Messages in this thread | | | Date | Tue, 13 Sep 2005 15:17:55 -0400 | From | Mark Hounschell <> | Subject | Re: HZ question |
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Stefan Smietanowski wrote: > Mark Hounschell wrote: >>>Tim Schmielau wrote: >>> >>>>Do you also want to know about CONFIG_PREEMPT, SMP, current load, future >>>>load in order to estimate the delay you want to ask for? >>> >>>Are not CONFIG_PREEMPT, SMP, and current load, all determinable from >>>userland anyway? Why not HZ? > > And with dynamic HZ? > > Do you want > a) The HZ that was used when we booted > b) The HZ that is currently used (say 22, but could be 573 in 0.1s) > c) The MIN HZ (if there is such a thing and it is configured) > that the kernel will use. > d) The MAX HZ (same) that the kernel will use. > > Or do you want USER_HZ? > > Or are you after something else entirely. > > // Stefan
If dynamic HZ means dynamic timer resolutions I don't want it at all.
I guess the 'terms' John just used, ie timer resolutions, as opposed to HZ was maybe what I really should have asked for to begin with.
However since they are both bascially the same or at least one derived from the other......?
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