Hi,
I'd like to share my experience with folder sharing to a VM via virtio-9p. I've tried to use it on a home server:
I did not use any synthetic benchmarks, just tries my "workload", which is rescanning the music librabry for changes. I guess therefore the modification times and sizes of all files in the library folder are read. there are several thousand files in the library. As alternative I've tried to mount the folder via Samba and NFSv4.
The results are:
virtio-9p:
mount command:
scan time ~170 seconds.
Samba:
mount command:
scan time ~22 seconds
NFSv4:
mount command:
scan time ~17 seconds
So virtio-9p is 10 times slower for my use case.
I'd like to share my experience with folder sharing to a VM via virtio-9p. I've tried to use it on a home server:
- Host: FreeBSD 14.2 with vm-bhyve
- Guest: Debian 12.9
I did not use any synthetic benchmarks, just tries my "workload", which is rescanning the music librabry for changes. I guess therefore the modification times and sizes of all files in the library folder are read. there are several thousand files in the library. As alternative I've tried to mount the folder via Samba and NFSv4.
The results are:
virtio-9p:
mount command:
mount -t 9p -o trans=virtio,version=9p2000.L,ro,msize=512000 music /mnt/musicscan time ~170 seconds.
Samba:
mount command:
mount -t cifs -o user=lyrion,ro //host/music /mnt/musicscan time ~22 seconds
NFSv4:
mount command:
mount -t nfs4 -o ro,noatime host:/music /mnt/musicscan time ~17 seconds
So virtio-9p is 10 times slower for my use case.
