Commits on Aug 14, 2023

1. overlay: Diffsize: avoid naive diff …

   Computing the diff size for the rootful overlay storage driver used the
   naive diff.  The reasoning was that we have made use of rootful copy-up.
   The downside is a mind-blowing performance penalty in comparison to the
   rootless case.
   
   Hence, drop the naive diff and only compute the size of the directory
   which is absolutely sufficient for the motivating use case of
   podman-system-df.  This drops the execution of system-df from 19.3s to
   0.11s listing 5 containers and 1 image.
   
   Fixes: github.com/containers/podman/issues/19467
   Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
   Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>

   

   vrothberg committed Aug 14, 2023
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