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    SubjectRe: Tickles scheduler
    On Tue, 26 Oct 2010, Martin Nybo Andersen wrote:

    > On Tue, 26 Oct 2010, Dragoslav Zaric wrote:
    > > [...]
    > >
    > > Is it at all possible to implement kernel without ticking, spin system
    > > by events and periods ?
    > You can compile with CONFIG_NO_HZ=n if you want a ticking kernel.

    The kernel always ticks when a process is running CONFIG_NO_HZ does
    nothing for that.

    > > Maybe ticking is still best solution to have fast responding system ?

    I think we need a tickless kernel.... Yes....

    > My guesses are that it has already been benchmarked for speed, but you can
    > still test it yourself.
    > At least power usage/battery times is much better with a tickless kernel.

    Well yes CONFIG_NO_HZ really should say CONFIG_NO_HZ_IDLE. You have
    no ticks when a cpu is idle. Otherwise we are ticking...

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