From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: [PATCH net-next] tcp: TCP_NOSENT_LOWAT socket option Date: Tue, 23 Jul 2013 08:28:07 -0700 Message-ID: <1374593287.3449.0.camel@edumazet-glaptop> References: <1374520422.4990.33.camel@edumazet-glaptop> <51ED9957.9070107@hp.com> <1374533052.4990.89.camel@edumazet-glaptop> <51EDBB8B.2000805@hp.com> <1374538422.4990.99.camel@edumazet-glaptop> <51EEA04F.8060708@hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: David Miller , netdev , Yuchung Cheng , Neal Cardwell , Michael Kerrisk To: Rick Jones Return-path: Received: from mail-pa0-f54.google.com ([209.85.220.54]:56325 "EHLO mail-pa0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757467Ab3GWP2K (ORCPT ); Tue, 23 Jul 2013 11:28:10 -0400 Received: by mail-pa0-f54.google.com with SMTP id kx10so8512074pab.13 for ; Tue, 23 Jul 2013 08:28:10 -0700 (PDT) In-Reply-To: <51EEA04F.8060708@hp.com> Sender: netdev-owner@vger.kernel.org List-ID: On Tue, 2013-07-23 at 08:25 -0700, Rick Jones wrote: > On 07/22/2013 05:13 PM, Eric Dumazet wrote: > > On Mon, 2013-07-22 at 16:08 -0700, Rick Jones wrote: > >> By the way, does this affect sendfile() or splice()? > > > > Sure : Patch intercepts sk_stream_memory_free() for all its callers. > > > > 10Gb link 'experiment with sendfile()' : > > Why not the same 20 Gb (?) link you used with the other experiments? Why not ? I have different kind of links ;)