Re: [PATCH bpf-next] bpf: cpumap: Move xdp:xdp_cpumap_kthread tracepoint before rcv

From: patchwork-bot+netdevbpf
Date: Wed Sep 11 2024 - 10:51:29 EST


Hello:

This patch was applied to bpf/bpf-next.git (net)
by Daniel Borkmann <daniel@xxxxxxxxxxxxx>:

On Thu, 5 Sep 2024 19:22:44 -0600 you wrote:
> cpumap takes RX processing out of softirq and onto a separate kthread.
> Since the kthread needs to be scheduled in order to run (versus softirq
> which does not), we can theoretically experience extra latency if the
> system is under load and the scheduler is being unfair to us.
>
> Moving the tracepoint to before passing the skb list up the stack allows
> users to more accurately measure enqueue/dequeue latency introduced by
> cpumap via xdp:xdp_cpumap_enqueue and xdp:xdp_cpumap_kthread tracepoints.
>
> [...]

Here is the summary with links:
- [bpf-next] bpf: cpumap: Move xdp:xdp_cpumap_kthread tracepoint before rcv
https://git.kernel.org/bpf/bpf-next/c/23dc9867329c

You are awesome, thank you!
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