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/* $Id: test_xmem.c,v 1.4 2006/02/23 11:33:15 yjung Exp $
*
* This file is part of the ESO QFITS Library
* Copyright (C) 2001-2004 European Southern Observatory
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* $Author: yjung $
* $Date: 2006/02/23 11:33:15 $
* $Revision: 1.4 $
* $Name: qfits-6_2_0 $
*/
/*---------------------------------------------------------------------------
Includes
---------------------------------------------------------------------------*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <time.h>
#include "qfits_memory.h"
/*---------------------------------------------------------------------------
Define
---------------------------------------------------------------------------*/
#define PTRS_TOT_NB 20000
#define PTRS_SIZE 10
#define PTRS_TMP_NB 5
#define ITERATIONS_NB 5000
/*---------------------------------------------------------------------------
Main
---------------------------------------------------------------------------*/
int main(void)
{
int * array[PTRS_TOT_NB] ;
int * ptr[PTRS_TMP_NB] ;
clock_t chrono ;
double elapsed_time ;
int i, j ;
/* Start chrono */
chrono = clock() ;
/* Allocate pointers */
printf("----- RAM allocation\n");
for (i=0 ; i<PTRS_TOT_NB ; i++) {
array[i] = qfits_malloc(PTRS_SIZE*sizeof(int));
array[i][0] = i ;
}
/* Stop chrono */
elapsed_time = (double)(clock() - chrono) / (double)CLOCKS_PER_SEC ;
printf("\tFor allocation: %4.2f sec\n", elapsed_time) ;
/* Some prints */
for (i=0 ; i<3 ; i++) {
printf("a[%d][0]=%d\n", i, array[i][0]);
}
printf("...\n");
for (i=PTRS_TOT_NB-3 ; i<PTRS_TOT_NB ; i++) {
printf("a[%d][0]=%d\n", i, array[i][0]);
}
/* Start chrono */
chrono = clock() ;
/* Test improvement of allocate/deallocate loop */
for (i=0 ; i<ITERATIONS_NB ; i++) {
for (j=0 ; j<PTRS_TMP_NB ; j++) {
ptr[j] = qfits_malloc(PTRS_SIZE*sizeof(int));
}
for (j=0 ; j<PTRS_TMP_NB ; j++) {
qfits_free(ptr[j]) ;
}
}
/* Stop chrono */
elapsed_time = (double)(clock() - chrono) / (double)CLOCKS_PER_SEC ;
printf("\tFor the alloc/dealloc loop: %4.2f sec\n", elapsed_time) ;
/* Start chrono */
chrono = clock() ;
/* Deallocate pointers */
printf("----- RAM deallocation\n");
for (i=0 ; i<PTRS_TOT_NB ; i++) qfits_free(array[i]) ;
/* Stop chrono */
elapsed_time = (double)(clock() - chrono) / (double)CLOCKS_PER_SEC ;
printf("\tFor deallocation: %4.2f sec\n", elapsed_time) ;
qfits_memory_status() ;
return 0 ;
}
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