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    SubjectRe: [RFC] kernel facilities for cache prefetching
    Date
    On Tuesday 02 May 2006 11:53, Wu Fengguang wrote:
    > On Tue, May 02, 2006 at 10:30:17AM +0200, Arjan van de Ven wrote:
    > > one interesting thing that came out of the fedora readahead work is that
    > > most of the bootup isn't actually IO bound. My test machine for example
    > > can load all the data into ram in about 10 seconds, so that the rest of
    > > the boot is basically IO-less. But that still takes 2 minutes....
    > > So I'm not entirely sure how much you can win by just attacking this.
    >
    > Yes, I find it hard to improve the boot time of the init.d stage.

    Then _get rid of your init.d_.

    SysV init sequence is insane.

    I use daemontools-based setup and it starts up to login prompt
    in 5-10 secs (counting from the root fs mount).

    In my setup, after a few simple startup scripts a svscan process
    is called, which starts all services in parallel.
    Gettys are services, and start right away.
    --
    vda
    -
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