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 X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 83F5FC43381 for ; Tue, 26 Mar 2019 08:13:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 55C7A20830 for ; Tue, 26 Mar 2019 08:13:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="WhZhYCOe" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731297AbfCZINM (ORCPT ); Tue, 26 Mar 2019 04:13:12 -0400 Received: from mail-wm1-f66.google.com ([209.85.128.66]:50921 "EHLO mail-wm1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726302AbfCZINL (ORCPT ); Tue, 26 Mar 2019 04:13:11 -0400 Received: by mail-wm1-f66.google.com with SMTP id z11so11637811wmi.0 for ; Tue, 26 Mar 2019 01:13:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=kHuP0LZxzhT3vo2g2ooobWKz1eC7a8dgGNzqptrxU28=; b=WhZhYCOewQWOycBJdhTfGPx8DiiR51s+Ak5nG16D5TM8waG+bqL2DA24RjdWCkbF9v KYXOmU2/YUH/KYdQwjLQfD54Jiqtcaxs9KfiqlsSuMqk4PyGtztj/+5GdesnQbPNKh9/ DjhapY1/rxUn9r4ScvrZIJDhHkBJ9rFtIrfMOF/Pgm6WPUFbkk2+6b8ZuiAUuCtCFx74 i8xkjna1xbZN+BQhAXh4Rv2Dju+BhVGtvWVbIgabkSJXah4wIgrY+/oqK/aVxZe7k16n jvVusIG1JZngIOHCvUBNlbQpDhWH70NTYdHvoSyyaYRCLJYAa4KTe70pqs4Sm+snJ1cB Jx3A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=kHuP0LZxzhT3vo2g2ooobWKz1eC7a8dgGNzqptrxU28=; b=inFjJD7zwcjRT4CvZl/JPf+HQV1gDe5tjXqci326JuRkMgNfqKQcOQzEhga1WrP+P/ u4E4ehEmZ6OYyjqhv5ImttG+60rz5Pgpt9p8jt0Hyx/hXFWl2xlCKUme9Xc1pz4IpWTM PnmhSaib8BD7NNMLRqLxd4T6UikQudzAt2muDZrjzCBEeS2L8aqHJE6iyyW26dKczKw4 0dOC07ETujYGSWARLfvzvT1m7+gpeEvrl76DGIcATxQacs4KFksqLl0nD2+/TvFRb0jh 3u4J91LRH9wGjz2eIilCZHlu5m7dmSAcb7S/XWMXrcVT0GikQw/HWbR3RqMviP9x+yJH EBsw== X-Gm-Message-State: APjAAAXKy0IF0I6PmEh0tRn32zty5mAwHGdV255EpjnWvtGdWG1mzk85 KJZAGCg8NHJo4Px7NR7cUw8= X-Google-Smtp-Source: APXvYqwDcP2QQMMpxXU4j955W8eSCNTagDvnjZ5EeOsaJ5kynV7+VUHpfcoctjRYTVcFOivnRmKSJA== X-Received: by 2002:a7b:cb1a:: with SMTP id u26mr8600553wmj.46.1553587989063; Tue, 26 Mar 2019 01:13:09 -0700 (PDT) Received: from [192.168.8.147] (26.249.23.93.rev.sfr.net. [93.23.249.26]) by smtp.gmail.com with ESMTPSA id w8sm21070487wmc.0.2019.03.26.01.13.07 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 26 Mar 2019 01:13:08 -0700 (PDT) Subject: Re: [PATCH bpf-next 0/7] bpf: Propagate cn to TCP To: Alexei Starovoitov , Eric Dumazet Cc: brakmo , netdev , Martin Lau , Alexei Starovoitov , Daniel Borkmann , Kernel Team References: <20190323080542.173569-1-brakmo@fb.com> <704cb63c-13cd-f0ed-d546-18e3596bb63d@gmail.com> <20190323154124.gorqpaqex7ihfs6d@ast-mbp> <0841fe0d-7fcd-bb59-3694-af9969cec5af@gmail.com> <20190324161911.h5eotv2j7f5avcpm@ast-mbp> <5aec97f1-545a-f898-fdd9-c5821d5c6e39@gmail.com> <27e91d11-b454-924d-58ab-a68a0aade906@gmail.com> <20190326042704.7szakyos3ofemowl@ast-mbp> From: Eric Dumazet Message-ID: Date: Tue, 26 Mar 2019 01:13:06 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20190326042704.7szakyos3ofemowl@ast-mbp> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 03/25/2019 09:27 PM, Alexei Starovoitov wrote: > In other words when we're clamping aggregated cgroup bandwidth with this facility > we may need to drop the only in flight packet for this flow > and the flow restarts after default 200ms probe timer. TLP should send a probe that does not depend on 200ms but more on RTT.