general.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/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 1998-2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <thread.h>
/*
* This file contains a general health check for the libmtmalloc.so.1 lib.
* It creates NCPUS worth of threads and has eadch perform 1000000 random
* small allocs and then free them.
*
* cc -O -o general general.c -lmtmalloc
*/
#define N 1000000
void *be_thread(void *);
main(int argc, char ** argv)
{
int i;
thread_t tid[512]; /* We'll never have more than that! hah */
i = sysconf(_SC_NPROCESSORS_CONF);
srand(getpid());
while (i)
thr_create(NULL, 1<<23, be_thread, NULL, THR_BOUND, &tid[i--]);
while (thr_join(NULL, NULL, NULL) == 0);
exit(0);
}
/* ARGSUSED */
void *
be_thread(void * foo)
{
int i = N;
char *bar[N];
while (i--)
bar[i] = malloc(rand()%64);
i = N;
while (i--)
free(bar[i]);
}