From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cassarossa.samfundet.no (cassarossa.samfundet.no [IPv6:2001:67c:29f4::29]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (Client did not present a certificate) by huchra.bufferbloat.net (Postfix) with ESMTPS id 38285201113 for ; Wed, 22 Apr 2015 14:07:47 -0700 (PDT) Received: from pannekake.samfundet.no ([2001:67c:29f4::50] ident=unknown) by cassarossa.samfundet.no with esmtps (TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1Yl1rw-00079x-LP; Wed, 22 Apr 2015 23:07:40 +0200 Received: from sesse by pannekake.samfundet.no with local (Exim 4.80) (envelope-from ) id 1Yl1rw-0009Eg-Eo; Wed, 22 Apr 2015 23:07:40 +0200 Date: Wed, 22 Apr 2015 23:07:40 +0200 From: "Steinar H. Gunderson" To: Eric Dumazet Message-ID: <20150422210740.GA31348@sesse.net> References: <20150422191056.9C7AC406057@ip-64-139-1-69.sjc.megapath.net> <1429736552.18561.144.camel@edumazet-glaptop2.roam.corp.google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <1429736552.18561.144.camel@edumazet-glaptop2.roam.corp.google.com> X-Operating-System: Linux 3.18.4 on a x86_64 User-Agent: Mutt/1.5.21 (2010-09-15) Cc: Hal Murray , bloat Subject: Re: [Bloat] SO_SNDBUF and SO_RCVBUF 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: Wed, 22 Apr 2015 21:08:17 -0000 On Wed, Apr 22, 2015 at 02:02:32PM -0700, Eric Dumazet wrote: > Yeah, the real nice thing is TCP_NOTSENT_LOWAT added in linux-3.12 But this is only for when your data could change underway, right? Like, not relevant for sending one big file, but might be relevant for e.g. VNC (or someone mentioned the usecase of HTTP/2, where a high-priority request might come in, which you don't want buried behind a megabyte of stuff in the send queue). /* Steinar */ -- Homepage: http://www.sesse.net/