Thread (7 messages) 7 messages, 4 authors, 2025-02-28

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

From: patchwork-bot+netdevbpf@kernel.org
Date: 2025-02-24 08:19:58
Also in: lkml, virtualization

Hello:

This patch was applied to netdev/net-next.git (main)
by David S. Miller [off-list ref]:

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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