systemd: cpu usage of services

LukeLR Published at Dev

LukeLR

I'm running systemd 229-3 on an up-to-date Arch Linux installation. Lightdm is launched on startup, and starts my XFCE desktop environment. Furthermore, laptop-mode-tools is installed and run on startup.

Sometimes, after logging in, I experience huge reaction times on my system, and I already noticed a couple of times, that systemd with high CPU usage is causing them. How can I figure out, what service is the reason of that high CPU usage? I've already tried to disable laptop-mode.service, but to no avail. There must be a way to see what service is causing trouble here, isn't it?

Shuangistan

If you enabled the cpuacct cgroup subgroup in the kernel. You can try systemd-cgtop to identify which systemd service causes high cpu usage.

Generally top can be used to check the cpu usage by each process.

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edited at2021-03-26

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systemd: cpu usage of services

systemd: cpu usage of services

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