dpdk Tx falling short

[Stephen Hemminger]

On Tue, 8 Jul 2025 04:10:05 +0000
"Lombardo, Ed" <Ed.Lombardo at netscout.com> wrote:

> Hi Stephen,
> I ensured that in every pipeline stage that enqueue or dequeues mbufs it uses the burst version, perf showed the repercussions of doing one mbuf dequeue and enqueue.
> For the receive stage rte_eth_rx_burst() is used and Tx stage we use rte_eth_tx_burst().  The burst size used in tx_thread for dequeue burst is 512 Mbufs.

You might try buffering like rte_eth_tx_buffer does.
Need to add an additional mechanism to ensure that buffer gets flushed
when you detect idle period.