#9pfs — Public Fediverse posts

Aaand I’m back on #9pfs. The #virtiofs mount turned out to be unstable very quickly. All I/O on the mount started hanging just after 2 days, requiring hard reset of a VM. I guess I’ll try that again in 12 months 🤷‍♂️

I've switched from #9pfs to #virtiofs mount for a VM I run under my #proxmox host at home and did a few #fio benchmarks.

9pfs (before):

seq read (1M, 1 thread) - 1950 MiB/s
rand read (4K, 4 threads) - 213 MiB/s
seq write (1M, 1 thread) - 468 MiB/s
rand write (4K, 4 threads) - 80 MiB/s

virtiofs (after):

seq read (1M, 1 thread) - 5258 MiB/s
rand read (4K, 4 threads) - 291 MiB/s
seq write (1M, 1 thread) - 1074 MiB/s
rand write (4K, 4 threads) - 84 MiB/s

2.7x sequential read, 2.3x sequential write, 1.3x random read, and 1.05x random write.

Pretty good improvements!

Especially that this is for my media (movies/tv) mount where mostly sequential I/O is typically performed.

Note the underlying hardware is Samsung QVO SATA SSD, which is rather slow SSD, and likely a bottleneck in those random read/write tests. I expect there would be much bigger differences on a fast NVMe drive.

The July 16th, 2024 Jail/Zones Production User Call is up:

https://youtu.be/1F836MFrIfY

We did a #9pfs deep dive, discussed example #CVEs, got a #Jailer update and hacked on it, discussed #VxLAN over #WireGuard and #IPsec, and more!

"Don't forget to slam those Like and Subscribe buttons."

#FreeBSD #illumos

FOR THE GLORY OF THE REPUBLIC!

https://reviews.freebsd.org/D41844

The #FreeBSD #9pfs client is finally getting love!

https://www.qemu.org/2022/12/14/qemu-7-2-0/

#9pfs : Massive general performance improvement somewhere between factor 6 .. 12.

Badly needed, tried 9p once, switched to nfs because of the really low performance. Will give it a try after update to 7.2.x

#linux #qemu