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Use good locks in dlmalloc

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Using mere spin locks causes runitd.com to go painstakingly slow on
NetBSD for reasons that aren't clear yet.
This commit is contained in:
Justine Tunney 2023-12-28 04:55:50 -08:00
parent 80fca1f7c3
commit 1a28e35c62
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GPG key ID: BE714B4575D6E328
2 changed files with 4 additions and 1 deletions
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1
third_party/dlmalloc/dlmalloc.c vendored
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@ -32,6 +32,7 @@
#define HAVE_MREMAP 0 #define HAVE_MREMAP 0
#define HAVE_MORECORE 0 #define HAVE_MORECORE 0
#define USE_LOCKS 2 #define USE_LOCKS 2
#define USE_SPIN_LOCKS 0
#define MORECORE_CONTIGUOUS 0 #define MORECORE_CONTIGUOUS 0
#define MALLOC_INSPECT_ALL 1 #define MALLOC_INSPECT_ALL 1
#define ABORT_ON_ASSERT_FAILURE 0 #define ABORT_ON_ASSERT_FAILURE 0

4
third_party/dlmalloc/locks.inc vendored
View file

@ -29,7 +29,7 @@
*/ */
#ifdef USE_SPIN_LOCKS #if USE_SPIN_LOCKS
#define MLOCK_T atomic_uint #define MLOCK_T atomic_uint
@ -62,11 +62,13 @@ static int malloc_wipe(MLOCK_T *lk) {
} }
static int malloc_lock(MLOCK_T *lk) { static int malloc_lock(MLOCK_T *lk) {
if (!__threaded) return 0;
nsync_mu_lock(lk); nsync_mu_lock(lk);
return 0; return 0;
} }
static int malloc_unlock(MLOCK_T *lk) { static int malloc_unlock(MLOCK_T *lk) {
if (!__threaded) return 0;
nsync_mu_unlock(lk); nsync_mu_unlock(lk);
return 0; return 0;
} }