Howdy! Can you please help me to use virtio in the most efficient way possible?
I'm building a userspace hypervisor switch called Snabb Switch at http://www.github.com/SnabbCo/snabbswitch. I want the performance to be competitive with kernel-space switches like the Linux bridge and Open vSwitch. So I want a really efficient mechanism for ethernet I/O. I'm starting to think that virtio is the best integration point. I've been taking a "hack first, think later" approach and so I started off by knocking up a simplistic shared memory network interface for QEMU, code is here: https://github.com/SnabbCo/QEMU/compare/master...shm. But this is on the same level of abstraction as e.g. the TAP interfaces and it feels like I should be digging deeper -- to deal directly with virtio ring buffers instead of copying and linearizing everything between the switch and the guest. So asking my question again more specifically. Can you help me to find the best way to integrate my switch with KVM? Thanks! -Luke -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
