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reduce page search to 8

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daanx 2024-10-09 15:05:35 -07:00
parent cbc0e19809
commit 0316cb1d88
2 changed files with 6 additions and 6 deletions
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6
src/page-queue.c
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@ -333,9 +333,9 @@ static void mi_page_queue_enqueue_from(mi_page_queue_t* to, mi_page_queue_t* fro
mi_page_queue_enqueue_from_ex(to, from, true, page); mi_page_queue_enqueue_from_ex(to, from, true, page);
} }
static void mi_page_queue_enqueue_from_at_start(mi_page_queue_t* to, mi_page_queue_t* from, mi_page_t* page) { // static void mi_page_queue_enqueue_from_at_start(mi_page_queue_t* to, mi_page_queue_t* from, mi_page_t* page) {
mi_page_queue_enqueue_from_ex(to, from, false, page); // mi_page_queue_enqueue_from_ex(to, from, false, page);
} // }
// Only called from `mi_heap_absorb`. // Only called from `mi_heap_absorb`.
size_t _mi_page_queue_append(mi_heap_t* heap, mi_page_queue_t* pq, mi_page_queue_t* append) { size_t _mi_page_queue_append(mi_heap_t* heap, mi_page_queue_t* pq, mi_page_queue_t* append) {

6
src/page.c
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@ -358,7 +358,7 @@ void _mi_page_unfull(mi_page_t* page) {
mi_page_queue_t* pq = mi_heap_page_queue_of(heap, page); mi_page_queue_t* pq = mi_heap_page_queue_of(heap, page);
mi_page_set_in_full(page, true); mi_page_set_in_full(page, true);
mi_page_queue_enqueue_from(pq, pqfull, page); mi_page_queue_enqueue_from(pq, pqfull, page);
// we may instead insert at the front to increase reuse but it slows down some benchmarks like `alloc-test1` // we could insert at the front to increase reuse, but it slows down certain benchmarks (like alloc-test)
// mi_page_queue_enqueue_from_at_start(pq, pqfull, page); // mi_page_queue_enqueue_from_at_start(pq, pqfull, page);
} }
@ -718,7 +718,7 @@ static void mi_page_init(mi_heap_t* heap, mi_page_t* page, size_t block_size, mi
-------------------------------------------------------------*/ -------------------------------------------------------------*/
// search for a best next page to use for at most N pages (often cut short if immediate blocks are available) // search for a best next page to use for at most N pages (often cut short if immediate blocks are available)
#define MI_MAX_CANDIDATE_SEARCH (16) #define MI_MAX_CANDIDATE_SEARCH (8)
// is the page not yet used up to its reserved space? // is the page not yet used up to its reserved space?
static bool mi_page_is_expandable(const mi_page_t* page) { static bool mi_page_is_expandable(const mi_page_t* page) {
@ -768,7 +768,7 @@ static mi_page_t* mi_page_queue_find_free_ex(mi_heap_t* heap, mi_page_queue_t* p
page_candidate = page; page_candidate = page;
candidate_count = 0; candidate_count = 0;
} }
else if (!mi_page_is_expandable(page) && page->used > page_candidate->used) { else if (!mi_page_is_expandable(page) && page->capacity < page_candidate->capacity) {
page_candidate = page; page_candidate = page;
} }
// if we find a non-expandable candidate, or searched for N pages, return with the best candidate // if we find a non-expandable candidate, or searched for N pages, return with the best candidate