Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751057AbWISTl1 (ORCPT ); Tue, 19 Sep 2006 15:41:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751061AbWISTl1 (ORCPT ); Tue, 19 Sep 2006 15:41:27 -0400 Received: from dsl027-180-168.sfo1.dsl.speakeasy.net ([216.27.180.168]:26280 "EHLO sunset.davemloft.net") by vger.kernel.org with ESMTP id S1751037AbWISTl0 (ORCPT ); Tue, 19 Sep 2006 15:41:26 -0400 Date: Tue, 19 Sep 2006 12:41:31 -0700 (PDT) Message-Id: <20060919.124131.130617144.davem@davemloft.net> To: master@sectorb.msk.ru Cc: kuznet@ms2.inr.ac.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: <20060918220331.GB32520@tentacle.sectorb.msk.ru> References: <20060918211759.GB31746@tentacle.sectorb.msk.ru> <20060918220038.GB14322@ms2.inr.ac.ru> <20060918220331.GB32520@tentacle.sectorb.msk.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: 699 Lines: 18 From: "Vladimir B. Savkin" Date: Tue, 19 Sep 2006 02:03:31 +0400 > On Tue, Sep 19, 2006 at 02:00:38AM +0400, Alexey Kuznetsov wrote: > > * I do see get_offset_pmtmr() in top lines of profile. That's scary enough. > > I had it at the very top line. That is just rediculious. You can "fix" the networking by making it timestamp less but what about things like just normal X11 clients that call gettimeofday() at very high rates? - 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/