Forum Discussion
Overload Cpu
- Jan 11, 2024
that could be the issue. definatly something to look at.
i would lean more towards using the top command to find out what is causing the issue.
With ASM - i would further be concerned about spinning disks vs. SSD which will show up as a 'wa' in the top stastics. - Jan 11, 2024
PhatANhappy mentioned about too small resources and that this is control plane utlization not data plane and the ''top'' will review if it is the bug or another process. About the ''wa'' that is something I would also renember from this discussion.
About the Analysis plane this in most cases is the ASM/AWAF policy builder learning, so also better also switch it off The BIG-IP ASM device shows high CPU usage in Analysis plane (f5.com) but this is could be still related to not enough resources for LTM + AWAF.
..... I would stay out of the gui as it tends to run hot and take more resources than its worth.
that is only a dual core unit with a spinning disk drive, so there is not a lot of hardware to work with. Its also EOS - with 3 years left of life, meaning its a migration effort that will need to be repeated in the near future.
from the CLI, - top would be a better tool to work with.
https://my.f5.com/manage/s/article/K32264816
what services are at the top few consuming all the resources?
what is the "load " in top 1 min -5 min
what resourse is consuming the load?
what is the uptime of the device?
how many VIPS / objects do you have in your config?
have you turned up logging? are you useing HSL?
what modules do you have provisioned?
under provisioning - what is the size of the managment module?
if you are attempting to run ASM/AWAF - on the box - that is likely the cause, its far to small hardware wise to run efficently - you might find some relief here: https://community.f5.com/t5/technical-forum/high-cpu-usage-independent-from-traffic/td-p/317138
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