Hi Andreas, On Sat, 15 Dec 2018 11:29:06 +0100 Andreas Enge <andr...@enge.fr> wrote:
> On Fri, Dec 14, 2018 at 09:50:26PM +0100, Danny Milosavljevic wrote: > > can you check whether dirindex (hashtables for directory) is enabled? > > # tune2fs -l /dev/... | grep -o dir_index > > See also > > https://blog.merovius.de/2013/10/20/ext4-mysterious-no-space-left-on.html > > It was, and I disabled it. Hopefully this does not break anything... > But does this not mean a big performance hit on /gnu/store/.links? It does mean that because it uses a linear search to find the file names now. What ext filesystem is it? https://en.wikipedia.org/wiki/Ext4 says that ext4 supports B trees - which should have no problems with hash collisions (it uses operator< to construct a tree -- and not hashes to construct a list).
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