Slow boot which might be ureadahead

[Daniel Sandman]

Binary package hint: ureadahead

My boot time has risen from 20-25 sec to about 35 sec after a clean install of Natty. I am not sure if it's ureadahead but i suspect it. In the dmesg i attach you can see a jump:

[ 3.087606] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
[ 15.292831] <30>udev[308]: starting version 167

I have Ext4 on root and BTRFS on /home partition. Could that be an explanation?

Feel free to ask for more info and i will provide it as best as i can.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: ureadahead 0.100.0-11
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
Architecture: amd64
Date: Mon May 2 18:33:18 2011
PackDump: Error: [Errno 2] No such file or directory
PackDumpHome: Error: [Errno 2] No such file or directory
ProcEnviron:
 LANGUAGE=sv_SE:en
 PATH=(custom, no user)
 LANG=sv_SE.utf8
 SHELL=/bin/bash
SourcePackage: ureadahead
UpgradeStatus: No upgrade log present (probably fresh install)

[Daniel Sandman (almehdi-deactivatedaccount)]

Attached a "ureadahead --dump"

[Gerhard Radatz (gerhard-radatz)]

I have the same problem - the boot time has almost doubled, and a similiar jump from 4.71 to 21.15
But I still have ext3 file systems.
There are other big time gaps, too: from 22.38 to 32.53, and from 37.72 to 48.38 (I suspect the last one to be a different problem, though).

See attached dmesg.

Any ideas?

[Daniel van Vugt (vanvugt)]

The author of ureadahead has this advice, which includes how to gather the required information if ureadahead is slowing you down: http://ubuntuforums.org/showthread.php?t=1434502

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Arpit Nema (nema-arpit)]

Bug affects observed on Precise.