SPDK vhost Target: A Practical Solution to Accelerate Storage I/Os by Ziye Yang & Changpeng Liu

Full name: SPDK vhost Target: A Practical Solution to Accelerate Storage I/Os Inside VMs

In this presentation, we would like to introduce SPDK’s user space vhost* solution (including vhost-scsi/blk/NVMe), which can collaborate with QEMU & KVM to accelerate virtio-scsi, virtio-blk and even emulated NVMe controller inside guest OS. Relying on SPDK vhost* solution, the performance of I/Os inside VMs can be greatly improved compared (e.g., with I/O IOPS increasing, I/O latency decreasing) compared with the existing solutions (e.g., original QEMU emulation solution, kernel vhost* solution). Moreover, we compare our SPDK vhost-scsi/blk/NVMe with other approaches like other solutions (e.g., direct device pass-through solution, SR-IOV solution, Zheng’s VFIO based solution in KVM 2017, FPGA acceleration solution, etc). Generally, our solution is much more scalable and practical. Currently, SPDK vhost* solution is adopted by many cloud service providers (e.g., Alibaba).

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Changpeng Liu
Senior software Engineer
Intel

Changpeng liu is a senior software engineer in Intel and involved in SPDK (storage performance development kit) development work.

Ziye Yang
Senior Software Engineer
Intel

Ziye Yang is a senior software engineer in Intel and involved in SPDK (storage performance development kit) development work. Before that, Ziye worked in EMC for 4 and half years. Ziye is interested in system virtualization, file system and storage related research and development work. Ziye currently has 12 issued patents in US and 4 issued patents in PRC. Ziye holds a master degree in computer science from Fudan University in 2009.

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