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Message-Id:
<174038523026.3048719.1870378720430783513.git-patchwork-notify@kernel.org>
Date: Mon, 24 Feb 2025 08:20:30 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Jason Wang <jasowang@...hat.com>
Cc: mst@...hat.com, andrew+netdev@...n.ch, davem@...emloft.net,
edumazet@...gle.com, pabeni@...hat.com, xuanzhuo@...ux.alibaba.com,
eperezma@...hat.com, virtualization@...ts.linux.dev, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] virtio-net: tweak for better TX performance in NAPI
mode
Hello:
This patch was applied to netdev/net-next.git (main)
by David S. Miller <davem@...emloft.net>:
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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