From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f175.google.com (mail-wi0-f175.google.com [209.85.212.175]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id C4AD7208AC5 for ; Tue, 8 May 2012 20:56:06 -0700 (PDT) Received: by wibhj19 with SMTP id hj19so1270278wib.10 for ; Tue, 08 May 2012 20:56:04 -0700 (PDT) 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=to75NBoHaQ8RWYktQnidK5CXJHg+CaT0qUNAiNVpDbU=; b=y8lPULbPAjwywQOPWLBg8JfwK4aHzJNMTNvS7uePnUiXc6o1OPd5hkYmYZVN4U0+Ff WriXHVDGJGgg6J65VUQaxlWA9puiFGJ6VXoAp6n0wT+SKN262ok4DWkQxt+hLkJoVoNo u/RAlDRnLCHNuzc9Su2Uo+A5LbHqFVWjWJ9IikPlfcClkVTS/zHpqV/ND/eIFe4Rlb/n AgPZcrtF9LcAUwlKh+BFG9WDkKiEbAIGjyLSD5CkqW9zvsO+ItL4DWcb1+0Vafmjx/PI l0tZMlpsEdUer46Sdx1e/tUBnF//sZ8Bc2UpvbPJ79kGciB3jSgkvm1APRtPLme9pg4s /UEA== MIME-Version: 1.0 Received: by 10.216.142.226 with SMTP id i76mr3919272wej.28.1336535764371; Tue, 08 May 2012 20:56:04 -0700 (PDT) Received: by 10.223.112.66 with HTTP; Tue, 8 May 2012 20:56:04 -0700 (PDT) In-Reply-To: <4FA9E0CF.4040803@pollere.com> References: <4FA9E0CF.4040803@pollere.com> Date: Tue, 8 May 2012 20:56:04 -0700 Message-ID: From: Dave Taht To: Kathleen Nichols Content-Type: multipart/alternative; boundary=0016e6daa6377709a704bf927b5f Cc: codel@lists.bufferbloat.net Subject: Re: [Codel] The challenge X-BeenThere: codel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: CoDel AQM discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 May 2012 03:56:07 -0000 --0016e6daa6377709a704bf927b5f Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On Tue, May 8, 2012 at 8:13 PM, Kathleen Nichols wrote= : > > > On 5/8/12 6:04 PM, Dave Taht wrote: > > Both the acm queue article and jim's blog entry this morning were way > > above mensa's standards. > > But, omg, we are not saying this will solve everything. Neither am I! Figuring out what it can solve and what it can't is on the table. That's going to take quite some time, I think. Title of email was "The challenge". Next up is extensive real world tests and tweaking, more simulation, varied workloads. > And it's not > supposed > to be a scholarly paper, thank ghu > but a proposed solution to a real problem. Guess > Dave and Eric will let us know how real it is. > And andrew is looking at the wobble right now in the ns3 sim. He has some pretty graphs... I love to know if his model matches yours... I've held off on doing much, I have an unrelated bug that's killing me in reality and I figure eric has another version soon > We are still tweaking to make sure the streamlined code does what the > old simulator code does. Should be a small update shortly. > > Excellent. > > > > Nobody has attempted to explain the elegant simplicity of the > > algorithm itself in the inverse sqrt however! I have a good grip on > > it, and am trying, but can barely explain it to myself. Anyone else > > care to dig through the codel code and try to put it into english? > > The reason I referenced our ancient unpublished work on this in additon t= o > Matt Mathis's paper is that Van had some nice pictures and explanations i= n > there. > Ah. Lost in the footnotes. You mean redlight? The link on the acm queue to: http://www.cnaf.infn.it/~ferrari/papers/ispn/red_light_9_30.pdf is busted. We have a link to a mirror of that here: http://mirrors.bufferbloat.net/RelevantPapers/Red_in_a_different_light.pdf --=20 Dave T=E4ht SKYPE: davetaht US Tel: 1-239-829-5608 http://www.bufferbloat.net --0016e6daa6377709a704bf927b5f Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable

On Tue, May 8, 2012 at 8:13 PM, Kathleen= Nichols <nichols@pollere.com> wrote:


On 5/8/12 6:04 PM, Dave Taht wrote:
> Both the acm queue article and jim's blog entry this morning were = way
> above mensa's standards.

But, omg, we are not saying this will solve everything. =A0

Neither am I! Figuring out what it can solve and what it can= 9;t is on the table.

That's going to take quite some time, I thi= nk. Title of email was

"The challenge". Next up is extensive real world tests and tw= eaking, more simulation, varied workloads.

=A0
And it's not
supposed
to be a scholarly paper,

thank ghu
=A0
but a proposed solution to = a real problem. Guess
Dave and Eric will let us know how real it is.

And= andrew is looking at the wobble right now in the ns3 sim. He has some pret= ty graphs... I love to know if his model matches yours...

I've h= eld off on doing much, I have an unrelated bug that's killing me in rea= lity and
I figure eric has another version soon


We are still tweaking to make sure the streamlined code does what the
old simulator code does. Should be a small update shortly.


Excellent.
=A0
>
> Nobody has attempted to explain the elegant simplicity of the
> algorithm itself in the inverse sqrt however! =A0I have a good grip on=
> it, and am trying, but can barely explain it to myself. Anyone else > care to dig through the codel code and try to put it into english?

The reason I referenced our ancient unpublished work on this in addit= on to
Matt Mathis's paper is that Van had some nice pictures and explanations= in
there.

Ah. Lost in the footnotes. You mean redligh= t?

The link on the acm queue to:

http://www.cnaf.infn.it/~fe= rrari/papers/ispn/red_light_9_30.pdf is busted.

We have a link to a mirror of that here:

http://mirr= ors.bufferbloat.net/RelevantPapers/Red_in_a_different_light.pdf


--
Dave T=E4ht
SKYPE: davetaht
US Tel: 1-239-829-= 5608
http://www= .bufferbloat.net
--0016e6daa6377709a704bf927b5f--