Why does 'stat -c%s\ %b small_dir_size' report a 0 block size?

doru · 06-13-2020, 11:53 PM

Code:

~/tmp]$ mkdir test1
~/tmp]$ echo abcd >> test1/test.txt
~/tmp]$ stat -c"size in bytes: %s, size in blocks: %b, size of a block: %B" test1
size in bytes: 21, size in blocks: 0, size of a block: 512
~/tmp]$

xfs file system, 4kB minimum allocation unit on disk

berndbausch · 06-14-2020, 01:00 AM

I guess that the file is so small that it is entirely contained in the inode (reference), not occupying any data blocks.

MadeInGermany · 06-14-2020, 07:43 AM

I think that only du can report the allocated blocks properly.

doru · 06-20-2020, 03:03 AM

Quote:

Originally Posted by MadeInGermany

I think that only du can report the allocated blocks properly.

stat, ls -l and du are fully coherent on this.

shruggy · 06-20-2020, 03:02 PM

The same reference as given by berndbausch, but more relevant part: Shortform Directories.