开始对系统进行监视的最佳时间是当您首次将系统应用到生产环境中并且正常运行时，而不是等到用户抱怨系统的性能非常糟糕的时候。
The best time to start monitoring your systems is when you have first put your system in production and it is running well, rather than waiting until your users are screaming about slow performance.
开始对系统进行监视的最佳时间是当您首次将系统应用到产品环境中并且正常运行时，而不是等到用户抱怨系统的性能非常糟糕的时候。
The best time to start monitoring your systems is when you have first put your system in production and it is running well, rather than when your users are screaming about slow performance.
正常运行时间开始下降会降低到服务水平协议(SLA)上所规定的保证水平之下。
Uptime availability begins to slide down from the guaranteed level set forth in a service level agreement (SLA).
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