Re: [patch V3] percpu_counter: scalability works

From: Tejun Heo
Date: Tue May 17 2011 - 10:03:09 EST


On Tue, May 17, 2011 at 08:55:33AM -0500, Christoph Lameter wrote:
> Well lets just adopt the system that vm statistics use. Bound the error by
> time and batch and allow the user to change the batch if more accuracy is
> desired.

Yeah, that would be the better long term solution.

> The _sum function is optional and should it should be explained that the
> result *could* be better but dont count on it.

We can implement force-flush for dire situations, similar to expedited
RCU flush thing.


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