Re: mail log question
On 2025-09-12 14:22:34 +0200, Markus Schönhaber wrote:
> If you just want to see all "mail-related" messages with journalctl, you
> can use
>
> $ journalctl --facility mail
Indeed, thanks a lot!
> That doesn't help with journalctl's slowness if the journal has grown
> big, of course.
It actually helps *very much*.
joooj% time journalctl -b --facility mail > /dev/null
journalctl -b --facility mail > /dev/null 1.24s user 0.13s system 84% cpu 1.616 total
joooj% time journalctl -b -u postfix\* > /dev/null
journalctl -b -u postfix\* > /dev/null 3.79s user 28.51s system 26% cpu 2:02.46 total
So "--facility mail" is here 75 times as fast as "-u postfix\*".
--
Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
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Work: CR INRIA - computer arithmetic / Pascaline project (LIP, ENS-Lyon)
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