/* mpmss.c: MPM STRESS TEST
*
* $Id: //info.ravenbrook.com/project/mps/version/1.103/code/mpmss.c#1 $
* Copyright (c) 2001 Ravenbrook Limited. See end of file for license.
* Portions copyright (C) 2002 Global Graphics Software.
*/
#include "mpscmv.h"
#include "mpscmvff.h"
#include "mpslib.h"
#include "mpsavm.h"
#include "testlib.h"
#include "mps.h"
#include <stdlib.h>
#include <stdarg.h>
/* @@@@ Hack due to missing mpscmfs.h */
extern mps_class_t PoolClassMFS(void);
#define testArenaSIZE ((((size_t)64)<<20) - 4)
#define smallArenaSIZE ((((size_t)1)<<20) - 4)
#define testSetSIZE 200
#define testLOOPS 10
/* stress -- create a pool of the requested type and allocate in it */
static mps_res_t stress(mps_class_t class, size_t (*size)(int i),
mps_arena_t arena, ...)
{
mps_res_t res;
mps_pool_t pool;
va_list arg;
int i, k;
int *ps[testSetSIZE];
size_t ss[testSetSIZE];
va_start(arg, arena);
res = mps_pool_create_v(&pool, arena, class, arg);
va_end(arg);
if (res != MPS_RES_OK)
return res;
/* allocate a load of objects */
for (i=0; i<testSetSIZE; ++i) {
ss[i] = (*size)(i);
res = mps_alloc((mps_addr_t *)&ps[i], pool, ss[i]);
if (res != MPS_RES_OK)
return res;
if (ss[i] >= sizeof(ps[i]))
*ps[i] = 1; /* Write something, so it gets swap. */
}
mps_pool_check_fenceposts(pool);
for (k=0; k<testLOOPS; ++k) {
/* shuffle all the objects */
for (i=0; i<testSetSIZE; ++i) {
int j = rnd()%(testSetSIZE-i);
void *tp;
size_t ts;
tp = ps[j]; ts = ss[j];
ps[j] = ps[i]; ss[j] = ss[i];
ps[i] = tp; ss[i] = ts;
}
/* free half of the objects */
/* upper half, as when allocating them again we want smaller objects */
/* see randomSize() */
for (i=testSetSIZE/2; i<testSetSIZE; ++i) {
mps_free(pool, (mps_addr_t)ps[i], ss[i]);
/* if (i == testSetSIZE/2) */
/* PoolDescribe((Pool)pool, mps_lib_stdout); */
}
/* allocate some new objects */
for (i=testSetSIZE/2; i<testSetSIZE; ++i) {
ss[i] = (*size)(i);
res = mps_alloc((mps_addr_t *)&ps[i], pool, ss[i]);
if (res != MPS_RES_OK) return res;
}
}
mps_pool_destroy(pool);
return MPS_RES_OK;
}
#define max(a, b) (((a) > (b)) ? (a) : (b))
#define alignUp(w, a) (((w) + (a) - 1) & ~((size_t)(a) - 1))
/* randomSize -- produce sizes both latge and small */
static size_t randomSize(int i)
{
/* Make the range large enough to span three pages in the segment table: */
/* 160 segments/page, page size max 0x2000. */
size_t maxSize = 2 * 160 * 0x2000;
/* Reduce by a factor of 2 every 10 cycles. Total allocation about 40 MB. */
return rnd() % max((maxSize >> (i / 10)), 2) + 1;
}
/* randomSize8 -- produce sizes both latge and small, 8-byte aligned */
static size_t randomSize8(int i)
{
size_t maxSize = 2 * 160 * 0x2000;
/* Reduce by a factor of 2 every 10 cycles. Total allocation about 40 MB. */
return alignUp(rnd() % max((maxSize >> (i / 10)), 2) + 1, 8);
}
/* fixedSize -- produce always the same size */
static size_t fixedSizeSize = 0;
static size_t fixedSize(int i)
{
testlib_unused(i);
return fixedSizeSize;
}
/* testInArena -- test all the pool classes in the given arena */
static mps_pool_debug_option_s bothOptions =
{ (void *)"postpost", 8, (void *)"DEAD", 4 };
static mps_pool_debug_option_s fenceOptions =
{ (void *)"\0XXX ''\"\"'' XXX\0", 16, NULL, 0 };
static int testInArena(mps_arena_t arena, mps_pool_debug_option_s *options)
{
/* IWBN to test MVFFDebug, but the MPS doesn't support debugging */
/* cross-segment allocation (possibly MVFF ought not to). */
printf("MVFF\n");
die(stress(mps_class_mvff(), randomSize8, arena,
(size_t)65536, (size_t)32, (size_t)4, TRUE, TRUE, TRUE),
"stress MVFF");
printf("MV debug\n");
die(stress(mps_class_mv_debug(), randomSize, arena,
options, (size_t)65536, (size_t)32, (size_t)65536),
"stress MV debug");
printf("MFS\n");
fixedSizeSize = 13;
die(stress(PoolClassMFS(),
fixedSize, arena, (size_t)100000, fixedSizeSize),
"stress MFS");
printf("MV\n");
die(stress(mps_class_mv(), randomSize, arena,
(size_t)65536, (size_t)32, (size_t)65536),
"stress MV");
return 0;
}
int main(int argc, char **argv)
{
mps_arena_t arena;
randomize(argc, argv);
die(mps_arena_create(&arena, mps_arena_class_vm(), testArenaSIZE),
"mps_arena_create");
testInArena(arena, &bothOptions);
mps_arena_destroy(arena);
die(mps_arena_create(&arena, mps_arena_class_vm(), smallArenaSIZE),
"mps_arena_create");
testInArena(arena, &fenceOptions);
mps_arena_destroy(arena);
fflush(stdout); /* synchronize */
fprintf(stderr, "\nConclusion: Failed to find any defects.\n");
return 0;
}
/* C. COPYRIGHT AND LICENSE
*
* Copyright (C) 2001-2002 Ravenbrook Limited <http://www.ravenbrook.com/>.
* All rights reserved. This is an open source license. Contact
* Ravenbrook for commercial licensing options.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Redistributions in any form must be accompanied by information on how
* to obtain complete source code for this software and any accompanying
* software that uses this software. The source code must either be
* included in the distribution or be available for no more than the cost
* of distribution plus a nominal fee, and must be freely redistributable
* under reasonable conditions. For an executable file, complete source
* code means the source code for all modules it contains. It does not
* include source code for modules or files that typically accompany the
* major components of the operating system on which the executable file
* runs.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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