Hi Jens, On Wed, Oct 17, 2018 at 01:41:56PM +0200, Jens Holzkämper wrote: > We get the following results (with a variance within a few seconds) > > 4.9 ext4: > real 2m13.303s
[…] > 4.18 ext4: > real 4m3.276s Absent anyone being able to make a suggestion of exactly what broke here, perhaps you could build your own kernel packages and "git bisect" until you find the culprit? https://wiki.debian.org/DebianKernel/GitBisect When doing this I also find that using ccache avoids having to recompile absolutely everything all the time. Cheers, Andy -- https://bitfolk.com/ -- No-nonsense VPS hosting