Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965187AbWBHCz4 (ORCPT ); Tue, 7 Feb 2006 21:55:56 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965188AbWBHCz4 (ORCPT ); Tue, 7 Feb 2006 21:55:56 -0500 Received: from relay01.mail-hub.dodo.com.au ([203.220.32.149]:29326 "EHLO relay01.mail-hub.dodo.com.au") by vger.kernel.org with ESMTP id S965187AbWBHCzz (ORCPT ); Tue, 7 Feb 2006 21:55:55 -0500 From: Grant Coady To: Con Kolivas Cc: linux-kernel@vger.kernel.org Subject: Re: 2.6 vs 2.4, ssh terminal slowdown Date: Wed, 08 Feb 2006 13:55:53 +1100 Organization: http://bugsplatter.mine.nu/ Reply-To: gcoady@gmail.com Message-ID: <24niu1hrom6udfa2km18b8bagad62kjamc@4ax.com> References: <200602081335.18256.kernel@kolivas.org> In-Reply-To: <200602081335.18256.kernel@kolivas.org> X-Mailer: Forte Agent 2.0/32.652 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: 1500 Lines: 61 On Wed, 8 Feb 2006 13:35:18 +1100, Con Kolivas wrote: >On Wed, 8 Feb 2006 01:11 pm, Grant Coady wrote: >> Hi there, >> >> grant@deltree:~$ uname -r >> 2.6.15.3a >> grant@deltree:~$ time grep -v 192\.168\. /var/log/apache/access_log| cut >> -c-95 ... >> 2006-02-08 12:38:13 +1100: bugsplatter.mine.nu 193.196.182.215 "GET >> /test/linux-2.6/tosh/ HTTP/ >> >> real 0m8.537s >> user 0m0.970s >> sys 0m1.100s >> >> --> reboot to 2.4.32-hf32.2 >> >> grant@deltree:~$ uname -r >> 2.4.32-hf32.2 >> grant@deltree:~$ time grep -v 192\.168\. /var/log/apache/access_log| cut >> -c-95 ... >> 2006-02-08 12:38:13 +1100: bugsplatter.mine.nu 193.196.182.215 "GET >> /test/linux-2.6/tosh/ HTTP/ >> >> real 0m2.271s >> user 0m0.730s >> sys 0m0.540s >> >> Still a 4:1 slowdown, machine .config and dmesg info: >> http://bugsplatter.mine.nu/test/boxen/deltree/ > >What happens if you add "| cat" on the end of your command? It gets faster with 2.4.32-hf32.2 by a little bit (I forgot to copy) reboot to 2.6.15.3a, without... real 0m8.737s user 0m1.030s sys 0m1.200s with... oh shit / surprise!! real 0m1.861s user 0m0.560s sys 0m0.370s What is that telling me / you / us? Thanks, Grant > >Cheers, >Con - 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/