pmap_resident_count
pmap_resident_count(vm->vm_pmap) * PAGE_SIZE;
log2(pmap_resident_count(p->p_vmspace->vm_map.pmap));
#define vm_resident_count(vm) (pmap_resident_count((vm)->vm_map.pmap))
res = pmap_resident_count(map->pmap);
pmap_resident_count(map->pmap));