Server CPU randomly spiking to around 500%

Every hour or so, my ubuntu server CPU spikes to around 500% How is this possible? Am I being charged more for this? Is this a bug or something that usually occurs that I’m not aware of?

Thanks for the help


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Sorry to see that your question hasn’t received an answer yet. Unfortunately, after this much time, it is unlikely that an answer for this specific question will be provided. For people still landing here via search, you can use htop to find out which program is using up the CPU- see

High CPU usage spikes do not incur any extra charges. Consider setting up a monitoring alert so you are notified whenever CPU usage is high: