Messages in this thread | | | From | Jeff Moyer <> | Subject | Re: [PATCH v2 0/3] Add NUMA support for NVDIMM devices | Date | Wed, 10 Jun 2015 11:54:38 -0400 |
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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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