From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-iy0-f171.google.com (mail-iy0-f171.google.com [209.85.210.171]) (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 993D6200648 for ; Sat, 21 May 2011 08:56:56 -0700 (PDT) Received: by iyi20 with SMTP id 20so5695636iyi.16 for ; Sat, 21 May 2011 09:08:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=J+WyG5EO8s/PnB6qJaDVwQDbCqmIFBkfw/KYw1VPf6I=; b=fb+e4dcHy8cJuqmhSdxbzghhxu0lenY2p8IruPcNz1llGE/3u+GBvHQp3Gqy9VMAA/ UIRyr9bbIYskl3WCoEAeBVvo31khXdJv5gAn5027s7fzK+aSNlq/5suzsuTW2pAgT18G X3HQjuFrCasj/GHo/19x2VlL93P17WvlhyWzY= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=OxKT4h+f115J99OkbA2a7o1iuxnb8ski7KXNlaBJ1d7rgSt9xa0MDTNBhwVuEGkxto C2J03wmO7lEQDS8qrvotr8oyTLahrdNURaCD8XSq+k4JaWhWh7cydkpnfPqQBYOz2I0I jCk8n+ogFH57x1HKqxOhfyURjSS1nyP/KwyW4= MIME-Version: 1.0 Received: by 10.43.47.195 with SMTP id ut3mr6015789icb.426.1305994139496; Sat, 21 May 2011 09:08:59 -0700 (PDT) Received: by 10.231.31.201 with HTTP; Sat, 21 May 2011 09:08:59 -0700 (PDT) In-Reply-To: References: <9EFCAA58-92E8-45FD-9BE4-F213564264E6@cc.gatech.edu> <5C1FCBFC-B007-4B01-A7BA-6CCD5523DC34@cc.gatech.edu> <72E30C46-3045-4FBA-A464-C7120C3FECE2@gatech.edu> Date: Sat, 21 May 2011 10:08:59 -0600 Message-ID: From: Dave Taht To: Srikanth Sundaresan Content-Type: multipart/alternative; boundary=bcaec5299591c3703d04a3cb7433 Cc: bismark-devel@lists.bufferbloat.net Subject: Re: [Bismark-devel] about ready to do another build X-BeenThere: bismark-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: BISMark related software development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 21 May 2011 15:56:56 -0000 --bcaec5299591c3703d04a3cb7433 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On Sat, May 21, 2011 at 9:48 AM, Srikanth Sundaresan w= rote: > I do not have a problem with it when we know the effective bandwidth. My > question is, what when do not? We cannot rely on volunteers to give us > reliable information on that. > > I say we turn it *on only while testing*. That too, after we get an idea > about each user's bandwidth. THis is feature that, in its current form ne= eds > to be tailored to each user. It is not a good idea to give everyone a > default setting - as I mentioned in my previous email, unless we hit bull= s > eye (unlikely), it is either crippling, or useless. > > It could potentially seriously downgrade user experience. > > What part about 800ms latencies under load without QoS isn't about a degraded user experience? Dave T=E4ht SKYPE: davetaht US Tel: 1-239-829-5608 http://the-edge.blogspot.com --bcaec5299591c3703d04a3cb7433 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable

On Sat, May 21, 2011 at 9:48 AM, Srikant= h Sundaresan <s= rikanth@gatech.edu> wrote:
I do not have a problem with it when we know the effective bandwidth. My qu= estion is, what when do not? We cannot rely on volunteers to give us reliab= le information on that.

I say we turn it *on only while testing*. That too, after we get an idea ab= out each user's bandwidth. THis is feature that, in its current form ne= eds to be tailored to each user. It is not a good idea to give everyone a d= efault setting - as I mentioned in my previous email, unless we hit bulls e= ye (unlikely), it is either crippling, or useless.
=A0
It could potentially seriously downgrade user experience.


What part about 80= 0ms latencies under load without QoS isn't about=A0 a degraded user exp= erience?

Dave T=E4ht
SKYPE: davetaht
US Tel: 1-239= -829-5608
http://the-edge.= blogspot.com
--bcaec5299591c3703d04a3cb7433--