143
unused is wasted (lemmy.world)
submitted 3 months ago by ordellrb@lemmy.world to c/linuxmemes@lemmy.world
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this is right after closing qemu-kvm

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[-] luna@lemmy.catgirl.biz 1 points 3 months ago

I was wondering if the extra layer of whatever filesystem the swap file is created on creates overhead? Also i think some filesystems that do COW can negatively impact performance or something? Kind of remember reading that.

[-] Chewy7324@discuss.tchncs.de 1 points 2 months ago

For swap files on btrfs COW and features like compression have to be disabled. I believe for btrfs the swap file even has to sit on a subvolume with those features disabled, so it's not enough to only disable them for the swap file.

this post was submitted on 07 Apr 2024
143 points (95.5% liked)

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