I've got configured apache2 and php7.2-fpm. Machine has 32 vCPUs and 192G ram. FPM is set to static mode with 1200 pm.max_children. When 400 fpm process are started the platform is slow and load average on system peak up to 230 and meanwhile CPU max is 40%. I think that something is not configured correctly
EDIT: After I made the following changes: pm.max_children = 64 the platform is handling better(~40% load average constantly and ~40%CPU usage) but with 2500 users in GA it's slowing down. I still think that there is config issue. Apache rate of request show this: Apache requests
While fpm shown such graphic: FPM requests
What do you think could be the issue?