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Thread: what makes ubuntu boot so fast ?

  1. #1
    Join Date
    Nov 2009
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    what makes ubuntu boot so fast ?

    Hello,

    I haven't tried the new release yet but everywhere I go I read about the big improvement in boot time. From about 50sec to 20.

    That's pretty amazing and I was wondering how they did it.

    On my archlinux, my boot time is about 35 sec after the system installation (and installed gnome and the basic softwares). There is less software pre-installed on archlinux so I was expecting it to boot faster than ubuntu but it seems that the ubuntu developpment team did a good job.
    Do you know what they did and if it's possible to adapt it to other linux distributions (it'd be sad not to) ?

    thank you


    ps: sorry if it's not the right place to post, but I didn't find anthing better

  2. #2
    Join Date
    Jun 2006
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    Re: what makes ubuntu boot so fast ?

    It's probably not any faster. People upgrade to newer version of Ubuntu after having crapped up their previous install over time. So the newer version ends up appearing much faster than what they had before. In actuality, it's just as fast or slow as a new install of any Ubuntu version.
    The moon will illuminate my room and soon I'm consumed by my doom.

  3. #3
    Join Date
    Jan 2010
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    Queensland - Australia
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    322
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    Ubuntu 9.04 Jaunty Jackalope

    Re: what makes ubuntu boot so fast ?

    im not exactly sure, however i think the improvements in ext4 would be a key point in the boot speed.

  4. #4
    Join Date
    Nov 2009
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    Re: what makes ubuntu boot so fast ?

    To improve the speed of applications and / or OS's developers usually re-structure the code in a way that reduces the number of lines of code.

  5. #5
    Join Date
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    The Church of Emacs
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    Ubuntu Development Release

    Re: what makes ubuntu boot so fast ?

    HAL removal is the key factor in boot speed,I believe.

  6. #6
    Join Date
    Nov 2009
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    6

    Re: what makes ubuntu boot so fast ?

    on this site, they compare ubuntu 9.10 and 10.04 on 3 different netbooks
    Even with clean install, there is improvement.

  7. #7
    Join Date
    Jul 2007
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    Ubuntu Development Release

    Re: what makes ubuntu boot so fast ?

    My last clean install of karmic took over a minute to get to a usable desktop.

    Lucid boots to usable desktop in less than 20 seconds.

    No doubt down to ureadahead and maybe mountall plus hal removal.
    Plus clever devs.

  8. #8
    Join Date
    Dec 2009
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    174
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: what makes ubuntu boot so fast ?

    Lucid lynx is slower than karmic for me.

    The time it takes after entering my password to the desktop fully appearing is slower than ~10 secs compared to karmic and it is a fresh install no other programs loading.

    Anyway i still like it.

  9. #9
    Join Date
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    Ubuntu Development Release

    Re: what makes ubuntu boot so fast ?

    removal of HAL
    Don't waste your energy trying to change opinions ... Do your thing, and don't care if they like it.

  10. #10
    Join Date
    Feb 2005
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    Re: what makes ubuntu boot so fast ?

    Quote Originally Posted by Kingsley View Post
    It's probably not any faster. People upgrade to newer version of Ubuntu after having crapped up their previous install over time. So the newer version ends up appearing much faster than what they had before. In actuality, it's just as fast or slow as a new install of any Ubuntu version.
    lolwut?

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