[dpdk-dev] [PATCH 2/4] net/szedata2: use dynamically allocated queues

Ferruh Yigit ferruh.yigit at intel.com
Fri Apr 6 15:20:33 CEST 2018


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?

> 
> Signed-off-by: Matej Vido <vido at cesnet.cz>

<...>



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