qemu-kvm high, unbalanced CPU usage; high CPU latency in VMs
Issue
- VMs are experiencing high vCPU latency and high pCPU usage in the hypervisor.
- VMs are utilizing SRIOV with PCI passthrough.
- Expect CPUs to be more evenly utilized and to report usage closer to what is shown within the VM as they generally show usage around 1/3 of what hypervisor reports
- vCPU pinning is enabled
Environment
- Red Hat OpenStack 7.0 (RHOS)
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