high loading cpu on x86

Everything is fine load about 1-10% until something happens and load jumps to 30-40% and never goes down until reboot of routerOS … and also it doesn’t depend to traffic load even if traffic is low load still 30-40% … how can i solve that …

V3.30 L4 CPU Athlon II x4 all 4 core to Microtik…

yes this happen to me also when i open ppp in the left list.

I don’t use pppoe

i just use simple querys and php engaine to admining it …