On 06/15/2015 05:37 PM, Austin S Hemmelgarn wrote:

> For almost any non-COW filesystem (ext4, XFS, JFS, etc.), 1% or 100MB
> (whichever is larger) is generally a good buffer.  On BTRFS, I would say
> at least 5% or 1.5G (again, whichever is larger; and if performance is a
> concern, go for at least 10-20%), as BTRFS is known to have some rather
> poor behavior when running very close to full.
> 
> 
I got it.
Thanks all !

T.
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