Carlos E. R. wrote:
On 18/10/2015 12:43, Per Jessen wrote:
The situation I have is as follows:
I have a 600Gb filesystem mounted on /var - key directories under /var are:
/var/spool/postfix-in/{incoming,active} with 2 levels of hashing. On a busy day or after delays, each subdir might easily reach 10.000 files. 99% small files of less than 100Kb. (emails).
/var/spool/elsewhere/dir{0,1,2,3...1000}/maildirs - each such maildir might have 100.000 files.
It would make sense to test several filesystem types with that workload. Years ago I would have said without hesitation "use reiserfs". Nowdays, I don't know which to suggest. Perhaps XFS.
But your system is in production, so you can not do such changes...
Quite so. Besides, JFS has served me well for this purpose for over ten years, surviving all kinds of accidents and abuse. This issue with slowdowns is fairly recent, maybe less then 6 months old. -- Per Jessen, Zürich (7.9°C) http://www.dns24.ch/ - your free DNS host, made in Switzerland. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org