How to set the maximum number of idle processes of apache

Article Title: how to set the maximum number of idle processes of apache. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
When a request is completed, the corresponding service process of apache enters the idle (idel) state. how to set apache to avoid wasting system resources due to a large number of idle processes?
Modify httpd. conf and set it in it:
MaxSpareServers n
N is an integer. In this way, when the number of idle processes exceeds n, the apache master process will kill redundant idle processes and keep the number of idle processes at n, saving system resources. It is necessary to adjust this parameter at a very busy apache site, but it is not a good idea to adjust this parameter at any time.
You can also set the following parameters:
MinSpareServers n
To limit the minimum number of idle processes to speed up the response.