From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 373B6C433EF for ; Thu, 7 Apr 2022 06:06:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233738AbiDGGID (ORCPT ); Thu, 7 Apr 2022 02:08:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46154 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229954AbiDGGH4 (ORCPT ); Thu, 7 Apr 2022 02:07:56 -0400 Received: from mail-yw1-x112c.google.com (mail-yw1-x112c.google.com [IPv6:2607:f8b0:4864:20::112c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 33A89176658 for ; Wed, 6 Apr 2022 23:05:55 -0700 (PDT) Received: by mail-yw1-x112c.google.com with SMTP id 00721157ae682-2eb3db5b172so50413887b3.6 for ; Wed, 06 Apr 2022 23:05:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=VBaUL5Qo8tgk860spwGfzbrtob87B4KJ2+FsDkmq6/U=; b=qLcr54HTJ7zWVVtv7O9dWIHN7PZYJyY8/tEUmzyxotg68nszvqSwd+5tHxUsZvm8/l 0GUi2h+qNt03C1iiikBD8KDPlJWCijpyk3ldmOTTIbhI2B9P2xQbgHyedekAde71w4En 8DHFBqh4c49PopW448YZ55FUTAx8AIFgu0kMd+XFX4UhcApLSdurXPywGjOss0wOlcjc FT/qWyt0WLF+mdF6vKzrKWdPcTuHuuB+6v3Uq6GccKEf0/sXKPUBKg1yXmsk+gX857jz n5GjKhToQyh8tH/2b3rWt0L2jVCVvxbVzGGb4IO0qfsabjq+wMzdHSerpXPS01ccNeFD 58qQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=VBaUL5Qo8tgk860spwGfzbrtob87B4KJ2+FsDkmq6/U=; b=ReEMZp+fHR/Wi/sMkkl8D0t24KpmbNQWGfplxy/ZebR8OQPmvzbMpXhr4HAVSU27dz jMlOgV5FbAxUci1Vxo4YL/OUobfHRtcVFPJ4+89hFGh+ipfX0nce/1bHSvgNQ8DyWHma j219ehRHOmzz9JFXsASQq1E9aoF+8KZQhvY4YoweQQR7vSo8YjGnqLsXpRvA7U9Ffjqx pA3ib9jbXTY0BqWZCSaQsLHJsUENjCsYDzvRPvZgbQ7yGeM1zZt+K96muY2flnrX+PJ4 pKZ+XJ3qBWOBRcXr9yQsO7BzloytKUZcF7YjXJcf4z/fm9HfmDAyM1AoHZ9PJ+nNgzvp Djug== X-Gm-Message-State: AOAM530UF7Jbquj6OkjJGsZifrItneulXzmJ9x0Hp7zrutxh9CgJHkUI AgOVGuzwIPRueH9t45BH23O68SG+XBK5YBTja9aIdw== X-Google-Smtp-Source: ABdhPJx+EgZFFeKjHLxz2hPDM7gYT118ppvd1ZdSuEtU9lAgV0Dmmv92dM4YOv0M+LTLXoVDQFgCZJlvn9MDGZNDDLA= X-Received: by 2002:a81:4f87:0:b0:2e5:dc8f:b4e with SMTP id d129-20020a814f87000000b002e5dc8f0b4emr9600169ywb.467.1649311554173; Wed, 06 Apr 2022 23:05:54 -0700 (PDT) MIME-Version: 1.0 References: <20220406010956.19656-1-jacky_gam_2001@163.com> In-Reply-To: <20220406010956.19656-1-jacky_gam_2001@163.com> From: Eric Dumazet Date: Wed, 6 Apr 2022 23:05:42 -0700 Message-ID: Subject: Re: [PATCH net-next] tcp: Add tracepoint for tcp_set_ca_state To: jackygam2001 Cc: David Miller , Jakub Kicinski , Paolo Abeni , Steven Rostedt , Ingo Molnar , Hideaki YOSHIFUJI , David Ahern , netdev , LKML , Yonghong Song , ping.gan@dell.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Apr 5, 2022 at 6:12 PM jackygam2001 wrote: > > From: Ping Gan > > The congestion status of a tcp flow may be updated since there > is congestion between tcp sender and receiver. It makes sense to > add tracepoint for congestion status set function to summate cc > status duration and evaluate the performance of network > and congestion algorithm. the backgound of this patch is below. > > Link: https://github.com/iovisor/bcc/pull/3899 > > Signed-off-by: Ping Gan > --- This seems good to me, thanks. Reviewed-by: Eric Dumazet