Trinitycore several hours Lagg,Spikes

Hello, after running the server for several hours, it starts lagging. First with short spikes then they it starts giving longer delays. A restart helps it, so I guess a new cycle starts after it gets restarted. Does anybody have suggestions what could the cause be? Thanks in advance

hello,

Give some specs with the machine, linix or windows, processeur, ram , core version etc…, it will help