Btrfs Seeing Some Nice Performance Improvements For Linux 5.9

[starshipeleven]

It sounds like btrfs is going to get a lot more care and attention from devs now that Fedora is on board.

This stuff was already queued when Fedora was deciding to adopt btrfs, we will see if more people appear in a few months.

[dev_null]

single disk. I don’t remember kernel.

[oleid]

Couple of years ago I lost 2TB volume because of btrfs bug. and a tool to fix the fs made everything much worse. Now I do not treat it seriously, at least wont put there what I want to find tomorrow. This never happened with ext4. Probably things enhance with a time, but I’m just scary.

RAID or single disk? What kernel?

[dev_null]

Couple of years ago I lost 2TB volume because of btrfs bug. and a tool to fix the fs made everything much worse. Now I do not treat it seriously, at least wont put there what I want to find tomorrow. This never happened with ext4. Probably things enhance with a time, but I’m just scary.

[finalzone]

It sounds like btrfs is going to get a lot more care and attention from devs now that Fedora is on board. Does Linus still use Fedora? Maybe this will help.

Yes. In fact, his homonym from Linus Tech Tips recently built a workstation for him and installed Fedora 32 Workstation.

https://youtu.be/Kua9cY8q_EI

[pal666]

AFAICT this speedup is for doing fsync on a file accessed by lots of threads...

i think it is for many threads/apps doing fsyncs in parallel

[pal666]

I hope they at some point will implement disk groups and the ability to assign subvolumes to it.

i don't see how it will be different from separate filesystem on those disks with subvolumes assigned to it, which you could do now

[pal666]

why haven't they fixed raid already?

because you don't care enough

[pal666]

But of course, we rely on Michael for more realistic performance measurements

you mean for benchmarking speed of filesystem resize?

[sireangelus]

why haven't they fixed raid already?