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Concurrent Booting, make full use of your multi-core processors during boot time.

This is an easy way to make full use of your multi-core processors during boot time.

Open a Terminal (Applications->Accessories->Terminal) and type the following:

sudo gedit /etc/init.d/rc

Now look for CONCURRENCY=none and change it to CONCURRENCY=shell

When finished save the file and reboot to see if its working…. :)

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5 Responses to Concurrent Booting, make full use of your multi-core processors during boot time.

  • avatar
    mendo says:

    i timed my system from selection of o/s at grub to login screen in both ubuntu 9.04 and winxp pro:

    avg time ubuntu w/o concurrent processing: 27.97s

    avg time ubuntu w/concurrent processing: 27.7s

    avg time winxp: 38.5s

     

    should i see more of a difference?

     

    amd athlon 64 x2 6000+ AM2

    4gb ram (3.4gb recognized)

    wd raptor 36gb

    no overclocking

     

  • avatar
    tinuz says:

    You are right indeed this is a great way to make full use of your multi-core processors during boot time. It’s for the multi-core processors to work properly….

    My bad. Thanks for the notice :)

    will make some adjustments/rewrite the article a.s.a.p.

  • avatar
    tinuz says:

    You will not notice any difference when running Ubuntu this tweak is only to use 2 processors instead of 1 during the boot proces.

  • avatar
    Stefan says:

    Concurrency in this case means, that the boot-system tries to start those boot scripts at the same time that have no dependencies to each other.

    You should only activate this feature, if all scripts, started at boot-time support this "feature".

    This option has nothing to do with multiple cores of your cpu.

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