>> What are your disk space savings when using btrfs with compression?

> * There's the compress vs. compress-force option and discussion.  A
> number of posters have reported that for mostly text, compress didn't
> give them expected compression results and they needed to use compress-
> force.

"compress-force" option compresses regardless of the "compressibility"
of the file.

"compress" option makes some inference about the "compressibility"
and decides to compress or not.

I wonder how that inference is done?
Can anyone provide some pseudo code for it?

Regards,
Imran
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