VirtIO-FS Sent In For Linux 5.4 With Better Performance Over VirtIO-9P
Written by Michael Larabel in Linux Storage on 26 September 2019 at 05:38 AM EDT. 17 Comments
LINUX STORAGE --
VirtIO-FS as a better approach for sharing folders/files with guest VMs is set to debut in Linux 5.4.

VirtIO-FS makes use of FUSE and is much faster than virtio-8p that serves a similar purpose for sharing folders/files between the host and guest virtual machines. Directories can be exported from the host and mounted by the guest with VirtIO-FS and is effectively the "glue" between FUSE and VirtIO.

In addition to being faster than VirtIO-9P, VirtIO-FS also has better POSIX compliance. The QEMU support for VirtIO-FS is coming following this kernel addition.

More details via this morning's pull request as well as the project site at virtio-fs.gitlab.io.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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