High CPU or RAM usage can cause lag, slow command responses, failed updates, or game servers being killed by the operating system. Use Linux process tools to find what is using resources.
Open a live process view:
top
If htop is installed, it gives a friendlier view:
htop
Check memory and swap usage:
free -h
List the highest memory processes:
ps aux --sort=-%mem | head
If a game server is using all memory during startup, reduce its settings, remove unused services, or upgrade the VPS plan. If CPU is high only during updates or world generation, wait for the task to finish before changing anything.
