[dpdk-dev] [PATCH 2/4] net/szedata2: use dynamically allocated queues
Ferruh Yigit
ferruh.yigit at intel.com
Fri Apr 6 15:51:01 CEST 2018
On 4/6/2018 2:20 PM, Ferruh Yigit wrote:
> On 4/4/2018 2:42 PM, Matej Vido wrote:
>> Previously the queues were the part of private data structure of the
>> Ethernet device.
>> Now the queues are allocated at setup thus numa-aware allocation is
>> possible.
>
> Hi Matej,
>
> Yes by default [rt]x_queues are allocated via rte_zmalloc, which uses SOCKET_ID_ANY.
>
> And in burst functions, we do:
> nb_rx = (*dev->rx_pkt_burst)(dev->data->rx_queues[queue_id], rx_pkts, nb_pkts);
>
> So there is an access to rx_queues in each rte_eth_rx_burst() call.
>
> I wonder if you observe any performance difference with this update?
> And what about moving to the ethdev layer instead of keeping local to the PMD?
Forget about it, I thought you are allocating data->[rt]x_queues in specific
socket, but this just allocating queues in specific socket, which is OK.
Still I would like to hear comments if allocating data->[rt]x_queues arrays in
specific socket helps for performance.
>
>>
>> Signed-off-by: Matej Vido <vido at cesnet.cz>
>
> <...>
>
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