Dynamic v On-demand Good write up here. I’d use on-demand for low priority and/or low traffic sites, especially if you’re running a mix of sites on the same box. On-demand: As mentioned: pm = ondemand pm.max_children = 5 pm.process_idle_timeout = 10s pm.max_requests = 200 Set pm.max_children pretty low for your low priority sites, if it’s ..