Messages in this thread | | | Date | Wed, 25 Apr 2007 11:29:19 +0200 | From | Ingo Molnar <> | Subject | Re: [REPORT] cfs-v4 vs sd-0.44 |
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* Rogan Dawes <lists@dawes.za.net> wrote:
> My concern was that since Ingo said that this is a closed economy, > with a fixed sum/total, if we lose a nanosecond here and there, > eventually we'll lose them all.
it's not a closed economy - the CPU constantly produces a resource: "CPU cycles to be spent", and tasks constantly consume that resource. So in that sense small inaccuracies are not a huge issue. But you are correct that each and every such inaccuracy has to be justified. For example larger inaccuracies on the order of SCHED_LOAD_SCALE are a problem because they can indeed sum up, and i fixed up a couple of such inaccuracies in -v6-to-be.
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