Originally posted by bitman
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Bcachefs Completes Core Feature Work, Could Merge Soon If Review Goes Well
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This is very exciting and Linux can use an alternative to ZFS and Btrfs. Especially if it turns out to be faster, it could become a preferred filesystem. RedHat or Canonical really should just hire him to continue to improve bcachefs including making sure that there is a working RAID56, that writable snapshots work well, that it can support multiple physical volumes being loaded into a volume group and having a feature like Btrfs's subvolumes.
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basically, subj is at stage where btrfs was in 2008
Originally posted by jpg44 View PostThis is very exciting and Linux can use an alternative to ZFS and Btrfs.
Originally posted by jpg44 View PostEspecially if it turns out to be faster,
Originally posted by jpg44 View Postit could become a preferred filesystem. RedHat or Canonical really should just hire him
Originally posted by jpg44 View Postto continue to improve bcachefs including making sure that there is a working RAID56, that writable snapshots work well, that it can support multiple physical volumes being loaded into a volume group and having a feature like Btrfs's subvolumes.
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Originally posted by pal666 View Postbasically, subj is at stage where btrfs was in 2008
why another pile of bugs is so exciting?
and if not then what?
redhat could hire someone to work on btrfs. even some dozens of people instead of one. how does it work for redhat?
so some idiot over internet is excited by thoughts of someone else pouring hundred man-years onto chasing already existing filesystem?
Overstreet also is confident he can outdo btrfs on performance.
bcachefs codebase has a different design characteristic that is easier for many developers to work on.
The filesystem is based on existing bcache code in the kernel so the additional code to bring it to a full featured filesystem was not as great as a from scratch implementation.
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I think the review thread on LKML is interesting mainly because (AIUI) Dave Chinner is telling Linus that a specific piece of (supposedly generic) kernel code for managing locks is broken enough that it's caused the xfs devs so much pain that Dave refuses to rely on it, while Linus wants it to be stress-tested and stabilised.
One could easily be led to suspect that perhaps the Linux kernel is -- to paraphrase the inimitable Eddie Izzard -- being held together by string, duct-tape and a note from Linus' mother.Last edited by ermo; 11 June 2019, 07:43 PM.
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Originally posted by Britoid View Post
Wasn't the functionality of bcache merged in with bcachefs?
It might be feasible later to use bcachefs just for the features of bcache today, not sure, but the currents issues with bcache in master are completely not looked at by Kent anymore, and in one current issue a maintainer admitted not knowing enough to say much... This kind of stuff worries me for an fs....
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have they fixed this bug yet?
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