Re: defragmenting best practice?

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> Case #1
> 2x 7200 rpm HDD -> md raid 1 -> host BTRFS rootfs -> qemu cow2 storage
> -> guest BTRFS filesystem
> SQL table row insertions per second: 1-2

"Doctor, if I stab my hand with a fork it hurts a lot: can you
cure that?"

> Case #2
> 2x 7200 rpm HDD -> md raid 1 -> host BTRFS rootfs -> qemu raw
> storage -> guest EXT4 filesystem
> SQL table row insertions per second: 10-15

"Doctor, I can't run as fast with a backpack full of bricks as
without it: can you cure that?"

:-)
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