Re: [Qemu-devel] [PATCH v6 3/9] block: Add VFIO based NVMe driver

2018-02-13 Thread Eric Blake
On 01/16/2018 12:08 AM, Fam Zheng wrote: This is a new protocol driver that exclusively opens a host NVMe controller through VFIO. It achieves better latency than linux-aio by completely bypassing host kernel vfs/block layer. $rw-$bs-$iodepth linux-aio nvme://

[Qemu-devel] [PATCH v6 3/9] block: Add VFIO based NVMe driver

2018-01-15 Thread Fam Zheng
This is a new protocol driver that exclusively opens a host NVMe controller through VFIO. It achieves better latency than linux-aio by completely bypassing host kernel vfs/block layer. $rw-$bs-$iodepth linux-aio nvme:// randread-4k-1 10