Re: [ANNOUNCE] 3.9-rc1-nohz1

[Frederic Weisbecker]

2013/3/9 Ingo Molnar <mingo@xxxxxxxxxx>:
> We could certainly start tip:sched/dynticks (or tip:timers/dynticks) to accelerate
> the upstream merging of it. Nobody expressed deep concerns with the approach, so
> what is left is some more hard work.

Great to see you're ok with that direction! I'm working on that then.

>
> Two quick requests:
>
>  - Mind adding a Documentation/... file with a high level description,
>    rough design, open problems, etc.?

Sure! We'll maintain that along the way.

>
>  - Please outline how the current TODO entries affect upstream
>    mergability. Does it reduce the 'full'-ness of this dynticks mode?
>    Outright buggy behavior? Other trade-offs?

Mostly this is about upstream features that won't be working with the
current state of the art: enqueuing a posix cpu timer on a nohz CPU
may result in it being ignored by the target due to the lack of
ticking until expiration, perf events may not be round-robined, etc...
I'll make sure to document all these items.

Thanks.
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