Virtio devices emulation in SPDK based on vfio-user protocol скачать в хорошем качестве

Virtio devices emulation in SPDK based on vfio-user protocol

As we already know, Storage Performance Development Kit(SPDK) presented how to emulate complete NVMe PCIe devices to virtual machines from a separate user-space process. Now, SPDK is supporting more PCIe devices based on vfio-user. In this session, we will introduce the virtio PCIe abstraction layer base on vfio-user, and then the virtio-blk and virtio-scsi device emulations based on the common virtio PCIe abstraction layer. We will provide a comparison between SPDK vhost-user solution and the vfio-user virtio-blk/scsi solution, including the performance, thread modeling and implementation differences. We’ll wrap up by showing some use cases, performance data, and future development plans.