NUMA_PERIOD_THRESHOLD
if (ps_ratio >= NUMA_PERIOD_THRESHOLD) {
int slot = ps_ratio - NUMA_PERIOD_THRESHOLD;
} else if (lr_ratio >= NUMA_PERIOD_THRESHOLD) {
int slot = lr_ratio - NUMA_PERIOD_THRESHOLD;
diff = -(NUMA_PERIOD_THRESHOLD - ratio) * period_slot;