[dpdk-dev] [PATCH] vhost: Fix retrieval of numa information in PMD

Yuanhan Liu yuanhan.liu at linux.intel.com
Wed Apr 6 07:03:45 CEST 2016


On Tue, Apr 05, 2016 at 05:09:47PM +0100, Ciara Loftus wrote:
> After some testing, it was found that retrieving numa information
> about a vhost device via a call to get_mempolicy is more
> accurate when performed during the new_device callback versus
> the vring_state_changed callback, in particular upon initial boot
> of the VM.  Performing this check during new_device is also
> potentially more efficient as this callback is only triggered once
> during device initialisation, compared with vring_state_changed
> which may be called multiple times depending on the number of
> queues assigned to the device.
> 
> Reorganise the code to perform this check and assign the correct
> socket_id to the device during the new_device callback.
> 
> Signed-off-by: Ciara Loftus <ciara.loftus at intel.com>
> ---

Acked-by: Yuanhan Liu <yuanhan.liu at linux.intel.com>

	--yliu


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