Systemd CPU usage increase after OA install

[Mizső]

Hi Folks,

Have you ever observed systemd cpu usage increase after OA install?

I have already raised a support ticket but maybe you had experience on it.

Environement: RHEL 7.9 with IBM Integration Bus.

After OA install systemd cpu consumption from AVG 0,1 % increase to AVG 10% (fluctuate between 0-30%).

Could you please advice? Which OA featrue should be switched off? 😉

Thanks in advance for your advices.

Best regards,

Mizső 

[Julius_Loman]

Systemd is a native app, Dynatrace does not inject and does not make any modifications.
Do you see this in processes in Dynatrace or on the host using top / htop tools? Which of the systemd processes?

Does the customer have Nettracer or eBPF Service Discovery features enabled? 

[Mizső]

Hi Julius,

I can see the systemd process on the host view at the process section. 

Nettracer is not enabled, but eBPF Service Discovery feature is enabled.

Br, János

[Julius_Loman]

Ah, ok - maybe some other process falls into the the systemd group?
Can you run a process instance snapshot to confirm? Or collect a support archive and check the processesSnapshot.json for details of CPU consumption.

[Mizső]

Hi Julius,

Thanks for the tips. I am gonig to check these ones at the client tomorrow. 😉

Best regards,

János

[Peter_Youssef]

Hi @Mizső 

For Oneagent service to take effect, a pending process restart would be the reason for the CPU usage spikes.

Regards,

peter.

[Mizső]

Hi @Peter_Youssef 

Thanks for the tip. I will check it.

Best regards,

Mizső