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wip: delayed decommit on segments

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This commit is contained in:
daan 2019-11-21 19:53:43 -08:00
parent 1066be1594
commit 321e18777e
5 changed files with 103 additions and 31 deletions
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13
src/arena.c
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@ -188,7 +188,7 @@ static void* mi_cache_pop(int numa_node, size_t size, size_t alignment, bool* co
return NULL;
}
static bool mi_cache_push(void* start, size_t size, size_t memid, bool is_committed, bool is_large) {
static bool mi_cache_push(void* start, size_t size, size_t memid, bool is_committed, bool is_large, mi_os_tld_t* tld) {
// only for segment blocks
if (size != MI_SEGMENT_SIZE || ((uintptr_t)start % MI_SEGMENT_ALIGN) != 0) return false;
@ -202,8 +202,9 @@ static bool mi_cache_push(void* start, size_t size, size_t memid, bool is_commit
if (p == NULL) { // free slot
if (mi_atomic_cas_ptr_weak(&slot->p, MI_SLOT_IN_USE, NULL)) {
// claimed!
slot->memid = memid;
// _mi_os_decommit(start, size, tld->stats);
slot->is_committed = is_committed;
slot->memid = memid;
slot->is_large = is_large;
mi_atomic_write_ptr(&slot->p, start); // and make it available;
return true;
@ -317,15 +318,15 @@ void* _mi_arena_alloc(size_t size, bool* commit, bool* large, bool* is_zero, siz
Arena free
----------------------------------------------------------- */
void _mi_arena_free(void* p, size_t size, size_t memid, bool is_committed, bool is_large, mi_stats_t* stats) {
mi_assert_internal(size > 0 && stats != NULL);
void _mi_arena_free(void* p, size_t size, size_t memid, bool is_committed, bool is_large, mi_os_tld_t* tld) {
mi_assert_internal(size > 0 && tld->stats != NULL);
if (p==NULL) return;
if (size==0) return;
if (memid == MI_MEMID_OS) {
// was a direct OS allocation, pass through
if (!mi_cache_push(p, size, memid, is_committed, is_large)) {
_mi_os_free(p, size, stats);
if (!mi_cache_push(p, size, memid, is_committed, is_large, tld)) {
_mi_os_free(p, size, tld->stats);
}
}
else {