Bug 291071 - udev is too slow
Summary: udev is too slow
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Fedora
Classification: Fedora
Component: udev
Version: 10
Hardware: All
OS: Linux
medium
low
Target Milestone: ---
Assignee: Harald Hoyer
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2007-09-14 15:37 UTC by Need Real Name
Modified: 2012-08-08 14:49 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2009-12-18 05:58:30 UTC
Type: ---


Attachments (Terms of Use)

Description Need Real Name 2007-09-14 15:37:42 UTC
udev takes too long (>5 seconds) at boot.

Comment 1 Harald Hoyer 2007-09-14 16:02:38 UTC
please edit /etc/udev/udev.conf:
udev_log="info"

and see, if s.th. takes really long.

You know, udev loads all kernel modules/firmware... so the more modules udev has
to load, the longer the process lasts.

Comment 2 Need Real Name 2007-09-14 16:06:44 UTC
It's not one thing, it's everything.

This is under VMware by the way. It makes the boot time compared to Ubuntu
Dapper significantly longer.

Comment 3 Harald Hoyer 2007-09-14 16:20:58 UTC
what is the output of:
# ls /etc/udev/rules.d

Try to move away some rules files _besides_:
05-udev-early.rules
50-udev-default.rules
80-drivers.rules

Does any rule file make a significant change in boot time for you?

Comment 4 Need Real Name 2007-09-16 14:34:58 UTC
Is there a way to get udev to print the time it takes to run each rule?

Comment 5 Need Real Name 2007-09-16 14:35:18 UTC
Sorry, rule file, not rule.

Comment 6 Harald Hoyer 2007-09-17 07:30:39 UTC
Well, I actually did this per rule and summed up the time for every rule file:

https://www.redhat.com/archives/fedora-devel-list/2007-September/msg00771.html

Comment 7 Erik del Toro Streb 2008-02-15 23:22:15 UTC
Hello.

I want to affirm, that Udev takes much to long on Fedora systems. I have a IBM
Thinkpad X40 Notebook an it takes about 10 seconds. On my Athlon X2 BE-2400 (2,3
GHz) it takes about 7 seconds. On my old Pentium II 450 MHz it takes more than
10 seconds.

With other systems (i.e. Ubuntu 7.10) one can’t even see the udev status,
because it is so fast.

Comment 8 Harald Hoyer 2008-02-18 11:30:34 UTC
Compare the modules loaded in Ubuntu and Fedora. The more modules, the longer it
takes. Also check if firmware loading is required (/var/log/messages, dmesg)

Comment 9 Bug Zapper 2008-11-26 07:48:13 UTC
This message is a reminder that Fedora 8 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 8.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '8'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version prior to Fedora 8's end of life.

Bug Reporter: Thank you for reporting this issue and we are sorry that 
we may not be able to fix it before Fedora 8 is end of life.  If you 
would still like to see this bug fixed and are able to reproduce it 
against a later version of Fedora please change the 'version' of this 
bug to the applicable version.  If you are unable to change the version, 
please add a comment here and someone will do it for you.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events.  Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

The process we are following is described here: 
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

Comment 10 Bug Zapper 2009-11-18 09:15:37 UTC
This message is a reminder that Fedora 10 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 10.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '10'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version prior to Fedora 10's end of life.

Bug Reporter: Thank you for reporting this issue and we are sorry that 
we may not be able to fix it before Fedora 10 is end of life.  If you 
would still like to see this bug fixed and are able to reproduce it 
against a later version of Fedora please change the 'version' of this 
bug to the applicable version.  If you are unable to change the version, 
please add a comment here and someone will do it for you.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events.  Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

The process we are following is described here: 
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

Comment 11 Bug Zapper 2009-12-18 05:58:30 UTC
Fedora 10 changed to end-of-life (EOL) status on 2009-12-17. Fedora 10 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.


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