What is SRIOV?

SR-IOV (Single Root I/O Virtualization) is a hardware virtualization technology that allows a single physical PCIe device (like a network card) to present itself as multiple virtual PCIe devices. This allows virtual machines to bypass the hypervisor and directly access the physical I/O resources, leading to significantly improved performance, reduced latency, and lower CPU utilization compared to emulated or paravirtualized I/O.