Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752017AbWISTrr (ORCPT ); Tue, 19 Sep 2006 15:47:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752010AbWISTrr (ORCPT ); Tue, 19 Sep 2006 15:47:47 -0400 Received: from dsl027-180-168.sfo1.dsl.speakeasy.net ([216.27.180.168]:32197 "EHLO sunset.davemloft.net") by vger.kernel.org with ESMTP id S1752009AbWISTrq (ORCPT ); Tue, 19 Sep 2006 15:47:46 -0400 Date: Tue, 19 Sep 2006 12:47:51 -0700 (PDT) Message-Id: <20060919.124751.24100694.davem@davemloft.net> To: kuznet@ms2.inr.ac.ru Cc: master@sectorb.msk.ru, ak@suse.de, hawk@diku.dk, harry@atmos.washington.edu, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: Network performance degradation from 2.6.11.12 to 2.6.16.20 From: David Miller In-Reply-To: <20060918220038.GB14322@ms2.inr.ac.ru> References: <200609181850.22851.ak@suse.de> <20060918211759.GB31746@tentacle.sectorb.msk.ru> <20060918220038.GB14322@ms2.inr.ac.ru> X-Mailer: Mew version 4.2 on Emacs 21.4 / 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 X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 749 Lines: 23 From: Alexey Kuznetsov Date: Tue, 19 Sep 2006 02:00:38 +0400 > * I do not undestand what the hell dhcp needs timestamps for. I can't even find a reference to SIOCGSTAMP in the dhcp-2.0pl5 or dhcp3-3.0.3 sources shipped in Ubuntu. But I will note that tpacket_rcv() expects to always get valid timestamps in the SKB, it does a: if (skb->tstamp.off_sec == 0) { __net_timestamp(skb); sock_enable_timestamp(sk); } so that it can fill in the h->tp_sec and h->tp_usec fields. - 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/