NCPU_LOG2
const int _ncpu_log2 = (int)NCPU_LOG2;
#define AH_LOCK_SIZE (2 << NCPU_LOG2)
((unsigned)(((2*NCPU_P2) > 128) ? NCPU_LOG2 + 1 : 7))
#define PH_SHIFT_SIZE ((NCPU < 4) ? 7 : (NCPU_LOG2 + 1))
#define NCPU_P2 (1 << NCPU_LOG2)
#define SPL_SHIFT ((unsigned)(NCPU_LOG2 + 1))
#define NCPU_P2 (1 << NCPU_LOG2)
#elif (!defined(NCPU_LOG2))
#define NCPU_P2 (1 << NCPU_LOG2)