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pjs/ef/gc/test/smtest.c

396 строки
12 KiB
C
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
/*******************************************************************************
S P O R T M O D E L
_____
____/_____\____
/__o____o____o__\ __
\_______________/ (@@)/
/\_____|_____/\ x~[]~
~~~~~~~~~~~/~~~~~~~|~~~~~~~\~~~~~~~~/\~~~~~~~~~
Advanced Technology Garbage Collector
Copyright (c) 1997 Netscape Communications, Inc. All rights reserved.
Author: Warren Harris
*******************************************************************************/
#include "prinit.h"
#include "sm.h"
#include "smobj.h"
#include "smpage.h"
#include "smheap.h"
#include "smtrav.h"
#include <stdio.h>
#include <time.h>
#define K 1024
#define M (K*K)
#define PAGE (4*K)
#define MIN_HEAP_SIZE (4*M)
#define MAX_HEAP_SIZE (16*M)
FILE* out;
int toFile = 1;
int verbose = 0;
int testLargeObjects = 1;
#if defined(DEBUG) || defined(SM_DUMP)
//PRUword dumpFlags = SMDumpFlag_Detailed | SMDumpFlag_GCState | SMDumpFlag_Abbreviate;
PRUword dumpFlags = SMDumpFlag_Detailed;
//PRUword dumpFlags = 0;
#endif
/******************************************************************************/
SMObjectClass* MyClass;
SMObjectClass* MyLargeClass;
SMArrayClass* MyArrayClass;
typedef struct MyClassStruct {
SMObjStruct super;
struct MyClassStruct* next;
int value;
// void* foo[2]; /* to see internal fragmentation */
} MyClassStruct;
static void
MyClass_finalize(SMObject* self)
{
#if defined(DEBUG) || defined(SM_DUMP)
fprintf(out, "finalizing %d\n", SM_GET_FIELD(MyClassStruct, self, value));
#endif
}
static void
InitClasses(void)
{
SMFieldDesc* fds;
MyClass = (SMObjectClass*)malloc(sizeof(SMObjectClass)
+ (1 * sizeof(SMFieldDesc)));
SM_InitObjectClass(MyClass, NULL, sizeof(SMObjectClass),
sizeof(MyClassStruct), 1, 0);
fds = SM_CLASS_GET_INST_FIELD_DESCS((SMClass*)MyClass);
fds[0].offset = offsetof(MyClassStruct, next) / sizeof(void*);
fds[0].count = 1;
MyClass->data.finalize = MyClass_finalize;
MyLargeClass = (SMObjectClass*)malloc(sizeof(SMObjectClass)
+ (1 * sizeof(SMFieldDesc)));
SM_InitObjectClass(MyLargeClass, NULL, sizeof(SMObjectClass),
4097, 1, 0);
fds = SM_CLASS_GET_INST_FIELD_DESCS((SMClass*)MyLargeClass);
fds[0].offset = offsetof(MyClassStruct, next) / sizeof(void*);
fds[0].count = 1;
MyLargeClass->data.finalize = MyClass_finalize;
MyArrayClass = (SMArrayClass*)malloc(sizeof(SMArrayClass));
SM_InitArrayClass(MyArrayClass, NULL, (SMClass*)MyClass);
}
/******************************************************************************/
MyClassStruct* root = NULL;
static void
MarkRoots(SMGenNum genNum, PRBool copyCycle, void* data)
{
// SM_MarkThreadsConservatively(genNum, copyCycle, data); /* must be first */
SM_MarkRoots((SMObject**)&root, 1, PR_FALSE);
}
static void
BeforeHook(SMGenNum genNum, PRUword collectCount,
PRBool copyCycle, void* closure)
{
#ifdef xDEBUG
FILE* out = (FILE*)closure;
if (verbose) {
fprintf(out, "Before collection %u gen %u %s\n", collectCount, genNum,
(copyCycle ? "(copy cycle)" : ""));
SM_DumpGCHeap(out, dumpFlags);
}
#endif
}
static void
AfterHook(SMGenNum genNum, PRUword collectCount,
PRBool copyCycle, void* closure)
{
#ifdef xDEBUG
FILE* out = (FILE*)closure;
if (verbose) {
fprintf(out, "After collection %u gen %u %s\n", collectCount, genNum,
(copyCycle ? "(copy cycle)" : ""));
SM_DumpGCHeap(out, dumpFlags);
}
#endif
}
#define ITERATIONS 10000
int
main(void)
{
PRStatus status;
SMArray* arr;
MyClassStruct* obj;
MyClassStruct* conserv;
int i, cnt = 0;
struct tm *newtime;
time_t aclock;
void* randomPtr;
PRIntervalTime t1, t2;
int failure = 0;
if (toFile) {
out = fopen("smtest.out", "w+");
if (out == NULL) {
perror("Can't open smtest.out");
return -1;
}
}
else
out = stdout;
#if defined(DEBUG) || defined(SM_DUMP)
SM_SetTraceOutputFile(out);
#endif
time(&aclock);
newtime = localtime(&aclock);
fprintf(out, "SportModel Garbage Collector Test Program: %s\n", asctime(newtime));
PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
PR_SetThreadGCAble();
status = SM_InitGC(MIN_HEAP_SIZE, MAX_HEAP_SIZE,
BeforeHook, out,
AfterHook, out,
MarkRoots, NULL);
if (status != PR_SUCCESS)
return -1;
InitClasses();
t1 = PR_IntervalNow();
arr = SM_AllocArray(MyArrayClass, 13); /* gets collected */
randomPtr = (char*)SM_DECRYPT_ARRAY(arr) + (4096 * 200);
arr = SM_AllocArray(MyArrayClass, 13); /* try an array */
SM_ARRAY_ELEMENTS(arr)[3] = (SMObject*)root;
root = (MyClassStruct*)arr;
arr = NULL;
SM_Collect();
if (testLargeObjects) {
/* test large object allocation */
obj = (MyClassStruct*)SM_AllocObject(MyLargeClass); /* gets collected */
if (obj) {
((MyClassStruct*)SM_DECRYPT(obj))->value = cnt++;
}
else {
fprintf(out, "ALLOCATION FAILURE: Large Object\n");
failure = 1;
goto done;
}
obj = (MyClassStruct*)SM_AllocObject(MyLargeClass);
if (obj) {
((MyClassStruct*)SM_DECRYPT(obj))->value = cnt++;
SM_SET_FIELD(MyClassStruct, obj, next, root);
root = obj;
}
else {
fprintf(out, "ALLOCATION FAILURE: Large Object\n");
failure = 1;
goto done;
}
SM_Collect();
}
obj = (MyClassStruct*)SM_AllocObject(MyClass); /* gets collected */
if (obj) {
((MyClassStruct*)SM_DECRYPT(obj))->value = cnt++;
}
else {
fprintf(out, "ALLOCATION FAILURE: Small Object\n");
failure = 1;
goto done;
}
obj = (MyClassStruct*)SM_AllocObject(MyClass);
if (obj) {
((MyClassStruct*)SM_DECRYPT(obj))->value = cnt++;
SM_SET_FIELD(MyClassStruct, obj, next, root); /* link this into the root list */
root = obj;
}
else {
fprintf(out, "ALLOCATION FAILURE: Small Object\n");
failure = 1;
goto done;
}
conserv = (MyClassStruct*)SM_AllocObject(MyClass); /* keep a conservative root */
((MyClassStruct*)SM_DECRYPT(conserv))->value = cnt++;
arr = SM_AllocArray(MyArrayClass, 13); /* try an array */
SM_ARRAY_ELEMENTS(arr)[3] = (SMObject*)root;
root = (MyClassStruct*)arr;
arr = NULL;
obj = NULL;
SM_Collect();
SM_RunFinalization();
/* Force collection to occur for every subsequent object,
for testing purposes. */
#if 0
SM_SetCollectThresholds(1*M/*sizeof(MyClassStruct)*/,
sizeof(MyClassStruct),
sizeof(MyClassStruct),
sizeof(MyClassStruct),
0);
#endif
for (i = 0; i < ITERATIONS; i++) {
int size = rand() / 100 + 4;
/* allocate some random garbage */
// fprintf(out, "allocating array of size %d\n", size);
arr = SM_AllocArray(MyArrayClass, size);
if (arr) {
SM_ARRAY_ELEMENTS(arr)[3] = (SMObject*)root;
root = (MyClassStruct*)arr;
}
else {
fprintf(out, "ALLOCATION FAILURE: Array size %u index %d\n", size, i);
/* continue */
root = NULL;
#if defined(DEBUG) || defined(SM_DUMP)
// SM_DumpStats(out, dumpFlags);
SM_DumpPageMap(out, dumpFlags);
#endif
}
obj = (MyClassStruct*)SM_AllocObject(MyClass);
if (obj) {
((MyClassStruct*)SM_DECRYPT(obj))->value = cnt++;
SM_SET_FIELD(MyClassStruct, obj, next, root); /* link this into the root list */
root = obj;
}
else {
fprintf(out, "ALLOCATION FAILURE: Small Object index %d\n", i);
/* continue */
root = NULL;
#if defined(DEBUG) || defined(SM_DUMP)
// SM_DumpStats(out, dumpFlags);
SM_DumpPageMap(out, dumpFlags);
#endif
}
//SM_DumpStats(out, dumpFlags);
}
for (i = 0; i < 10; i++) {
SM_Collect();
}
SM_RunFinalization();
SM_Collect();
SM_RunFinalization();
t2 = PR_IntervalNow();
fprintf(out, "Test completed in %ums\n", PR_IntervalToMilliseconds(t2 - t1));
done:
#if defined(DEBUG) || defined(SM_DUMP)
// SM_DumpStats(out, dumpFlags);
SM_DumpPageMap(out, dumpFlags);
if (failure) SM_DumpGCHeap(out, dumpFlags);
#endif
if (verbose) {
/* list out all the objects */
i = 0;
obj = root;
while (obj) {
MyClassStruct* next;
if (SM_IS_OBJECT((SMObject*)obj)) {
fprintf(out, "%4d ", SM_GET_FIELD(MyClassStruct, obj, value));
next = SM_GET_FIELD(MyClassStruct, obj, next);
}
else {
fprintf(out, "[arr %p] ", obj);
next = (MyClassStruct*)SM_ARRAY_ELEMENTS((SMArray*)obj)[3];
}
if (i++ % 20 == 19)
fprintf(out, "\n");
obj = next;
}
fprintf(out, "\nconserv = %d\n", SM_GET_FIELD(MyClassStruct, conserv, value));
}
randomPtr = NULL;
root = NULL;
obj = NULL;
conserv = NULL;
SM_Collect();
SM_RunFinalization();
#if defined(DEBUG) || defined(SM_DUMP)
// SM_DumpStats(out, dumpFlags);
// SM_DumpPageMap(out, dumpFlags);
if (failure) SM_DumpGCHeap(out, dumpFlags);
#endif
SM_Collect();
SM_RunFinalization();
#if 0
#if defined(DEBUG) || defined(SM_DUMP)
// SM_DumpStats(out, dumpFlags);
// SM_DumpPageMap(out, dumpFlags);
if (failure) SM_DumpGCHeap(out, dumpFlags);
#endif
#endif
SM_Collect();
SM_RunFinalization();
#if 0
#if defined(DEBUG) || defined(SM_DUMP)
// SM_DumpStats(out, dumpFlags);
// SM_DumpPageMap(out, dumpFlags);
if (failure) SM_DumpGCHeap(out, dumpFlags);
#endif
#endif
SM_Collect();
SM_RunFinalization();
#if defined(DEBUG) || defined(SM_DUMP)
// SM_DumpStats(out, dumpFlags);
SM_DumpPageMap(out, dumpFlags);
if (failure) SM_DumpGCHeap(out, dumpFlags);
#endif
SM_CleanupGC(PR_TRUE);
status = PR_Cleanup();
if (status != PR_SUCCESS)
return -1;
return 0;
}
/******************************************************************************/
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