From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from masada.superduper.net (unknown [IPv6:2001:ba8:1f1:f263::2]) (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 74F3321F356 for ; Wed, 22 Apr 2015 15:20:54 -0700 (PDT) Received: from 184-23-135-132.dedicated.static.sonic.net ([184.23.135.132] helo=[10.3.77.26]) by masada.superduper.net with esmtpsa (TLS1.0:RSA_ARCFOUR_MD5:128) (Exim 4.80) (envelope-from ) id 1Yl30Y-0006gn-P3; Wed, 22 Apr 2015 23:20:41 +0100 From: Simon Barber To: Eric Dumazet , Rick Jones Date: Wed, 22 Apr 2015 15:20:33 -0700 Message-ID: <14ce337d3c8.27f7.e972a4f4d859b00521b2b659602cb2f9@superduper.net> In-Reply-To: <1429739215.18561.151.camel@edumazet-glaptop2.roam.corp.google.com> References: <20150422191056.9C7AC406057@ip-64-139-1-69.sjc.megapath.net> <1429736552.18561.144.camel@edumazet-glaptop2.roam.corp.google.com> <55380D28.5080100@hp.com> <1429739215.18561.151.camel@edumazet-glaptop2.roam.corp.google.com> User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 AquaMail/1.5.0.19 (build: 2100846) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Score: -2.9 (--) 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 22:21:22 -0000 Wouldn't the LOWAT setting be much easier for applications to use if it was set in estimated time (ie time it will take to deliver the data) rather than bytes? Simon Sent with AquaMail for Android http://www.aqua-mail.com On April 22, 2015 2:47:34 PM Eric Dumazet wrote: > On Wed, 2015-04-22 at 14:05 -0700, Rick Jones wrote: > > On 04/22/2015 02:02 PM, Eric Dumazet wrote: > > > Yeah, the real nice thing is TCP_NOTSENT_LOWAT added in linux-3.12 > > > > Don't go telling Dave about that, he wants me to put too much into > > netperf as it is!-) > > Note that one can also set a sysctl, in case netperf author does not > want to change its baby ;) > > echo 131072 >/proc/sys/net/ipv4/tcp_notsent_lowat > > > > _______________________________________________ > Bloat mailing list > Bloat@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/bloat