>>256
2012/09/10 16:40:00 LA= 4:40PM up 6:13, 0 users, load averages: 0.03, 0.05, 0.03
2012/09/10 16:50:00 LA= 4:50PM up 6:23, 1 user, load averages: 0.03, 0.04, 0.02
2012/09/10 17:00:00 LA= 5:00PM up 6:33, 1 user, load averages: 0.15, 0.10, 0.04
2012/09/10 17:10:00 LA= 5:10PM up 6:43, 0 users, load averages: 0.24, 0.12, 0.07

そのへんの時間帯かなぁ