with sufficient threads, split baking threads into two groups: small # of threads to do expensive 'background' baking tasks, use the rest to do wide predictable baking stuff

src/os/core/win32/os_core_win32.c

@@ -1355,7 +1355,7 @@ internal Barrier
 os_barrier_alloc(U64 count)
 {
   OS_W32_Entity *entity = os_w32_entity_alloc(OS_W32_EntityKind_Barrier);
-  InitializeSynchronizationBarrier(&entity->sb, count, -1);
+  BOOL init_good = InitializeSynchronizationBarrier(&entity->sb, count, -1);
   Barrier result = {IntFromPtr(entity)};
   return result;
 }