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    SubjectRe: [PATCH 1/2] Dynamic Tick: Prevent clocksource wrapping during idle
    On Wed, 27 May 2009, john stultz wrote:
    > > Why do you want to recalculate the whole stuff over and over ?
    > >
    > > That computation can be done when the clock source is initialized or
    > > any fundamental change of the clock parameters happens.
    > >
    > > Stick that value into the clocksource struct and just read it out.
    > Sigh.
    > I was hoping to avoid hanging another bit of junk off of the clocksource
    > struct.

    Sure, but buying that 8 bytes with Einsteinian insanity is nuts.

    > But I guess we could compute that value on registration and keep it
    > around. Changes to mult could effect things, but should be well within
    > the 6% safety net we give ourselves.

    That was my thought as well, but even if we have to go to 12% it's way
    better than doing repeated nonsense on the way to idle.



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      Last update: 2009-05-27 22:35    [W:0.022 / U:0.228 seconds]
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