Re: [RFC GIT PULL] nohz: Full dynticks rq clock handling

[Ingo Molnar]

* Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:

> Another thing I just noticed; our update_curr() assumes its called at least once 
> every 4 odd seconds (2^32 ns like).
> 
> update_curr() is 'required' for things like task runtime stats and everything 
> that hangs off of that like cputimers etc.
> 
> Now I'm not entirely sure how the nr_running==1 nohz case deals with this, but I 
> can imagine it might take a while. In this case we might need to 'fix' 
> update_curr() to not asume the time delta fits in 32 bits.

Good point ...

Thanks,

	Ingo
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