[systemd-devel] How to speed up journalctl -n foo ?
Matthias Urlichs
matthias at urlichs.de
Wed Jan 14 10:42:05 PST 2015
Hi,
Ben Greear:
> > real 0m25.618s
> > user 0m2.361s
> > sys 0m23.197s
> >
Something seems broken here. Do you have any old and/or inconsistent
journal files lying around?
> [root at ath9k-f ~]# time tail -2000 /var/log/messages > /tmp/foo.txt
>
> real 0m0.005s
> user 0m0.002s
> sys 0m0.003s
>
To be fair, journalctl is of course slower if you don't filter for
anything -- but the -nX case should be fast enough anyway.
$ time journalctl -n 2000 > /tmp/foo.txt
real 0m0.068s
user 0m0.056s
sys 0m0.008s
--
-- Matthias Urlichs
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