页面响应时间记录

要点，所有统计都得基于有 cache 的情况，生产环境。

2015-5-28

/ = 36ms
/topics = 45ms
/topics/19436 = 67ms
/wiki = 26ms
/notifications = 39ms
/huacnlee = 100ms
/huacnlee/topics = 95ms
/huacnlee/favorites = 50ms
/huacnlee/followers = 85ms
/wiki/about = 37ms
/jobs = 68ms
/topics/new = 84ms
/sites = 25ms
/account/edit = 73ms