linux-kernel - Re: [PATCH v3] tracepoint: add new `tcp:tcp_ca

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Message-ID: <CANn89iLYsfD0tFryzCn2GbhrX4n+e0CPTXB6Vc=_m=U9Qi_CzA@mail.gmail.com>
Date:   Sat, 19 Aug 2023 05:10:20 +0200
From:   Eric Dumazet <edumazet@...gle.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     Zheao Li <me@...jusaka.me>, bpf@...r.kernel.org,
        davem@...emloft.net, dsahern@...nel.org,
        linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
        mhiramat@...nel.org, ncardwell@...gle.com, netdev@...r.kernel.org,
        pabeni@...hat.com, rostedt@...dmis.org
Subject: Re: [PATCH v3] tracepoint: add new `tcp:tcp_ca_event` trace event

On Sat, Aug 19, 2023 at 3:52 AM Jakub Kicinski <kuba@...nel.org> wrote:
>
> On Sat, 12 Aug 2023 20:12:50 +0000 Zheao Li wrote:
> > In normal use case, the tcp_ca_event would be changed in high frequency.
> >
> > The developer can monitor the network quality more easier by tracing
> > TCP stack with this TP event.
> >
> > So I propose to add a `tcp:tcp_ca_event` trace event
> > like `tcp:tcp_cong_state_set` to help the people to
> > trace the TCP connection status
>
> Ah, I completely missed v3 somehow and we got no ack from Eric so maybe
> he missed it, too. Could you please resend not as part of this thread
> but as a new thread?

I was waiting for a v4, because Steven asked for additional spaces in the macros
for readability ?