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mirror of https://sourceware.org/git/glibc.git synced 2025-08-08 17:42:12 +03:00

Enable THP on arenas

This commit is contained in:
Wilco Dijkstra
2025-07-30 15:04:35 +00:00
parent 09604542d3
commit 77d3e73936

View File

@@ -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;