < lm_optB; i += 10) { double value = 1.0 / (i + .01); #if 1 /* Apple added code, see radar 7508837 */ t += exp(value); t += exp(value + 1.0); t += exp(value + 2.0); t += exp(value + 3.0); t += exp(value + 4.0); t += exp(value + 5.0); t += exp(value + 6.0); t += exp(value + 7.0); t += exp(value + 8.0); t += exp(value + 9.0); } res->re_count = i; return ((int)(t - t)); #else (void) exp(value); (void) exp(value); (void) exp(value); (void) exp(value); (void) exp(value); (void) exp(value); (void) exp(value); (void) exp(value); (void) exp(value); (void) exp(value); } res->re_count = i; return (0); #endif /* end of Apple fix */ }