From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ig0-x236.google.com (mail-ig0-x236.google.com [IPv6:2607:f8b0:4001:c05::236]) (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 D443E3CB82; Mon, 8 Feb 2016 17:17:58 -0500 (EST) Received: by mail-ig0-x236.google.com with SMTP id ik10so96238829igb.1; Mon, 08 Feb 2016 14:17:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=zWs8res44G9xS+K6eIX9akeWnvy4sJcvIBqXDUdXIPc=; b=Ve4KSgc8v3OYq+KDnqgpqjo1A1Vz4zpKP7N2yOEYWMAlcv7dDsMyAyGYyhEpthYpQs /oHMruKYQ17yGddEfMkPVfgAA9BStNpKnolbIBxLQGEDJaq2LD0DMw/5Vhxk/MIiju+T i/K8rKiA4pO3TKPg8BpLAsVyECMHMIAOw2kNMmZc+o62SmZN1TXgDxjrGxYavYiofD3z FeCXm7VlW3ofTB9c0V7i7tla6r/HuEUpHa7lk+6Q3znajriHcOSKffx7dbBzmMFXFvtj BMRSdXtc0nCIiuLMV4wCaYfw56/+of3oGwJSN9Sv00XoRYFeB6PrBSxLn4m6YVvjlDl9 GzrQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=zWs8res44G9xS+K6eIX9akeWnvy4sJcvIBqXDUdXIPc=; b=DV41HagXo0yQPBwTAJLAbV26WLkWuv/Nk4ve014h0+BpxDJdKiL/ks8vzK7S3j9DeB ORhbsbLaKIUlTlqyDTjqYXy4pI4hcBgEcO0ZveLbQWqxvGIVuuMep8TRi/quJmHLeY1H so5i8pWCnZce6p3xJYpEE3Sp18ERSOpXQuyQ5c/kl3humBMySYr2RxbiEJSRc8llLLH9 rG9ewyaU6TKpDZgKqL3kwx+iU9ACz39zOlzFUXgp361z3N1oTshOQHhlukcavT1/8UGC 5Az+nnp6NGo7VG2pOBU8JBVlgHYARh03JlbfIwx5E1NaQW9RzPSZkWbwLR/qHOl1QBAk vl8A== X-Gm-Message-State: AG10YOTanegMjq02geW6Wlj8aZclk5Un7NU6QZ+G9cYx3b4kNPb/1uzHyHVprI2cmndgRbyX3qDoYIrliwqi9A== MIME-Version: 1.0 X-Received: by 10.50.73.137 with SMTP id l9mr1153549igv.30.1454969877457; Mon, 08 Feb 2016 14:17:57 -0800 (PST) Received: by 10.79.116.141 with HTTP; Mon, 8 Feb 2016 14:17:57 -0800 (PST) In-Reply-To: <56B8F445.3070400@taht.net> References: <56B8F445.3070400@taht.net> Date: Tue, 9 Feb 2016 06:17:57 +0800 Message-ID: From: Aaron Wood To: =?UTF-8?Q?Dave_T=C3=A4ht?= Cc: make-wifi-fast@lists.bufferbloat.net, cerowrt-devel Content-Type: multipart/alternative; boundary=089e013a2268b4741e052b49928b Subject: Re: [Cerowrt-devel] very good book on 802.11ac stuff X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 08 Feb 2016 22:17:58 -0000 --089e013a2268b4741e052b49928b Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable I've often wanted the same thing: What's the time-length of given packets (using various transmission rates), and the inter-packet delays, etc. What _is_ 100% channel utilization, in terms of packets per second of a given size/rate? >From a pcap file full of radio-tap-level packets, can the channel usage be computed? (none of the tools I looked at a few years ago could give me a channel usage indication from an analysis of actual packets (with rates and timestamps)). -Aaron On Tue, Feb 9, 2016 at 4:02 AM, Dave T=C3=A4ht wrote: > Much more readable than the spec! > > http://chimera.labs.oreilly.com/books/1234000001739/ch03.html > > I still keep hoping for a comprehensive list (or a tool) for timings for > every possible operation across all the 802.11 standards. Trying to > figure out how long things take "on the wire" makes my brain spin. > > _______________________________________________ > Cerowrt-devel mailing list > Cerowrt-devel@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/cerowrt-devel > --089e013a2268b4741e052b49928b Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
I've often wanted the same thing: =C2=A0What's the= time-length of given packets (using various transmission rates), and the i= nter-packet delays, etc.=C2=A0 What _is_ 100% channel utilization, in terms= of packets per second of a given size/rate?

From a pcap= file full of radio-tap-level packets, can the channel usage be computed? = =C2=A0(none of the tools I looked at a few years ago could give me a channe= l usage indication from an analysis of actual packets (with rates and times= tamps)).

-Aaron

On Tue, Feb 9, 2016 at 4:02 AM, Dave T= =C3=A4ht <dave@taht.net> wrote:
http://chimera.labs.oreilly.com/books/1= 234000001739/ch03.html

I still keep hoping for a comprehensive list (or a tool) for timings for every possible operation across all the 802.11 standards. Trying to
figure out how long things take "on the wire" makes my brain spin= .

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Cerowrt-devel mailing list
Cerowrt-devel@lists.= bufferbloat.net
https://lists.bufferbloat.net/listinfo/cerowrt-d= evel

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