Hi!
I've run into this in KVM so it's possible that your case is the same.
Check this article:
https://codingpackets.com/blog/kvm-host-high-cpu-fix/
I think you can try that setting safely on that node where the VM runs. At
least I could play with it without seeing any ill effects. I had a really
high CPU load on my FW VM when I upgraded to VSDL. This fix dropped it down
immediately.
Thanks,
Juhani
On Thu, May 27, 2021 at 10:46 PM David Johnson <djohnson(a)maxistechnology.com>
wrote:
Hi everyone,
I am slowly working the performance bottlenecks out of my rack, and ran
into this puzzling scenario.
Ovirt shows CPU usage at over 50%.
Windows shows CPU usage between 5 and 15 %
The backing store is TrueNAS NFS on a 10 GBit lan. I am seeing just under
1 GBit throughput on the storage network for this operation (create
database).
Am I reading this correctly that my system is bottlenecking on the CPU
used to handle the Windows disk IO over TCP/IP ?
Thanks
*David Johnson*
Screenshot of pertinent metrics:
[image: image.png]
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