[PATCH v2] examples/l3fwd: adjust Tx burst size based on Rx burst

[Stephen Hemminger]

On Mon, 9 Jun 2025 09:58:27 +0000
Sivaprasad Tummala <sivaprasad.tummala at amd.com> wrote:

> Previously, the TX burst size was fixed at 256, leading to performance
> degradation in certain scenarios.
> 
> This patch introduces logic to set the TX burst size to match the
> configured RX burst size (--burst option, default 32, max 512)
> for better efficiency.
> 
> Fixes: d5c4897ecfb2 ("examples/l3fwd: add option to set Rx burst size")
> Cc: haijie1 at huawei.com
> Cc: stable at dpdk.org
> 
> Signed-off-by: Sivaprasad Tummala <sivaprasad.tummala at amd.com>
> Tested-by: Venkat Kumar Ande <VenkatKumar.Ande at amd.com>
> Tested-by: Dengdui Huang <huangdengdui at huawei.com>

What driver? Why not fix the driver.
If RX burst is small, there should be no way to get TX burst larger
than that to happen.