I want to deploy my app on Raspberry Pi 4B with… 1 GB, 2 GB, 4 GB or 8 GB RAM.
I don’t need any fancy-dancy stats. I just need a couple of numbers that will let me decide which option is the best in terms performance/price? Or adds some number to the haptic/click-able testing.
RAM usage with PHP app is mainly a matter of parallel requests happen in time unit. Measuring in its basic/trivial form could be the command free -hts 1 in linux console to observe it in real time.
In my real world mid-busy application I use Zabbix software to measure host resources (Intel CPU server) usage together with docker containers measure.