From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-x22b.google.com (mail-wr0-x22b.google.com [IPv6:2a00:1450:400c:c0c::22b]) (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 242813BA8E for ; Wed, 29 Nov 2017 11:08:51 -0500 (EST) Received: by mail-wr0-x22b.google.com with SMTP id l22so3864862wrc.11 for ; Wed, 29 Nov 2017 08:08:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=Pfy1SjgT4p0KFJUD92KP/sbdP4FYXH9Y7ntv+fhhNJo=; b=aGWEgbuMJxjMKxe7VokbxGxSBSAfvwdOoDyMoEEuxr+GiwffgnQi3xnWiGoVWdofI7 MOwue8h1kk/YJNrK8ZtACweY17M6LHGiGlpn2zSXKjelxwDx+gVvR1eQ6RaKflHGiuKz Uk+QxVGJMScPvj4mQWtClLkrVlb6mlG6yWznoSO7MZ9/bTQS9Bj+yHtTanQ4zB8bHYgq y2h39x8PZ1bQxgDXN9byBbiwqMzqFjNXbutycvJPhyuQlsgq9oF+a+EPMCkukFrPcS0+ JHYvAhcI2jRTvIOwpxywrgY4VegTMCuO4vAO1+mXXZh7rN9Y0NNXSG6x/Q8TZ76+5HLv ziTQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=Pfy1SjgT4p0KFJUD92KP/sbdP4FYXH9Y7ntv+fhhNJo=; b=evnA6V7eRTsXOyIaG0a5SxPHfoTmvmnn1IJWt0XRtKK595oq3oubfkM0Fwzl1kjhGx FoUgooYtgZ/ZfIfjWZ9UvNwptBqU8yLZdBbo6hUV8XTT1RYt9rWnpr7FzxSTRBx7DvWL 50ePVnMMiEBBd7LXo1EzI86F8F2Q+wSVFWHyTqccNQbAXzYr5F0YC4msQbLRRAfCR3NF Uww8Z2Drq9mr8Y7y1Y23MLGdfBIKeghchr6Mn243H6dZy/ufqkgqAcgfvfvHk9hFj+26 tb4kpL+ygY42U092d42u1GIeGefNRDYJ0e3e3XrWjqKdNkQjSsr/uVxe1d21Lth1oirm pS0w== X-Gm-Message-State: AJaThX4LamYn5TGqFDqoSLqEYgdWW5aJgYsqVGYMz6rI3GKFzmtk41UD 0MDtCOW+91ygjdMffMPxXNM= X-Google-Smtp-Source: AGs4zMYWkbLgVSDBxq83Z2SsQc2XoYWrbSaJIl8Q0LXXYWsbfi9Xxww0eNtRIbge7QOSBfBzkgakaw== X-Received: by 10.223.196.189 with SMTP id m58mr3079939wrf.7.1511971730143; Wed, 29 Nov 2017 08:08:50 -0800 (PST) Received: from [10.72.0.130] (h-1169.lbcfree.net. [185.99.119.68]) by smtp.gmail.com with ESMTPSA id z108sm4173633wrb.67.2017.11.29.08.08.49 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 29 Nov 2017 08:08:49 -0800 (PST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: Pete Heist In-Reply-To: <878tep6qdp.fsf@toke.dk> Date: Wed, 29 Nov 2017 17:08:52 +0100 Cc: Georgios Amanakis , Cake List Content-Transfer-Encoding: quoted-printable Message-Id: <15453B62-04DD-4F00-B7E9-BC7469A2FAFE@gmail.com> References: <745FEC66-95A7-40E1-A8FA-57714D3AB6AC@gmail.com> <87zi76xlw5.fsf@nemesis.taht.net> <6F2894AD-87EA-4EFC-918E-625E49EDA977@gmail.com> <87o9nmxcbg.fsf@nemesis.taht.net> <87bmjmxbgw.fsf@nemesis.taht.net> <3FAFACA8-C918-4325-BF80-B7EBB6B9B4A7@gmail.com> <87k1y96swh.fsf@toke.dk> <20760855-77A6-456D-BFDB-2A5D17C4528A@gmail.com> <878tep6qdp.fsf@toke.dk> To: =?utf-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen?= X-Mailer: Apple Mail (2.3124) Subject: Re: [Cake] cake flenter results round 2 X-BeenThere: cake@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Cake - FQ_codel the next generation List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 Nov 2017 16:08:51 -0000 > On Nov 29, 2017, at 4:44 PM, Toke H=C3=B8iland-J=C3=B8rgensen = wrote: >=20 >> (That was also informative for me about how netperf decides when to >> emit a data point=E2=80=A6) >=20 > In that case I can add that the stated reason for this way of doing > things is performance (i.e., emitting data points should not interfere > with transfer performance). This is mostly an issue on systems where > getting time is expensive; which is not the case on modern Linux > systems. But I'm not entirely sure that the optimisation only has > historical reasons; it may be that some systems supported by Netperf > still has this issue... Nice, I do respect the level of thought put into netperf=E2=80=A6