From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-14-iad.dyndns.com (mxout-099-iad.mailhop.org [216.146.32.99]) by lists.bufferbloat.net (Postfix) with ESMTP id B2CEE2E06FF for ; Fri, 4 Feb 2011 10:58:47 -0800 (PST) Received: from scan-12-iad.mailhop.org (scan-12-iad.local [10.150.0.209]) by mail-14-iad.dyndns.com (Postfix) with ESMTP id 8B7A244BAFC for ; Fri, 4 Feb 2011 18:58:45 +0000 (UTC) X-Spam-Score: 0.0 () X-Mail-Handler: MailHop by DynDNS X-Originating-IP: 134.157.0.129 Received: from shiva.jussieu.fr (shiva.jussieu.fr [134.157.0.129]) by mail-14-iad.dyndns.com (Postfix) with ESMTP id 073BA44BA90 for ; Fri, 4 Feb 2011 18:58:41 +0000 (UTC) Received: from hydrogene.pps.jussieu.fr (hydrogene.pps.jussieu.fr [134.157.168.1]) by shiva.jussieu.fr (8.14.4/jtpda-5.4) with ESMTP id p14IwCjU093922 ; Fri, 4 Feb 2011 19:58:25 +0100 (CET) X-Ids: 165 Received: from lanthane.pps.jussieu.fr (lanthane.pps.jussieu.fr [134.157.168.57]) by hydrogene.pps.jussieu.fr (8.13.4/jtpda-5.4) with ESMTP id p14IwBY2030523 ; Fri, 4 Feb 2011 19:58:11 +0100 Received: from jch by lanthane.pps.jussieu.fr with local (Exim 4.72) (envelope-from ) id 1PlQrD-0001xr-Fo; Fri, 04 Feb 2011 19:58:11 +0100 From: Juliusz Chroboczek To: Jim Gettys References: <87k4hgdte9.fsf@trurl.pps.jussieu.fr> <4D4C05A3.3000901@freedesktop.org> <871v3nemck.fsf_-_@trurl.pps.jussieu.fr> <4D4C447A.6070307@freedesktop.org> Date: Fri, 04 Feb 2011 19:58:11 +0100 In-Reply-To: <4D4C447A.6070307@freedesktop.org> (Jim Gettys's message of "Fri, 04 Feb 2011 13:24:58 -0500") Message-ID: <7id3n78w58.fsf@lanthane.pps.jussieu.fr> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Miltered: at jchkmail.jussieu.fr with ID 4D4C4C44.000 by Joe's j-chkmail (http : // j-chkmail dot ensmp dot fr)! X-j-chkmail-Enveloppe: 4D4C4C44.000/134.157.168.1/hydrogene.pps.jussieu.fr/hydrogene.pps.jussieu.fr/ Cc: bloat@lists.bufferbloat.net Subject: Re: [Bloat] Buffer bloat at the sender X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Feb 2011 18:58:48 -0000 > And I don't know if there is any way to signal back pressure to UDP > based protocols Sendmsg returns EAGAIN or blocks, and it's up to the application to deal with it. Or am I missing something? --Juliusz