From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ig0-x235.google.com (mail-ig0-x235.google.com [IPv6:2607:f8b0:4001:c05::235]) (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 4C7EE3B2C0 for ; Mon, 7 Mar 2016 16:48:39 -0500 (EST) Received: by mail-ig0-x235.google.com with SMTP id hb3so51030996igb.0 for ; Mon, 07 Mar 2016 13:48:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:subject:to:message-id:date:user-agent:mime-version; bh=mHMHGoxAnq+mKILMyZX2rZ33WHLlUbolRSPLOEtrTLs=; b=v3nLZ97BhidKACpMNj2KZyxmhUMJ6NmeYXf5qTSNsJNNnl2YTcHBpHDqHBihp+PoQW q7oefoGtI9HM/p+jHljzRErDzZ3RgXwrtcEeggigg++4Jpj52M7NRrpG2TZW+otRWHbN nyBW8y5GDWxIuOz2oaxYD30S9Ec5TeeLC7QvW6IBru0tDZ2Z0JBH5jeZWRK3ocOmnQIv ZSbzQv5Wc7S8lBo96I1iV5zRTwW6/Wr5epXdaMaN7M/cm0sMFZA9S35CmDqsaKb0FV8G TcrobMDRtEE+7nHFLIw8XU8U6lJSNIfXEQWGY0AMAAx1avcrJJ8pC6zX3m4QfEjfSct1 LI1w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:subject:to:message-id:date:user-agent :mime-version; bh=mHMHGoxAnq+mKILMyZX2rZ33WHLlUbolRSPLOEtrTLs=; b=KkOPxEDKgXhcsrBBWMm0L3Hh7vx+B74XNI6g6DLcQe7SZXhu70v35aqwzlL7B/WbjE dEf7JAAvs0iWqsAjkMHDrldPI4nWK0copp4NzL8bsKXfqJ3KqhHkDvL5C/7oKpwQEMmK 8SBmDCvVWQJZsBxJ8gfU4VE3gBoN6kgd+5rfCFn9VJgjbEfn1s5Zvq2/XgRHYqdjI12M /4Kv5YnmJhhVFIeKdhyyCD/RHi5GvpVe+2y1WZuHeyEL71QGbfTJVNnfyX/7TVL5YsJa 1pf8vr42uO4Gtg4j3XNTvJiaieVrEWokHJhl92XoHvh49pzB+lGV/xBgFbTb9xfVmeyc +OeA== X-Gm-Message-State: AD7BkJI3/8Zh4QbKuaCJxHWupvUOkS/deaHtrUhWa0TNxfhhWgjviXKb7LcImpINgjoJKw== X-Received: by 10.50.43.228 with SMTP id z4mr14938850igl.8.1457387318800; Mon, 07 Mar 2016 13:48:38 -0800 (PST) Received: from ?IPv6:2601:404:380:1cfd:6cd1:380f:cc39:9be9? ([2601:404:380:1cfd:6cd1:380f:cc39:9be9]) by smtp.gmail.com with ESMTPSA id jh9sm87318igb.4.2016.03.07.13.48.37 for (version=TLSv1/SSLv3 cipher=OTHER); Mon, 07 Mar 2016 13:48:38 -0800 (PST) From: Noah To: cake@lists.bufferbloat.net Message-ID: <56DDF72F.1010503@gmail.com> Date: Mon, 7 Mar 2016 16:48:31 -0500 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="------------080200000501000507070905" Subject: [Cake] Question About Sparse Flow Latency 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: Mon, 07 Mar 2016 21:48:39 -0000 This is a multi-part message in MIME format. --------------080200000501000507070905 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Hi, I have a question about cake's sparse flow latency. I've been using cake for a while now. I use dual flow isolation on my LAN, so I shape my LAN interface. When I download a game on steam, I have about 11-16 bulk flows. I use the command: *watch -n 1 tc -s qdisc show dev eth1* to see my qdisc stats refreshed every second. I notice that I will see sparse delays of 13-22 ms often. Is that normal, and what are common sparse delays I should be seeing under that load? I have tried using HTB + FQ_Codel, and I don't see the latency spikes I have with cake. I am using an archer c7 shaped to 60 mbps down 9 mbps up + ECN. CPU load about 60-80%. Thank you, Noah --------------080200000501000507070905 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit

Hi,

I have a question about cake's sparse flow latency.

I've been using cake for a while now.  I use dual flow isolation on my LAN, so I shape my LAN interface.  When I download a game on steam, I have about 11-16 bulk flows.  I use the command: watch -n 1 tc -s qdisc show dev eth1 to see my qdisc stats refreshed every second.  I notice that I will see sparse delays of 13-22 ms often.

Is that normal, and what are common sparse delays I should be seeing under that load?

I have tried using HTB + FQ_Codel, and I don't see the latency spikes I have with cake.

I am using an archer c7 shaped to 60 mbps down 9 mbps up + ECN.

CPU load about 60-80%.

Thank you,

Noah

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