This bug was fixed in the package coreutils - 9.7-3ubuntu2
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coreutils (9.7-3ubuntu2) resolute; urgency=medium
* Fix slow performance of 'du' on large directories (>= 10K files)
on Lustre filesystems by skipping inode sorting. The default
behaviour of sorting dirents by inode numbers negatively impacts
performance on Lustre because it interferes with Lustre's ability
to prefetch file metadata via statahead. (LP: #2137373)
- d/p/lp2137373-skip-dirent-inode-sorting-for-lustre.patch
-- Munir Siddiqui <[email protected]> Fri, 23 Jan 2026
18:41:52 +0500
** Changed in: coreutils (Ubuntu Resolute)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/2137373
Title:
Slow du performance on Lustre for large directories
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