Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 23 Oct 2002 10:58:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 23 Oct 2002 10:58:21 -0400 Received: from e31.co.us.ibm.com ([32.97.110.129]:42744 "EHLO e31.co.us.ibm.com") by vger.kernel.org with ESMTP id ; Wed, 23 Oct 2002 10:58:21 -0400 Message-ID: <3DB6B96F.A0DE47BF@us.ibm.com> Date: Wed, 23 Oct 2002 07:59:59 -0700 From: Nivedita Singhvi X-Mailer: Mozilla 4.72 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: bert hubert CC: Roy Sigurd Karlsbakk , netdev@oss.sgi.com, Kernel mailing list Subject: Re: [RESEND] tuning linux for high network performance? References: <200210231218.18733.roy@karlsbakk.net> <200210231306.18422.roy@karlsbakk.net> <20021023130101.GA646@outpost.ds9a.nl> 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: 850 Lines: 22 bert hubert wrote: > > ...adding the whole profile output - sorted by the first column this time... > > > > 905182 total 0.4741 > > 121426 csum_partial_copy_generic 474.3203 > > 93633 default_idle 1800.6346 > > 74665 do_wp_page 111.1086 > > Perhaps the 'copy' also entails grabbing the page from disk, leading to > inflated csum_partial_copy_generic stats? I think this is strictly a copy from user space->kernel and vice versa. This shouldnt include the disk access etc. thanks, Nivedita - 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/