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    SubjectRe: dynamic-hz

    > The below patch allows to set the HZ dynamically at boot time with
    > command line parameter. HZ=1000 HZ=100 HZ=333 any other value just works
    > (though certain value may cause more or less drift to the system time
    > advance/decrease).
    > Is there any interest from the mainline developers to merge this into
    > 2.6? I'm getting requests for this feature being forward ported to
    > 2.6 (both for batch jobs and for the powersaved that can trim the hz
    > down to 80mhz). It should be up to the user to choose the HZ like it was
    > in 2.4-aa.
    > This patch is quite intrusive since many HZ visible to userspace have to
    > be converted to USER_HZ, and most important because HZ isn't available
    > at compile time anymore and every variable in function of HZ must be
    > either changed to be in function of USER_HZ or it must be initialized at
    > runtime. The code has debugging code (optional at compile time) so that
    > I can guarantee that there cannot be any regression.
    > Technically this makes a lot of sense to me (well, you can guess why I
    > implemented it in the first place), at least in archs where one cannot
    > reprogram the timer chip in a performant way (to stop timer ticks
    > completely until the next posted timer). This is in production for years
    > in SLES8 btw.

    It certainly helps with singing capacitors... What is overhead of

    People were complaining that M$ turns users into beta-testers...
    ...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl!
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