From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761833AbYDOIS3 (ORCPT ); Tue, 15 Apr 2008 04:18:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754758AbYDOISK (ORCPT ); Tue, 15 Apr 2008 04:18:10 -0400 Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:39460 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1755387AbYDOISJ (ORCPT ); Tue, 15 Apr 2008 04:18:09 -0400 Date: Tue, 15 Apr 2008 01:18:10 -0700 (PDT) Message-Id: <20080415.011810.178212948.davem@davemloft.net> To: andi@firstfloor.org Cc: vgusev@openvz.org, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org Subject: Re: [RFC][PATCH][NET] Fix never pruned tcp out-of-order queue From: David Miller In-Reply-To: <87iqyjttz3.fsf@basil.nowhere.org> References: <87mynvtuoj.fsf@basil.nowhere.org> <20080415.010131.156668601.davem@davemloft.net> <87iqyjttz3.fsf@basil.nowhere.org> X-Mailer: Mew version 5.2 on Emacs 22.1 / Mule 5.0 (SAKAKI) 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 From: Andi Kleen Date: Tue, 15 Apr 2008 10:14:56 +0200 > The main difference seems to be that > sk_rmem_schedule/__sk_mem_schedule is called more often, but it is > unclear how this affects the ooo pruning which only checks > the queue length anyways. tcp_data_queue() would not do the tcp_prune_ofo_queue() in some cases, it's the whole point of the patch.