High cpu on 2100 after upgrade to RC from Beta
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Hi,
Using Netgate 2100 (8gig emmc), installed RC from Beta.
Found ongoing high cpu usage (4.23, 2.84, 2.37).
Under system activity looks to be switching between high usage of unbound & sed journaling. Unbound/Sed journal can go over 80%.
Only notable package installed pfblockerNG, no tailscale.
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Does this eventually stop, or does it get stuck?
Would you generate diagnostic data while it's happening, and upload it here?
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@marcosm I can add those but you can try to replicate this now. Found it is from options in KEA dhcp.
- I re-installed RC from 24.03 and issue continues.
- Found that I am using dns resolver & chose options 'Enable DNS registration' and 'Enable early DNS registration' from DHCP server.
- CPU usage greatly increases as described.
- Disable options from 2. & restart dhcp and cpu usage drops to ~30%. Note that my cpu usage before RC was ~10% nominally and I was using KEA dhcp in 24.03.
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Yes, that's where it comes from and some CPU usage is normal. The screenshot shows it's been running for longer than expected however - hence the follow up questions.
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@marcosm said in High cpu on 2100 after upgrade to RC from Beta:
Does this eventually stop, or does it get stuck?
The answer here is important thanks
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@cmcdonald @marcosm It doesn't get stuck and it doesn't stop. It rotates between sed journal activity building up over 80% dropping off. Then Kea will push cpu to high level. It repeats this scenario as long as you let it. Not seeing failures anywhere. Can you replicate this?
