i'm playign with memory pools for evas lists. it seems to improve things.

SVN revision: 18612
This commit is contained in:
Carsten Haitzler 2005-11-23 10:43:54 +00:00
parent d7aa8d7dc9
commit 4ae5471199
3 changed files with 475 additions and 13 deletions

View File

@ -14,6 +14,20 @@ struct _Evas_List_Accounting
static int _evas_list_alloc_error = 0;
static Evas_Mempool _evas_list_mempool =
{
sizeof(Evas_List),
(4096 - (34 * sizeof(int)) - (sizeof(void *) * 2)) / sizeof(Evas_List),
// 32,
0, NULL
};
static Evas_Mempool _evas_list_accounting_mempool =
{
sizeof(Evas_List_Accounting),
32,
0, NULL
};
/**
* @defgroup Evas_List_Data_Group Linked List Creation Functions
*
@ -52,7 +66,7 @@ evas_list_append(Evas_List *list, const void *data)
Evas_List *l, *new_l;
_evas_list_alloc_error = 0;
new_l = malloc(sizeof(Evas_List));
new_l = evas_mempool_malloc(&_evas_list_mempool, sizeof(Evas_List));
if (!new_l)
{
_evas_list_alloc_error = 1;
@ -63,11 +77,11 @@ evas_list_append(Evas_List *list, const void *data)
if (!list)
{
new_l->prev = NULL;
new_l->accounting = malloc(sizeof(Evas_List_Accounting));
new_l->accounting = evas_mempool_malloc(&_evas_list_accounting_mempool, sizeof(Evas_List_Accounting));
if (!new_l->accounting)
{
_evas_list_alloc_error = 1;
free(new_l);
evas_mempool_free(&_evas_list_mempool, new_l);
return list;
}
((Evas_List_Accounting *)(new_l->accounting))->last = new_l;
@ -115,7 +129,7 @@ evas_list_prepend(Evas_List *list, const void *data)
Evas_List *new_l;
_evas_list_alloc_error = 0;
new_l = malloc(sizeof(Evas_List));
new_l = evas_mempool_malloc(&_evas_list_mempool, sizeof(Evas_List));
if (!new_l)
{
_evas_list_alloc_error = 1;
@ -126,11 +140,11 @@ evas_list_prepend(Evas_List *list, const void *data)
if (!list)
{
new_l->next = NULL;
new_l->accounting = malloc(sizeof(Evas_List_Accounting));
new_l->accounting = evas_mempool_malloc(&_evas_list_accounting_mempool, sizeof(Evas_List_Accounting));
if (!new_l->accounting)
{
_evas_list_alloc_error = 1;
free(new_l);
evas_mempool_free(&_evas_list_mempool, new_l);
return list;
}
((Evas_List_Accounting *)(new_l->accounting))->last = new_l;
@ -193,7 +207,7 @@ evas_list_append_relative(Evas_List *list, const void *data, const void *relativ
{
Evas_List *new_l;
new_l = malloc(sizeof(Evas_List));
new_l = evas_mempool_malloc(&_evas_list_mempool, sizeof(Evas_List));
if (!new_l)
{
_evas_list_alloc_error = 1;
@ -276,7 +290,7 @@ evas_list_prepend_relative(Evas_List *list, const void *data, const void *relati
{
Evas_List *new_l;
new_l = malloc(sizeof(Evas_List));
new_l = evas_mempool_malloc(&_evas_list_mempool, sizeof(Evas_List));
if (!new_l)
{
_evas_list_alloc_error = 1;
@ -375,8 +389,8 @@ evas_list_remove_list(Evas_List *list, Evas_List *remove_list)
((Evas_List_Accounting *)(list->accounting))->last = remove_list->prev;
((Evas_List_Accounting *)(list->accounting))->count--;
if (((Evas_List_Accounting *)(list->accounting))->count == 0)
free(list->accounting);
free(remove_list);
evas_mempool_free(&_evas_list_accounting_mempool, list->accounting);
evas_mempool_free(&_evas_list_mempool, remove_list);
return return_l;
}
@ -478,12 +492,12 @@ evas_list_free(Evas_List *list)
Evas_List *l, *free_l;
if (!list) return NULL;
free(list->accounting);
evas_mempool_free(&_evas_list_accounting_mempool, list->accounting);
for (l = list; l;)
{
free_l = l;
l = l->next;
free(free_l);
evas_mempool_free(&_evas_list_mempool, free_l);
}
return NULL;
}
@ -892,7 +906,7 @@ evas_list_sort(Evas_List *list, int size, int (*func)(void *, void *))
ll->prev->next = NULL;
ll->prev = NULL;
}
ll->accounting = malloc(sizeof(Evas_List_Accounting));
ll->accounting = evas_mempool_malloc(&_evas_list_accounting_mempool, sizeof(Evas_List_Accounting));
((Evas_List_Accounting *)(ll->accounting))->last = llast;
((Evas_List_Accounting *)(ll->accounting))->count = size - mid;

View File

@ -618,6 +618,20 @@ struct _Evas_Imaging_Font
RGBA_Font *font;
};
typedef struct _Evas_Mempool Evas_Mempool;
struct _Evas_Mempool
{
int item_size;
int pool_size;
int usage;
void *first;
};
void *evas_mempool_malloc(Evas_Mempool *pool, int size);
void evas_mempool_free(Evas_Mempool *pool, void *ptr);
void *evas_mempool_calloc(Evas_Mempool *pool, int size);
#ifdef __cplusplus
}
#endif

View File

@ -207,3 +207,437 @@ evas_debug_magic_string_get(DATA32 magic)
};
return "<UNKNOWN>";
}
typedef struct _Evas_Mempool1 Evas_Mempool1;
typedef struct _Evas_Mempool2 Evas_Mempool2;
typedef unsigned int Evas_Mempool_Bitmask;
struct _Evas_Mempool1 /* used if pool size <= 32 */
{
Evas_Mempool_Bitmask allocated;
Evas_Mempool1 *next;
unsigned char *mem;
};
struct _Evas_Mempool2 /* used if pool size > 32 */
{
Evas_Mempool_Bitmask allocated, filled;
Evas_Mempool_Bitmask allocated_list[32];
Evas_Mempool2 *next;
unsigned char *mem;
};
static Evas_Mempool1 *
_evas_mempoool1_new(Evas_Mempool *pool)
{
Evas_Mempool1 *mp;
if (pool->pool_size <= 32)
mp = malloc(sizeof(Evas_Mempool1) + (pool->item_size * pool->pool_size));
else
mp = malloc(sizeof(Evas_Mempool1) + (pool->item_size * 32));
mp->allocated = 0;
mp->next = NULL;
mp->mem = (unsigned char *)mp + sizeof(Evas_Mempool1);
return mp;
}
static void
_evas_mempool1_free(Evas_Mempool1 *mp)
{
free(mp);
}
static Evas_Mempool1 *
_evas_mempool1_free_find(Evas_Mempool *pool, int *slot, Evas_Mempool1 **pmp)
{
Evas_Mempool1 *mp;
int i, psize;
Evas_Mempool_Bitmask allocated;
psize = pool->pool_size;
if (psize > 32) psize = 32;
for (mp = (Evas_Mempool1 *)pool->first; mp; mp = mp->next)
{
allocated = mp->allocated;
if (allocated != 0xffffffff)
{
for (i = 0; i < psize; i++)
{
if ((allocated & (1 << i)) == 0)
{
*slot = i;
return mp;
}
}
}
*pmp = mp;
if (!mp->next) mp->next = _evas_mempoool1_new(pool);
}
return NULL;
}
static Evas_Mempool1 *
_evas_mempool1_pointer_find(Evas_Mempool *pool, int *slot, Evas_Mempool1 **pmp, unsigned char *ptr)
{
Evas_Mempool1 *mp;
int i, psize, isize;
unsigned char *mem;
psize = pool->pool_size;
if (psize > 32) psize = 32;
isize = pool->item_size;
for (mp = (Evas_Mempool1 *)pool->first; mp; mp = mp->next)
{
mem = mp->mem;
if (ptr >= mem)
{
i = (ptr - mem) / isize;
if (i < psize)
{
*slot = i;
return mp;
}
}
*pmp = mp;
}
return NULL;
}
static void
_evas_mempool1_slot_set(Evas_Mempool1 *mp, int slot)
{
mp->allocated |= (1 << slot);
}
static void
_evas_mempool1_slot_unset(Evas_Mempool1 *mp, int slot)
{
mp->allocated &= ~(1 << slot);
}
/*
static void
_evas_mempool1_debug(Evas_Mempool *pool)
{
Evas_Mempool1 *mp;
int psize, isize, i, j, bits, space, allocated, nodes;
psize = pool->pool_size;
if (psize > 32) psize = 32;
isize = pool->item_size;
nodes = allocated = space = 0;
for (i = 0, mp = (Evas_Mempool1 *)pool->first; mp; mp = mp->next, i++)
{
bits = 0;
for (j = 0; j < 32; j++)
{
if ((mp->allocated & (1 << j)) != 0) bits++;
}
allocated += bits * isize;
space += psize * isize;
nodes++;
// printf("pool %i, alloc %08x, full %i/%i\n",
// i, mp->allocated, bits, 32);
}
printf("pool[0-32] %p usage (%i @ %i, %i nodes) %3.1f%%\n",
pool, pool->usage, psize, nodes,
100.0 * (double)allocated / (double)space);
}
*/
static Evas_Mempool2 *
_evas_mempoool2_new(Evas_Mempool *pool)
{
Evas_Mempool2 *mp;
if (pool->pool_size <= 1024)
mp = malloc(sizeof(Evas_Mempool2) + (pool->item_size * pool->pool_size));
else
mp = malloc(sizeof(Evas_Mempool2) + (pool->item_size * 1024));
mp->allocated = 0;
mp->filled = 0;
memset(mp->allocated_list, 0, sizeof(int) * 32);
mp->next = NULL;
mp->mem = (unsigned char *)mp + sizeof(Evas_Mempool2);
return mp;
}
static void
_evas_mempool2_free(Evas_Mempool2 *mp)
{
free(mp);
}
static Evas_Mempool2 *
_evas_mempool2_free_find(Evas_Mempool *pool, int *slot, Evas_Mempool2 **pmp)
{
Evas_Mempool2 *mp;
int i, j, psize, ps, bsize;
Evas_Mempool_Bitmask allocated, filled;
psize = pool->pool_size;
if (psize > 1024) psize = 1024;
bsize = (psize + 31) / 32;
for (mp = (Evas_Mempool2 *)pool->first; mp; mp = mp->next)
{
filled = mp->filled;
if (filled != 0xffffffff)
{
for (j = 0; j < bsize; j++)
{
if ((filled & (1 << j)) == 0)
{
if (j == bsize - 1)
ps = psize - (j * 32);
else
ps = 32;
allocated = mp->allocated_list[j];
for (i = 0; i < ps; i++)
{
if ((allocated & (1 << i)) == 0)
{
*slot = (j * 32) + i;
return mp;
}
}
}
}
}
*pmp = mp;
if (!mp->next) mp->next = _evas_mempoool2_new(pool);
}
return NULL;
}
static Evas_Mempool2 *
_evas_mempool2_pointer_find(Evas_Mempool *pool, int *slot, Evas_Mempool2 **pmp, unsigned char *ptr)
{
Evas_Mempool2 *mp;
int i, psize, isize;
unsigned char *mem;
psize = pool->pool_size;
if (psize > 1024) psize = 1024;
isize = pool->item_size;
for (mp = (Evas_Mempool2 *)pool->first; mp; mp = mp->next)
{
mem = mp->mem;
if (ptr >= mem)
{
i = (ptr - mem) / isize;
if (i < psize)
{
*slot = i;
return mp;
}
}
*pmp = mp;
}
return NULL;
}
static void
_evas_mempool2_slot_set(Evas_Mempool2 *mp, int slot)
{
int bucket;
bucket = slot / 32;
mp->allocated_list[bucket] |= (1 << (slot - (bucket * 32)));
mp->allocated |= (1 << bucket);
if (mp->allocated_list[bucket] == 0xffffffff)
mp->filled |= (1 << bucket);
}
static void
_evas_mempool2_slot_unset(Evas_Mempool2 *mp, int slot)
{
int bucket;
bucket = slot / 32;
mp->allocated_list[bucket] &= ~(1 << (slot - (bucket * 32)));
mp->filled &= ~(1 << bucket);
if (mp->allocated_list[bucket] == 0)
mp->allocated &= ~(1 << bucket);
}
/*
static void
_evas_mempool2_debug(Evas_Mempool *pool)
{
Evas_Mempool2 *mp;
int psize, bsize, isize, i, j, ps, bits, allocated, space, nodes;
psize = pool->pool_size;
if (psize > 1024) psize = 1024;
bsize = (psize + 31) / 32;
isize = pool->item_size;
nodes = allocated = space = 0;
for (i = 0, mp = (Evas_Mempool2 *)pool->first; mp; mp = mp->next, i++)
{
for (i = 0; i < bsize; i++)
{
bits = 0;
if (i == bsize - 1)
ps = psize - (i * 32);
else
ps = 32;
for (j = 0; j < ps; j++)
{
if ((mp->allocated_list[i] & (1 << j)) != 0) bits++;
}
// printf("pool %i, alloc %08x, full %i/%i\n",
// i, mp->allocated, bits, 32);
allocated += bits * isize;
}
space += psize * isize;
nodes++;
}
printf("pool[32-1024] %p usage (%i @ %i, %i nodes) %3.1f%%\n",
pool, pool->usage, psize, nodes,
100.0 * (double)allocated / (double)space);
}
*/
/*#define NOPOOL 1*/
void *
evas_mempool_malloc(Evas_Mempool *pool, int size)
#ifdef NOPOOL
{
return malloc(size);
}
#else
{
if (pool->pool_size <= 32)
{
Evas_Mempool1 *mp, *pmp = NULL;
int freeslot;
mp = pool->first;
if (!mp)
{
mp = _evas_mempoool1_new(pool);
pool->first = mp;
freeslot = 0;
}
else mp = _evas_mempool1_free_find(pool, &freeslot, &pmp);
if (!mp) return NULL;
pool->usage++;
_evas_mempool1_slot_set(mp, freeslot);
if (mp->allocated == 0xffffffff)
{
if (mp->next)
{
if (pool->first == mp) pool->first = mp->next;
else pmp->next = mp;
mp->next = NULL;
}
}
/* _evas_mempool1_debug(pool);*/
return mp->mem + (freeslot * pool->item_size);
}
else
{
Evas_Mempool2 *mp, *pmp = NULL;
int freeslot;
mp = pool->first;
if (!mp)
{
mp = _evas_mempoool2_new(pool);
pool->first = mp;
freeslot = 0;
}
else mp = _evas_mempool2_free_find(pool, &freeslot, &pmp);
if (!mp) return NULL;
pool->usage++;
_evas_mempool2_slot_set(mp, freeslot);
if (mp->allocated == 0xffffffff)
{
if (mp->next)
{
if (pool->first == mp) pool->first = mp->next;
else pmp->next = mp;
mp->next = NULL;
}
}
/* _evas_mempool2_debug(pool);*/
return mp->mem + (freeslot * pool->item_size);
}
}
#endif
void
evas_mempool_free(Evas_Mempool *pool, void *ptr)
#ifdef NOPOOL
{
free(ptr);
}
#else
{
if (pool->pool_size <= 32)
{
Evas_Mempool1 *mp, *pmp = NULL;
int allocslot;
mp = _evas_mempool1_pointer_find(pool, &allocslot, &pmp, (unsigned char*)ptr);
if (!mp) return;
_evas_mempool1_slot_unset(mp, allocslot);
if (mp->allocated == 0)
{
if (pool->first == mp) pool->first = mp->next;
else pmp->next = mp->next;
_evas_mempool1_free(mp);
}
else
{
if (pool->first != mp)
{
pmp->next = mp->next;
mp->next = pool->first;
pool->first = mp;
}
}
pool->usage--;
}
else
{
Evas_Mempool2 *mp, *pmp = NULL;
int allocslot;
mp = _evas_mempool2_pointer_find(pool, &allocslot, &pmp, (unsigned char*)ptr);
if (!mp) return;
_evas_mempool2_slot_unset(mp, allocslot);
if (mp->allocated == 0)
{
if (pool->first == mp) pool->first = mp->next;
else pmp->next = mp->next;
_evas_mempool2_free(mp);
}
else
{
if (pool->first != mp)
{
pmp->next = mp->next;
mp->next = pool->first;
pool->first = mp;
}
}
pool->usage--;
}
}
#endif
void *
evas_mempool_calloc(Evas_Mempool *pool, int size)
{
void *mem;
mem = evas_mempool_malloc(pool, size);
memset(mem, 0, size);
return mem;
}