From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-vs1-f52.google.com (mail-vs1-f52.google.com [209.85.217.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 5C0C93B29D; Fri, 1 Oct 2021 14:02:38 -0400 (EDT) Received: by mail-vs1-f52.google.com with SMTP id h30so12346183vsq.3; Fri, 01 Oct 2021 11:02:38 -0700 (PDT) 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=Zk7alIwrpqjFxA1Jn4RzlqGfTVjqgCwvyupkhMosedY=; b=fSAk+NWy5TBGCbtjQDmX4/JLgLklyAFj42xV5+euIELb624jNYDnadKllBo8bXD5z4 BiDIc1YkeYjU0iBhZP40Uruow5JNZw62GslBcSfrwBkhFuXiDVOfcuEtA7O7pIdGujoq /VM93+ylF7eyPMIL1dFVgBlPb58TpkC37hlcNQX4PjmBLBaUUtxLp7Xht+My9zLI83VX YAE8jBhaeVSsJaFvtWBGzc4CxWEe6jBzQg6MeYeLYZ3G+BFPK3JaxU0+PERbz3KBFqP6 QEH1ZRtnisGpitjoEvfxVqWfZV8lxdBkbazlJyNtJcbMXQ2MLwDttZTDsz53Hf2tVpK2 yYEg== X-Gm-Message-State: AOAM5335e/J6LwslQFs2DSrIpnPB40Qt9nC5w4Ibkrhq9x5LplTT6sFq bl8CHKIGgeP75x9DlxqVAWuuERJviwCJJWyUYKI= X-Google-Smtp-Source: ABdhPJy7Bl6CrrNOo2xUTIW6l3fQ1Ezpo+is1FAXib7btxacsCgtINBKwK9V4pS9OqJ5k+pYAbeD+p5Y3y5pfrI76do= X-Received: by 2002:a67:f558:: with SMTP id z24mr5865260vsn.30.1633111357621; Fri, 01 Oct 2021 11:02:37 -0700 (PDT) MIME-Version: 1.0 References: <56ef13985bd34834916aabef978db1f1@EX16-05.ad.unipi.it> In-Reply-To: From: Luigi Rizzo Date: Fri, 1 Oct 2021 20:02:26 +0200 Message-ID: To: Bob McMahon Cc: Luigi Rizzo , Dave Taht , "rpm@lists.bufferbloat.net" , Ben Greear , Karl Auerbach , bloat Content-Type: text/plain; charset="UTF-8" Subject: Re: [Bloat] Relentless congestion control for testing purposes X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Oct 2021 18:02:38 -0000 On Fri, Oct 1, 2021 at 6:33 PM Bob McMahon wrote: > > hmm, this looks interesting to a test & measurement guy. Can it be done with a setsockopt? I might want to add this as an iperf2 option, particularly if it's broadly available, I would be happy to submit it as one or two upstream patches -- perhaps one to implement the basic "ignore_holes" + setsockopt(), and another mechanism (if there isn't one already) to override defaults sockopts on certain sockets. I do think we need more readily available testing tool, cheers luigi