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Disabling systemd-udev-settle F18

asked 2013-03-22 03:54:42 -0500

megh gravatar image

I use LVM drive still can i disable systemd-udev-settle to optimize boot? following is output of

systemd-analyze

> Startup finished in 1383ms (kernel) + 3176ms (initrd) + 22998ms (userspace) = 27558ms

AND

systemd-analyze blame

  7383ms systemd-udev-settle.service
  4701ms fedora-storage-init.service
  2863ms fedora-loadmodules.service
  2515ms named.service
  1876ms dev-mqueue.mount
  1860ms sys-kernel-debug.mount
  1848ms dev-hugepages.mount
  1769ms fedora-storage-init-late.service
  1755ms tmp.mount
  1747ms systemd-vconsole-setup.service
  1643ms systemd-remount-fs.service
  1483ms systemd-modules-load.service
  1482ms boot.mount
  1462ms lvm2-monitor.service
  1251ms systemd-udev-trigger.service
  1209ms systemd-udevd.service
   943ms colord.service
   742ms fedora-readonly.service
   605ms NetworkManager.service
   479ms systemd-sysctl.service
   472ms chronyd.service
   430ms firewalld.service
   380ms rtkit-daemon.service
   356ms accounts-daemon.service
   308ms gdm.service
   252ms home.mount
   243ms mcelog.service
   235ms restorecond.service
   231ms systemd-logind.service
   228ms abrt-vmcore.service
   208ms sm-client.service
   187ms ksm.service
   185ms abrt-ccpp.service
   178ms sendmail.service
   177ms irqbalance.service
   161ms systemd-readahead-replay.service
   148ms systemd-readahead-collect.service
   148ms systemd-user-sessions.service
    88ms systemd-tmpfiles-setup.service
    87ms sys-kernel-config.mount
    49ms udisks2.service
    47ms auditd.service
    45ms rpcbind.service
    28ms ksmtuned.service
    20ms polkit.service
     8ms upower.service
     5ms sys-fs-fuse-connections.mount

Pls suggest services i can disable

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answered 2014-04-20 21:26:03 -0500

mether gravatar image

No. If you are using LVM, you still need that service for your system work properly. You might be able to disable other services like sendmail or just remove the software entirely depending on how you are using your system.

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Try this to find out what services you can't afford to disable: systemd-analyze critical-chain.

sideburns gravatar imagesideburns ( 2014-04-20 21:32:44 -0500 )edit

Also systemd-analyze critical-chain shows how much time each service took to start, it could well be some other service is taking a long time to start and blocking other services, i.e. the service at the top of systemd-analyze blame output isn't necessarily the slow one.

Ahmad Samir gravatar imageAhmad Samir ( 2014-04-21 04:53:23 -0500 )edit

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Asked: 2013-03-22 03:54:42 -0500

Seen: 3,615 times

Last updated: Apr 20 '14