Use environment: brand new debian11 system. Open ports allow only my IP to connect. Install lnmp environment. Not tied to any website. Aapanel occupies up to 10% to 35% of the CPU. After I use the command bt 2, the CPU usage disappears. lnmp occupies only 0.7%0.3% of the CPU, can you help me explain why it takes up so much? After running the bt 3 startup panel, it will not take up a lot of cpu immediately. It will increase occupancy for the next few hours. After bt 2 stops the aapanel panel, the occupancy disappears. I use five vps with the same configuration. Test for five days. Check every day. All the same problem. The debian system is an official distribution and is very clean. Your one-click install script used by aapanel. The network is only accessible to me.