netdev - Re: [Patch net-next 00/13] net: add more tracepoints to TCP/IP stack

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Message-ID: <CAM_iQpWJ8+U7ExYC0mq_GWmsFw-2EYJEo6wnfZW_pVALa5KE6g@mail.gmail.com>
Date:   Thu, 5 Aug 2021 19:22:22 -0700
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     Linux Kernel Network Developers <netdev@...r.kernel.org>
Cc:     Cong Wang <cong.wang@...edance.com>
Subject: Re: [Patch net-next 00/13] net: add more tracepoints to TCP/IP stack

On Thu, Aug 5, 2021 at 11:57 AM Cong Wang <xiyou.wangcong@...il.com> wrote:
>
> From: Cong Wang <cong.wang@...edance.com>
>
> This patchset adds 12 more tracepoints to TCP/IP stack, both
> IPv4 and IPv6. The goal is to trace skb in different layers
> and to measure the latency of each layer.

It looks like we should not trace them at the end of each target function,
instead we have to trace them in the beginning, otherwise the ordering
is reversed in the output.

I will send V2 tomorrow.

Thanks.