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    SubjectRe: [PATCH v2 0/3] Add NUMA support for NVDIMM devices
    Date
    Toshi Kani <toshi.kani@hp.com> writes:

    > Since NVDIMMs are installed on memory slots, they expose the NUMA
    > topology of a platform. This patchset adds support of sysfs
    > 'numa_node' to I/O-related NVDIMM devices under /sys/bus/nd/devices.
    > This enables numactl(8) to accept 'block:' and 'file:' paths of
    > pmem and btt devices as shown in the examples below.
    > numactl --preferred block:pmem0 --show
    > numactl --preferred file:/dev/pmem0s --show
    >
    > numactl can be used to bind an application to the locality of
    > a target NVDIMM for better performance. Here is a result of fio
    > benchmark to ext4/dax on an HP DL380 with 2 sockets for local and
    > remote settings.
    >
    > Local [1] : 4098.3MB/s
    > Remote [2]: 3718.4MB/s
    >
    > [1] numactl --preferred block:pmem0 --cpunodebind block:pmem0 fio <fs-on-pmem0>
    > [2] numactl --preferred block:pmem1 --cpunodebind block:pmem1 fio <fs-on-pmem0>

    Did you post the patches to numactl somewhere?

    -Jeff


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