this post was submitted on 06 May 2024
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Linux Gaming

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BTRFS for Linux gaming? (lemy.lol)
submitted 4 months ago* (last edited 4 months ago) by [email protected] to c/[email protected]
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I'm using EndeavourOS with ext4 file system for daily usage and a dual bootable Windows for gaming. What I want to have right now is getting rid of Windows completely.

When I tried it before, I had to try multiple tweaks for a game and find which one worked on Linux. Therefore, I want to take a snapshot with BTRFS and try it until I find the right configuration.

While I have quite a bit of experience with Linux, I've never used BTRFS. Do you think it's worth it?

I thought about keeping the games on the ext4 system, but I hate splitting the disk. I'm thinking of keeping the games in a non-snapshot volume.

UPDATE: I just re-installed EndeavourOS with BTRFS + snapper + BTRFS Assistant :)

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[–] [email protected] 2 points 4 months ago* (last edited 4 months ago) (1 children)

Reading the manpage (btrfs-filesystem), duplication can happen on some odd kernel versions, so no danger.

Edit: that was my interpretation of breaking up reflinks of cow data anyway. Seems there's more.

[–] [email protected] 1 points 4 months ago (1 children)

If I know correctly, defrag will always duplicate the reflink files.

https://btrfs.readthedocs.io/en/latest/Defragmentation.html

Defragmentation does not preserve extent sharing, e.g. files created by cp --reflink or existing on multiple snapshots. Due to that the data space consumption may increase.

[–] [email protected] 1 points 4 months ago

Well, compression doubled my available space. ;-)