From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: cat /proc/net/tcp takes 0.5 seconds on x86_64 Date: Wed, 27 Aug 2008 02:39:31 -0700 (PDT) Message-ID: <20080827.023931.114686718.davem@davemloft.net> References: <48B51AE9.5080709@hhs.nl> <20080827.020556.90577040.davem@davemloft.net> <48B52223.5010606@hhs.nl> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: dada1@cosmosbay.com, davej@redhat.com, netdev@vger.kernel.org To: j.w.r.degoede@hhs.nl Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:42553 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1754436AbYH0Jjf (ORCPT ); Wed, 27 Aug 2008 05:39:35 -0400 In-Reply-To: <48B52223.5010606@hhs.nl> Sender: netdev-owner@vger.kernel.org List-ID: From: Hans de Goede Date: Wed, 27 Aug 2008 11:45:07 +0200 > I'm sorry, but I didn't have the feeling I had many options > left. I've reported a serious performance regression and all the > answer I've been getting sofar is: "well if that is slow don't do > that you silly" which is anything but a satisfying answer. Eric said merely that applications can get better performance by using the netlink socket dumping interfaces. It was "for your information", rather than being suggested as a fix for the bug. People have given other forms of useful feedback as well, and the bug seems to be being looked into.