Re: [PATCH net-next] virtio-net: tweak for better TX performance in NAPI mode

From: patchwork-bot+netdevbpf
Date: Mon Feb 24 2025 - 03:20:33 EST


Hello:

This patch was applied to netdev/net-next.git (main)
by David S. Miller <davem@xxxxxxxxxxxxx>:

On Tue, 18 Feb 2025 10:39:08 +0800 you wrote:
> There are several issues existed in start_xmit():
>
> - Transmitted packets need to be freed before sending a packet, this
> introduces delay and increases the average packets transmit
> time. This also increase the time that spent in holding the TX lock.
> - Notification is enabled after free_old_xmit_skbs() which will
> introduce unnecessary interrupts if TX notification happens on the
> same CPU that is doing the transmission now (actually, virtio-net
> driver are optimized for this case).
>
> [...]

Here is the summary with links:
- [net-next] virtio-net: tweak for better TX performance in NAPI mode
https://git.kernel.org/netdev/net-next/c/e13b6da7045f

You are awesome, thank you!
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