如果此每15分钟活动用户的成本保持平坦，但总的cpu时间线上升(或下降)，我们就可以断定，这是一个与工作负载或容量相关的问题。
If this cost per active 15-minute user stays flat, but the total CPU line goes up (or down), we can conclude that this is a workload or a capacity related issue.
互联网及其相关技术使得某些交互活动和交易活动的成本迅速下降。
The Internet and related technologies have caused the cost of communication and transactions to plummet .
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