Messages in this thread | | | Date | Wed, 24 Jun 2009 16:55:08 -0700 | From | Andrew Morton <> | Subject | Re: [PATCHSET] percpu: generalize first chunk allocators and improve lpage NUMA support |
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On Wed, 24 Jun 2009 22:30:06 +0900 Tejun Heo <tj@kernel.org> wrote:
> This patchset is available in the following git tree and will be > published in for-next if there's no major objection. It might get > rebased before going into for-next. > > git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu.git lpage-numa
<tries to read the patches>
Boy, this stuff is complicated. Does it all work?
The Impact: lines were useful :)
I assume from the tremendous number of for_each_possible_cpu()s that CPU hotplug awareness won't be happening.
Do we have a feeling for the amount of wastage here? If
num_possible_cpus() - num_online_cpus() == N
and N is large, what did it cost?
And what are reasonable values of N?
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