Hello, Has anyone seen jitter from 0.5ms to 500ms on PCI-E attached (SR-IOV) Physical function / virtual function Network interfaces on OpenBSD Machines running on a KVM Virtual machine type (Q35) ?
any tips for diagnosing what is causing the jitter ? I have ruled out the driver Ixl by comparing physical / bare metal performance vs performance when the physical function of the nic is passed through to the KVM Q35 guest I have also ruled out the hypervisor as centos Guest VMs running with the same hardware don't suffer from the jitter issue -- Kindest regards, Tom Smyth.
