What is the limit of the number of accesses per second that a single PHP process processes

What is the limit of the number of accesses per second that a single PHP process processes
What is the limit of the number of accesses per second that a single PHP process can handle? What is the amount of memory that a single PHP process consumes, how to configure PHP-FPM based on the size of the host's memory, and open the appropriate size of the work process?

is the local view PHP process only occupy 1M (no processing access), other articles say a PHP process will occupy 20-40m, excuse me why?

------to solve the idea----------------------
PHP-FPM, 20-40m when requested.
When a new request comes in, it first looks at whether the process pool has an idle PHP-FPM process (which may be more than 1m at idle), and does not create a new one (depending on the pm.max_children to set the maximum number of processes to create), and each process uses the Pm.max_ After the number of requests is set, it will be closed and released.
------to solve the idea----------------------
A request will be processed by a PHP process. The run time of the process is related to the PHP file code being executed.
The processing will be released if your program requires more than 1 seconds for each request to complete.
So, you set the maximum process number 100, that is, only 100 concurrent.

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