KVM and pfsense CPU overhead
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This CPU diference between running top at hypervisor level (KVM) and inside pfsense is normal?
This is when the firewall is almost idle, qemu process is beween 10 and 25% and pfsense values never go over 1% if you sum up all of them.
I have 2 intel i350 nic passthrough.
Do you experience the same issue?
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@l0rdraiden yup same issue here - on esxi and also on kvm.
1Gbit iperf test through pfsense also pumps one 3.9 ghz core (i3 7100) to 100%. On bare metal it barely touches the cpu.On esxi its getting better when you set hw.pci.honor_msi_blacklist=0 in /boot/loader.conf.local
so the igb driver uses msi-x interrupts instead of msi. -
@segobi said in KVM and pfsense CPU overhead:
hw.pci.honor_msi_blacklist=0 in /boot/loader.conf.local
Do you know the equivalent configuration for KVM? I have my config in xml format.
Or any solution for KVM? -
@l0rdraiden Hi,
yea found a solution for virtualizing pfsense. I switched from kvm / esxi to XEN and its working perfectly now.