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SubjectRe: [driver-core PATCH v6 9/9] libnvdimm: Schedule device registration on node local to the device
On Thu, Nov 8, 2018 at 10:07 AM Alexander Duyck
<> wrote:
> Force the device registration for nvdimm devices to be closer to the actual
> device. This is achieved by using either the NUMA node ID of the region, or
> of the parent. By doing this we can have everything above the region based
> on the region, and everything below the region based on the nvdimm bus.
> By guaranteeing NUMA locality I see an improvement of as high as 25% for
> per-node init of a system with 12TB of persistent memory.

It seems the speed-up is achieved with just patches 1, 2, and 9 from
this series, correct? I wouldn't want to hold up that benefit while
the driver-core bits are debated.

You can add:

Reviewed-by: Dan Williams <>

...if the series needs to be kept together, but as far as I can see
the workqueue changes enable 2 sub-topics of development and it might
make sense for Tejun to take those first 2 and then Greg and I can
base any follow-up topics on that stable baseline.

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