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100% CPU usage with no process using that much CPU.

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tomf
Posts: 1
Joined: 2021-10-22 21:09

100% CPU usage with no process using that much CPU.

#1 Post by tomf »

For the past few weeks now, my server (on baremetal, debian 10 kerenl version 5.10.0-9-amd64) has been sitting at 100% CPU usage, but when looking at [h]top there are no obvious culprits. And yes, I have shown kernel threads in htop.

Below are some screenshots of the system

Image
Image

I notice that in top it says that the only CPU usage I have is niced processes, although I am not too sure where this is meant to lead me.

Any suggestion on how I can solve this or where I can start looking would be great :)

Jose.Yohn
Posts: 2
Joined: 2021-10-22 20:59

Re: 100% CPU usage with no process using that much CPU.

#2 Post by Jose.Yohn »

Hello,

Try running an iostat -D to check out the disk random access. I don't see if is user time. To ensure is not a disk related issue.

Check what avg service time you have.

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