Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265672AbUFITRA (ORCPT ); Wed, 9 Jun 2004 15:17:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265736AbUFITRA (ORCPT ); Wed, 9 Jun 2004 15:17:00 -0400 Received: from email.careercast.com ([216.39.101.233]:3784 "HELO email.careercast.com") by vger.kernel.org with SMTP id S265672AbUFITQ6 (ORCPT ); Wed, 9 Jun 2004 15:16:58 -0400 Date: Wed, 9 Jun 2004 12:16:56 -0700 Subject: Re: slow down in 2.6 vs 2.4 Content-Type: text/plain; charset=US-ASCII; format=flowed Mime-Version: 1.0 (Apple Message framework v553) From: Clint Byrum To: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 7bit In-Reply-To: <20040609033513.76754.qmail@web51807.mail.yahoo.com> Message-Id: <92811A6A-BA49-11D8-882A-000A95730E92@spamaps.org> X-Mailer: Apple Mail (2.553) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1583 Lines: 50 On Tuesday, June 8, 2004, at 08:35 PM, Phy Prabab wrote: > Hello! > > Over the last two days I have been struggling with > understanding why 2.6.x kernel is slower than > 2.4.21/23 kernels. I think I have a test case which > demostrates this issue. > Phy, you and I have corresponded off list. I think we are experiencing the same thing... > > 2.4.21: > 323.68user 56.07system 6:35.77elapsed 95%CPU > (0avgtext+0avgdata 0maxresident)k > 0inputs+0outputs (3138783major+3818347minor)pagefaults > 0swaps Is there any way to get similar numbers system wide on 2.4? This exists for 2.6.x, and the latest sysstat shows it with sar -B, but as the sar manpage states, the fault/s numbers are not available on 2.4. :( Stats for a recent period: Linux 2.4.23 (xxx) 06/09/2004 11:40:00 AM pgpgin/s pgpgout/s fault/s majflt/s 11:50:00 AM 17.52 72.34 0.00 0.00 12:00:00 PM 20.93 65.06 0.00 0.00 Average: 19.22 68.70 0.00 0.00 Linux 2.6.6 (yyy) 06/09/04 11:40:00 pgpgin/s pgpgout/s fault/s majflt/s 11:50:00 70.68 81.13 13756.37 0.02 12:00:00 89.22 81.82 11598.21 0.03 Average: 79.95 81.48 12676.43 0.03 Thats from two different boxes.. see my earlier message this week for an explanation of the setup. - 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/