I've noticed that my boot time lately has been unusually slow. I am running 12.04 a laptop with a 2.40GHz CPU and 4GB of RAM. I've run bootchart and dmesg, but I'm not sure how to use them to address the issue.
Here's the bootchart:
Here's the dmesg output (it was too long to paste here): http://pastebin.com/bspNtsux.
Any help would be much appreciated. Let me know if I can provide any more information. Thanks in advance.
Best Answer
I don't know what boot time you are expecting, and how long it used to take on this machine. I think the
ureadahead
part is quite long, but I'm not sure, as I use SSDs for years now...Anyway, you can have a look at the post http://ubuntuforums.org/showthread.php?t=1434502 which explains ureadahead.
From this post, you can try the following:
trigger ureadahead reprofile
then reboot once to reprofile, and once again to see the result.
remove ureadahead and see if things get better (they will most probably get worse, but who knows ?)
then reboot and see if things are better. To reactivate ureadhead, rename
/etc/init/ureadahead.disable
back to/etc/init/ureadahead.conf
Does it help ?