Arch Linux

chftyrol

Member

Registered: 2016-09-18

Posts: 2

systemd-journald.service slows down my boot

Hi everybody,
first post here, so any advice is welcome.
Now, I was doing some mainteinance, when I noticed the systemd-journald service slows down my boot up process.
systemd-analyze gives the following output

Startup finished in 2.037s (firmware) + 3.335s (loader) + 3.182s (kernel) + 12.278s (userspace) = 20.833s

And when I add blame it says:

 
          7.169s systemd-journald.service
          3.271s dev-sda2.device
          1.998s systemd-fsck@dev-disk-by\x2duuid-a9d5e94b\x2dd4e5\x2d4e50\x2d8207\x2df18824abb475.service
          1.649s netctl-auto@wlp2s0.service
          1.349s boot.mount
           871ms tmp.mount
           754ms systemd-tmpfiles-setup-dev.service
           590ms systemd-journal-flush.service
           588ms systemd-udevd.service
           571ms fcron.service
           518ms systemd-tmpfiles-setup.service
           501ms bluetooth.service
           414ms dev-sda4.swap
           378ms polkit.service
           352ms systemd-backlight@backlight:intel_backlight.service
           350ms systemd-modules-load.service
           336ms systemd-backlight@leds:dell::kbd_backlight.service
           317ms home.mount
           312ms systemd-rfkill.service
           196ms systemd-udev-trigger.service
           140ms systemd-random-seed.service
           108ms alsa-restore.service
           105ms dev-mqueue.mount
           104ms dev-hugepages.mount
            92ms user@1000.service
            83ms systemd-vconsole-setup.service
            78ms systemd-remount-fs.service
            70ms systemd-logind.service
            68ms systemd-sysctl.service
            58ms kmod-static-nodes.service
            51ms sys-kernel-debug.mount
            51ms systemd-update-utmp.service
            42ms rtkit-daemon.service
            27ms systemd-user-sessions.service
             1ms sys-kernel-config.mount

I was curious and went to see some typical values of time for the incriminated service, and it turned out it normally is of a few tens of milliseconds.
So, I vacuumed my journal to make it less than 100M and set up a limit of size. I also ran verify and nuked a journal file which turned out to be corrupted.

Still, the time value when booting did not change appreciably. Do you guys have any other ideas on what to try or the possible cause of this?
When I read journalctl -b to see what is going on at boot the only entries relative to systemd-journald are

Sep 18 18:10:49 caprica systemd-journald[208]: Runtime journal (/run/log/journal/) is 8.0M, max 392.2M, 384.2M free.
Sep 18 18:10:49 caprica systemd-journald[208]: System journal (/var/log/journal/) is 88.0M, max 100.0M, 11.9M free.
Sep 18 18:10:50 caprica systemd-journald[208]: Time spent on flushing to /var is 897.448ms for 2 entries.

Also, how can I reduce the time relative to userspace?

Thank you all in advance!

Last edited by chftyrol (2016-09-18 16:33:06)

jasonwryan

Anarchist

From: .nz

Registered: 2009-05-09

Posts: 30,424

Website

Re: systemd-journald.service slows down my boot

Not a Sysadmin issue, moving to NC...

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Arch + dwm   •   Mercurial repos  •   Surfraw

Registered Linux User #482438

FlowIt

Member

Registered: 2014-10-25

Posts: 239

Re: systemd-journald.service slows down my boot

My guess is your journal grew too big. Limiting the maximum size might help: https://wiki.archlinux.org/index.php/sy … size_limit

chftyrol

Member

Registered: 2016-09-18

Posts: 2

Re: systemd-journald.service slows down my boot

Thank you for your reply, but I actually already tried that. I have a maximum size of 100M now.