Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754211Ab1CAESR (ORCPT ); Mon, 28 Feb 2011 23:18:17 -0500 Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:41386 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753414Ab1CAESQ (ORCPT ); Mon, 28 Feb 2011 23:18:16 -0500 Date: Mon, 28 Feb 2011 20:18:52 -0800 (PST) Message-Id: <20110228.201852.193726064.davem@davemloft.net> To: acahalan@gmail.com Cc: johnwheffner@gmail.com, linville@tuxdriver.com, eric.dumazet@gmail.com, jussi.kivilinna@mbnet.fi, swmike@swm.pp.se, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: txqueuelen has wrong units; should be time From: David Miller In-Reply-To: References: <20110228165501.GC2515@tuxdriver.com> X-Mailer: Mew version 6.3 on Emacs 23.1 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 581 Lines: 15 From: Albert Cahalan Date: Mon, 28 Feb 2011 23:11:13 -0500 > It sounds like you need a callback or similar, so that TCP can be > informed later that the drop has occurred. By that point we could have already sent an entire RTT's worth of data, or more. It needs to be synchronous, otherwise performance suffers. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/