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Date: Fri, 27 Mar 2015 14:45:36 -0500 (CDT)
From: Christoph Lameter <cl@linux.com>
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To: Peter Zijlstra <peterz@infradead.org>
cc: Viresh Kumar <viresh.kumar@linaro.org>,
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Subject: Re: [RFC] vmstat: Avoid waking up idle-cpu to service shepherd
 work
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On Fri, 27 Mar 2015, Peter Zijlstra wrote:

> On Fri, Mar 27, 2015 at 06:11:44AM -0500, Christoph Lameter wrote:
> >
> > Create a new slab cache for this purpose that does the proper aligning?
>
> That is certainly a possibility, but we'll only ever allocate nr_cpus-1
> entries from it, a whole new slab cache might be overkill.

This will certainly be aliased to some other slab cache so not much
overhead is created.