Re: [PATCHSET] percpu: generalize first chunk allocators and improvelpage NUMA support

From: Tejun Heo
Date: Thu Jun 25 2009 - 20:40:49 EST


Andi Kleen wrote:
>> I don't know why, but in the configuration I saw each percpu area was
>> something like 1.8 MB.
>
> That sounds like something that needs to be investigated and fixed then.
> In a sense per cpu space is precious like stack space and shouldn't
> be wasted.

The large percpu space is most likely from lockdep.

Thanks.

--
tejun
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