Is this the correct process? To determine how much RAM/CPU to provide for a VM web server, calculate the average RES value in "top" for httpd processes. Then calculate the average RES value for php-fpm processes. Then add those 2 values together. Then multiply by the max number of concurrent connections you want to be able to handle.
Example: 12000 kb 6640 kb ------------ 18.640 mb X 512 MaxRequestWorkers ---------------- ~9.6 gb (How much RAM needed to run apache/PHP-FPM. So would add 2 GB for running system) Then add the average CPU% in "top" for httpd processes + average CPU% for php-fpm and multiply by 512 MaxRequestWorkers. Example: Httpd average cpu 4% Php-fpm average cpu 2% .06 x 512 = 30.72 cores The RAM looks reasonable. But the cpu value is much higher than I expected. Corrections? Constructive comments? Thanks