Re: [REPORT] cfs-v4 vs sd-0.44

[Ingo Molnar]

* Rogan Dawes <lists@xxxxxxxxxxxx> 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.

	Ingo
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