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Comment by _zagj | Hacker News Reader

Red Hat's XFS file system originally came from IRIX.

I haven't heard it being called "Red Hat's XFS". Silicon Graphics, when it was still a company, ported XFS to Linux and Linus accepted it.

I've been using XFS for a very long time, and I've never been on Red Hat on my own machines..

You are of course correct. I also use XFS and not on Red Hat distros. That said, XFS is the default filesystem on RHEL since RHEL7 and I think it was the first major distribution to make that choice. Even today, both ext4 and btrfs are far more common choices.

Red Hat is probably the biggest contributor to XFS at this point as well.

So, I kind of get the comment.

> That said, XFS is the default filesystem on RHEL since RHEL7

RHEL is quiet recent.

Linux itself is only nine years older than RHEL. I think you might be operating on a different scale of recency than most.

You and I might have a different understanding of the word recent, but RHEL 7 is over ten years old, and Red Hat itself was one of the first companies based around Linux.

Red Hat has had this project for a while to give XFS (a traditional journaled filesystem) the features of "3rd generation" filesystems like ZFS or btrfs (i.e. checksums, snapshots and deduplication). That's mostly glued together using LVM and new LVM addons like VDO, but also new work in XFS itself like reflinks, metadata checksums etc. To me it seems like Red Hat lost faith in btrfs in the RHEL 7 time frame and that's why they dropped it from Tech Preview status.

As well as OpenGL, originally IRISGL, See for example,

  https://www.slideshare.net/slideshow/sigraph-asia-2008-modern-opengl-presentation/905245#13

Unfortunately the actual cool part, Inventor, wasn't part of it, and took several years until OpenInventor came to be.

XFS was/is astonishingly fast. When I had a an Indy in early 1990s I ran `find /` and it ran so fast (on a 4gb disk) that I thought it was an error.

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