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I have f2fs partition formatted with -O extra_attrs,compression. I've applied chattr +c to / before installing Archlinux.

du shows 6.4G used and df shows 6.5G used. Compression algorithm is set in the fstab.

How do I check that files are compressed indeed?

User3586421
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1 Answers1

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du --apparent-size should show the size as seen by programs if they were to count the bytes of the files.

Usually this is smaller than the size on disk because, especially for small files, there is wasted space due to the usual 4k-sized blocks but if your files are indeed compressed it should give a larger number than df.

connermckay
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