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author | Alexander Duyck <alexander.h.duyck@linux.intel.com> | 2019-01-22 19:39:37 +0100 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-31 14:20:54 +0100 |
commit | c37e20eaf4b21125898fd454f3ea6b212865d0a6 (patch) | |
tree | 8bd93b653d5c088e7367402f7db1beea91863573 /drivers/nvdimm/bus.c | |
parent | async: Add support for queueing on specific NUMA node (diff) | |
download | linux-c37e20eaf4b21125898fd454f3ea6b212865d0a6.tar.xz linux-c37e20eaf4b21125898fd454f3ea6b212865d0a6.zip |
driver core: Attach devices on CPU local to device node
Call the asynchronous probe routines on a CPU local to the device node. By
doing this we should be able to improve our initialization time
significantly as we can avoid having to access the device from a remote
node which may introduce higher latency.
For example, in the case of initializing memory for NVDIMM this can have a
significant impact as initialing 3TB on remote node can take up to 39
seconds while initialing it on a local node only takes 23 seconds. It is
situations like this where we will see the biggest improvement.
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/nvdimm/bus.c')
0 files changed, 0 insertions, 0 deletions