[densone]

First off FreeBSD FTW. I use it everywhere over Linux now for the first time in 25 years and couldn’t be happier. My only wish is that BSD had a better non-CoW file system. Databases and Blockchains are already CoW so it does irk me slightly to use zfs for them. That being said, I’ve never had a problem because of it.

[ivoras]

That's one of the fields FreeBSD is bad at: it's not really possible to get info on the current "normal" file system, UFS2.

This latest version has something called "journaled soft updates" and it's a metadata-journaled system, i.e. the actual data is passed through, and it's non-CoW.

[chalst]

If your complaint about UFS is the lack of journalling, you might be interested in https://docs.freebsd.org/en/articles/gjournal-desktop/

[trasz]

Do not use gjournal though, use the more recent SUJ. (I believe it’s enabled by default those days.)

[densone]

My issue is performance. But I’ve only read about UFS performance. So it might be fine?

[csdvrx]

ZFS performance on raids of NVMe is quite bad. If you need performance, use xfs over mdadm.

[reincarnate0x14]

How, out of curiosity?

I haven't made much use of them but the mirrors or raidzs seemed to perform more or less inline with expectations (consumer hardware may not have the PCIE lanes really available to run multiple fast NVME devices well).

[kazen44]

this highly depends on how ZFS is configured.

for instance, what is your ARC configuration in this case? It can have a massive impact of performance.

getting ZFS to perform well takes a bit of work, but in my opinion performance is on par with most filesystems. (and it has a ton of additional features).

[moonchild]

> databases

direct i/o?