您需要在系统正常运行的时候建立系统运行状态的基准，以便在可能不正常运行的情况下对数据进行分析。

You really need to have a baseline of what the system looked like when it was behaving normally in order to analyze data when it is presumably not performing adequately.

youdao

需要在系统正常运行的时候建立系统运行状态的基准，以便在系统可能不正常时对数据进行分析。

You really need to have a baseline of what the system looked like when it was behaving normally to analyze data when it is presumably not performing adequately.

youdao