85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
/*
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* Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
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* The President and Fellows of Harvard College.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* huge.c
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*
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* Tests the VM system by accessing a large array (sparse) that
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* cannot fit into memory.
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*
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* When the VM system assignment is done, your system should be able
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* to run this successfully.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#define PageSize 4096
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#define NumPages 512
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int sparse[NumPages][PageSize]; /* use only the first element in the row */
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int
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main(void)
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{
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int i,j;
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printf("Entering the huge program - I will stress test your VM\n");
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/* move number in so that sparse[i][0]=i */
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for (i=0; i<NumPages; i++) {
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sparse[i][0]=i;
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}
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printf("stage [1] done\n");
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/* increment each location 5 times */
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for (j=0; j<5; j++) {
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for (i=0; i<NumPages; i++) {
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sparse[i][0]++;
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}
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printf("stage [2.%d] done\n", j);
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}
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printf("stage [2] done\n");
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/* check if the numbers are sane */
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for (i=NumPages-1; i>=0; i--) {
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if (sparse[i][0]!=i+5) {
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printf("BAD NEWS!!! - your VM mechanism has a bug!\n");
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exit(1);
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}
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}
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printf("You passed!\n");
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return 0;
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}
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