Bcachefs Still Being Developed As A Next-Gen Linux File-System

[phoronix]

Phoronix: Bcachefs Still Being Developed As A Next-Gen Linux File-System

Announced last year was Bcachefs as a new Linux file-system derived from Bcache that aims for speed while having ZFS/Btrfs-like features. Since doing some early Bcachefs benchmarks last August, we hadn't heard much (anything?) from the project since...

http://www.phoronix.com/scan.php?page=news_item&px=Bcachefs-Still-Rolling

[starshipeleven]

Has this guy some decent chances of doing a next-gen filesystem that can compete with btrfs?
I'm a bit skeptical but I sure hope he does as btrfs is still a long way from getting anywhere near RAID5/6 support.

Anyone knows more?

[Prescience500]

Will it be fast enough to compete with ext4 as well?

[89c51]

Has this guy some decent chances of doing a next-gen filesystem that can compete with btrfs?
I'm a bit skeptical but I sure hope he does as btrfs is still a long way from getting anywhere near RAID5/6 support.

Anyone knows more?

Isn't raid 5/6 supported already in btrfs?

[nomadewolf]

This is all very vague for a supposedly 'stable' FS...
Where are the bechmarks/feature comparisons?...
And i don't mean by you Micahel.
The author should support his claims... somehow... i think... maybe... kinda...

[waxhead]

Isn't raid 5/6 supported already in btrfs?

Btrfs got raid5/6 but it is pretty far from in a good shape... it is mostly useless to be honest!

[starshipeleven]

Isn't raid 5/6 supported already in btrfs?

No, it's still highly experimental. You can make RAID5/6 arrays, but you'll likely hit major bugs that will eat your data. It may or may not checksum parity (google "adventures in btrfs raid5 disk recovery" to find a fresh discussion on the mailing list), and checksumming may or may not fail at random.

RAID1 is fine tho, most of the fun is in RAID5/6.

[starshipeleven]

This is all very vague for a supposedly 'stable' FS...
Where are the bechmarks/feature comparisons?...
And i don't mean by you Micahel.
The author should support his claims... somehow... i think... maybe... kinda...

bcachefs is an evolution of bcache, which is a stable cache-oriented (=high-speed random writes) SSD-only filesystem already in mainline since kernel 3.11. It was also sponsored by Google.
This is the site where the dev talks about bcache https://bcache.evilpiepirate.org/

This has more background on bcache features and development https://www.linux.com/blog/all-about...-kernel-bcache

[ciddu2000]

Hi,

Michael can you do a fresh benchmark of the different filesystems with bcachefs? The last one is old now, and since there's been a lot of modifications.

Thanks.

[PuckPoltergeist]

bcachefs is an evolution of bcache, which is a stable cache-oriented (=high-speed random writes) SSD-only filesystem already in mainline since kernel 3.11.

Wait, bcache is already a filesystem? Why do we need bcachefs then? bcache is SSD only? I can't use it with other media like rotating disks? Sounds like you need to inform yourself a little more.