You find all the details in the [full documentation](https://devops-tools.docs.lakedrops.com/ansible/roles/apache/).
Run `ps_mem.py` on you host and collect the values for apache and php-fpm processes.
The, download the [apache_performance.xlsx](apache_performance.xlsx) spreadsheet, fill in the orange fields for your specific server and configure the green calculated values into the Ansible inventory for your host: