something magic about the size of a ports tree

I have on my poudriere build host a ports tree and wanted to move it to
the host where the resulting packages are installed:

root@jet:/usr/local/poudriere/ports # du -sh ports20230806
397M    ports20230806
root@jet:/usr/local/poudriere/ports # tar cf p.tar ports20230806
root@jet:/usr/local/poudriere/ports # ls -lh p.tar
-rw-r--r--  1 root wheel  672M Oct  3 18:00 p.tar

already the size of the tar file is somewhat magic; but if you un-tar it
on the other host I will get:

[guru@c720-1400094 ~]$ ls -lh p.tar
-rw-r--r--  1 guru wheel  672M  3 oct.  18:00 p.tar
[guru@c720-1400094 ~]$ tar xf p.tar
[guru@c720-1400094 ~]$ du -sh ports20230806
1,2G	ports20230806

How this is possible?

	matthias

-- 
Matthias Apitz, ✉ guru@unixarea.de, http://www.unixarea.de/ +49-176-38902045
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