Red Hat Enterprise Linux KVM hypervisor I/O

Red Hat and IBM demonstrate top virtualization performance with KVM on IBM#39;s x3850X5


Do your workloads demand extremelly high I/O rates, low latencies, and deterministic storage I/O performance? A Kernel-based Virtual Machine (KVM) is your best bet.

This paper desribes tests validating that a single KVM guest can handle more than 800,000 I/Os per second (IOPS), and four KVM guests running on the same host can support an aggregate I/O rate of more than 1.4 million IOPS — hitting the ‘bare-metal’ limit of the test storage setup. The test environment was made up of an IBM System x3850 X5 host server with QLogic QLE 256x Host Bus Adapters (HBAs), Red Hat® Enterprise Linux® 6.3 hypervisor, and Red Hat Enterprise Linux 6.3 guests.