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respect large pages for arena allocation

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daan 2019-10-31 10:59:40 -07:00
parent 28cb19148c
commit ed4f60fc7e
1 changed files with 17 additions and 15 deletions
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32
src/arena.c
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@ -232,21 +232,23 @@ void* _mi_arena_alloc_aligned(size_t size, size_t alignment, bool* commit, bool*
for (size_t i = 0; i < MI_MAX_ARENAS; i++) {
mi_arena_t* arena = (mi_arena_t*)mi_atomic_read_ptr_relaxed(mi_atomic_cast(void*, &mi_arenas[i]));
if (arena==NULL) break;
size_t block_index = SIZE_MAX;
void* p = mi_arena_alloc(arena, bcount, is_zero, &block_index);
if (p != NULL) {
mi_assert_internal(block_index != SIZE_MAX);
#if MI_DEBUG>=1
_Atomic(mi_block_info_t)* block = &arena->blocks[block_index];
mi_block_info_t binfo = mi_atomic_read(block);
mi_assert_internal(mi_block_is_in_use(binfo));
mi_assert_internal(mi_block_count(binfo)*MI_ARENA_BLOCK_SIZE >= size);
#endif
*memid = mi_memid_create(i, block_index);
*commit = true; // TODO: support commit on demand?
*large = arena->is_large;
mi_assert_internal((uintptr_t)p % alignment == 0);
return p;
if (*large || !arena->is_large) { // large OS pages allowed, or arena is not large OS pages
size_t block_index = SIZE_MAX;
void* p = mi_arena_alloc(arena, bcount, is_zero, &block_index);
if (p != NULL) {
mi_assert_internal(block_index != SIZE_MAX);
#if MI_DEBUG>=1
_Atomic(mi_block_info_t)* block = &arena->blocks[block_index];
mi_block_info_t binfo = mi_atomic_read(block);
mi_assert_internal(mi_block_is_in_use(binfo));
mi_assert_internal(mi_block_count(binfo)*MI_ARENA_BLOCK_SIZE >= size);
#endif
* memid = mi_memid_create(i, block_index);
*commit = true; // TODO: support commit on demand?
*large = arena->is_large;
mi_assert_internal((uintptr_t)p % alignment == 0);
return p;
}
}
}
}