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| author | Wilco Dijkstra <wilco.dijkstra@arm.com> | 2025-07-30 15:04:35 +0000 |
|---|---|---|
| committer | Wilco Dijkstra <wilco.dijkstra@arm.com> | 2025-08-04 17:13:55 +0000 |
| commit | 77d3e739360ebb49bae6ecfd4181e4e1692f6362 (patch) | |
| tree | c5516342da5f0367418b2ecc0fde34312bb30688 | |
| parent | 09604542d31abf1e35cd00c1db8d9bee9568bdd0 (diff) | |
| download | glibc-77d3e739360ebb49bae6ecfd4181e4e1692f6362.zip glibc-77d3e739360ebb49bae6ecfd4181e4e1692f6362.tar.gz glibc-77d3e739360ebb49bae6ecfd4181e4e1692f6362.tar.bz2 | |
Enable THP on arenas
| -rw-r--r-- | malloc/arena.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/malloc/arena.c b/malloc/arena.c index 90c526f..91a4f36 100644 --- a/malloc/arena.c +++ b/malloc/arena.c @@ -444,10 +444,13 @@ alloc_new_heap (size_t size, size_t top_pad, size_t pagesize, static heap_info * new_heap (size_t size, size_t top_pad) { - if (mp_.hp_pagesize != 0 && mp_.hp_pagesize <= heap_max_size ()) + bool use_hugepage = mp_.hp_pagesize != 0; + size_t pagesize = use_hugepage ? mp_.hp_pagesize : mp_.thp_pagesize; + + if (pagesize != 0 && pagesize <= heap_max_size ()) { - heap_info *h = alloc_new_heap (size, top_pad, mp_.hp_pagesize, - mp_.hp_flags); + heap_info *h = alloc_new_heap (size, top_pad, pagesize, + use_hugepage ? mp_.hp_flags : 0); if (h != NULL) return h; } @@ -479,6 +482,8 @@ grow_heap (heap_info *h, long diff) h->mprotect_size = new_size; } + madvise_thp (h, new_size); + h->size = new_size; LIBC_PROBE (memory_heap_more, 2, h, h->size); return 0; |