Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262233AbVCBJIv (ORCPT ); Wed, 2 Mar 2005 04:08:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262234AbVCBJIv (ORCPT ); Wed, 2 Mar 2005 04:08:51 -0500 Received: from fire.osdl.org ([65.172.181.4]:5550 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S262233AbVCBJIn (ORCPT ); Wed, 2 Mar 2005 04:08:43 -0500 Date: Wed, 2 Mar 2005 01:06:14 -0800 From: Andrew Morton To: Guillaume Thouvenin Cc: kaigai@ak.jp.nec.com, johnpol@2ka.mipt.ru, hadi@cyberus.ca, tgraf@suug.ch, marcelo.tosatti@cyclades.com, davem@redhat.com, jlan@sgi.com, lse-tech@lists.sourceforge.net, linux-kernel@vger.kernel.org, netdev@oss.sgi.com, elsa-devel@lists.sourceforge.net Subject: Re: [Lse-tech] Re: A common layer for Accounting packages Message-Id: <20050302010614.2a8bb483.akpm@osdl.org> In-Reply-To: <1109753893.8422.127.camel@frecb000711.frec.bull.fr> References: <4221E548.4000008@ak.jp.nec.com> <20050227140355.GA23055@logos.cnet> <42227AEA.6050002@ak.jp.nec.com> <1109575236.8549.14.camel@frecb000711.frec.bull.fr> <20050227233943.6cb89226.akpm@osdl.org> <1109592658.2188.924.camel@jzny.localdomain> <20050228132051.GO31837@postel.suug.ch> <1109598010.2188.994.camel@jzny.localdomain> <20050228135307.GP31837@postel.suug.ch> <1109599803.2188.1014.camel@jzny.localdomain> <20050228142551.GQ31837@postel.suug.ch> <1109604693.1072.8.camel@jzny.localdomain> <20050228191759.6f7b656e@zanzibar.2ka.mipt.ru> <1109665299.8594.55.camel@frecb000711.frec.bull.fr> <42247051.7070303@ak.jp.nec.com> <1109753893.8422.127.camel@frecb000711.frec.bull.fr> X-Mailer: Sylpheed version 0.9.7 (GTK+ 1.2.10; i386-redhat-linux-gnu) 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: 1567 Lines: 32 Guillaume Thouvenin wrote: > > So I ran the lmbench with three different kernels with the fork > connector patch I just sent. Results are attached at the end of the mail > and there are three different lines which are: > > o First line is a linux-2.6.11-rc4-mm1-cnfork > o Second line is a linux-2.6.11-rc4-mm1 > o Third line is a linux-2.6.11-rc4-mm1-cnfork with a user space > application. The user space application listened during 15h > and received 6496 messages. > > Each test has been ran only once. > > ... > ------------------------------------------------------------------------------ > Host OS Mhz null null open slct sig sig fork exec sh > call I/O stat clos TCP inst hndl proc proc proc > --------- ------------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- > account Linux 2.6.11- 2765 0.17 0.26 3.57 4.19 16.9 0.51 2.31 162. 629. 2415 > account Linux 2.6.11- 2765 0.16 0.26 3.56 4.17 17.6 0.50 2.30 163. 628. 2417 > account Linux 2.6.11- 2765 0.16 0.27 3.67 4.25 17.6 0.51 2.28 176. 664. 2456 This is the interesting bit, yes? 5-10% slowdown on fork is expected, but why was exec slower? What does "The user space application listened during 15h" mean? - 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/