Mastering Proxmox - Third Edition

Multiqueues

Ordinarily, KVM VMs are single-queued, where sending and receiving packets occurs one at a time and not in parallel. Multiqueues remove this bottleneck by allowing sending and receiving in parallel by leveraging virtual CPU cores for parallel queues. Multiqueues are especially useful for a VM which is active on numerous clients, for example, a web server. In the Proxmox Network tab in the VM creation dialog box, we can enter a numeric value to define how many parallel queues the VM should use. This value should not be more than the allocated vCPU of the VM. For example, if the VM has a virtual core count of four, we can set a Multiqueues value of 4. Multiqueues increase network performance of a VM greatly since both sending and ...