Statistics: time cost statistics and traffic statistics.
数据统计：链接、读取时长统计，以及流量统计。
The hotel administration system takes the hotel administration plans and control as its core, which provides such practical functions as hotel reservations, check in, cost statistics, etc.
旅馆管理系统以旅馆管理计划和控制职能为核心，提供了旅客预定房间、旅客登记、费用统计等实用性管理功能。
In my opinion, you should always gather statistics for these types of metrics, being they cost you nothing.
在我看来，你应该经常收集这类统计数据，它们对你来说不会有什么损耗。
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