I set the "set Max idle instances" to 1 since I don't really need more than that most of the time, the 5-8 instances that I had were idle almost all day serving few requests.

我把“设置最大空闲实例数”设定为1，因为大多数时候我不需要那么多实例，过去我拥有的5到8个实例几乎总处于空闲，因为服务的请求很少。

youdao

When it is set to 1, the scheduler tries to schedule processes to as few hyperthreads on a core as possible so that the others can go idle and in turn save power through idle C states.

在设置为 1 时，调度器尝试在核上尽可能少的超线程上调度进程，让其他超线程可以空闲，进而通过空闲 C 状态节省电力。

youdao

In fact, with most of these technologies, the execution of the software may occur on a set of processors, but when the other processors are idle, it will execute instructions there as well.

实际上，对于其中大多数技术，软件的执行可以发生在一组处理器上，但是当其他处理器闲置时，它将也在那里执行指令。

youdao