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How do I troubleshoot VPS lag, high CPU, or high IO?

VPS lag is not always caused by a host node fault. It may also be caused by processes inside the system consuming too many resources.

Checks to perform first​

After logging in to the server, run:

top
htop
iotop

Check which processes are using the most CPU, memory, or IO.

If SSH is unavailable​

You can reboot from the control panel first, then log in as soon as possible and check:

  • Recently started services.
  • System logs.
  • Processes using the most resources.
  • Whether the disk is full.

When submitting a ticket, please provide screenshots of resource usage and the time when the issue occurred.