Round robin not power efficient

Via_Patrino writes: While having to distribute load between several servers, round robin, or any other technique which balances load equally, is usually the most common approach because of its simplicity. But a recent study shows that trying to accumulate load on some servers can improve energy efficiency because the other servers will be mostly unused during off-peak periods and then able to make better use of power saving methods. Specially where load involves lots of concurrent power-consuming TCP connections which was the study case when a new load balancing algorithm resulted in an overall 30% power savings.