From owner-freebsd-current@FreeBSD.ORG Thu Apr 12 12:51:48 2007 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 18EFE16A404 for ; Thu, 12 Apr 2007 12:51:48 +0000 (UTC) (envelope-from rrs@cisco.com) Received: from sj-iport-3.cisco.com (sj-iport-3-in.cisco.com [171.71.176.72]) by mx1.freebsd.org (Postfix) with ESMTP id E5BA913C45A for ; Thu, 12 Apr 2007 12:51:47 +0000 (UTC) (envelope-from rrs@cisco.com) Received: from sj-dkim-1.cisco.com ([171.71.179.21]) by sj-iport-3.cisco.com with ESMTP; 12 Apr 2007 05:51:48 -0700 X-IronPort-AV: i="4.14,401,1170662400"; d="scan'208"; a="477736183:sNHT48466796" Received: from sj-core-1.cisco.com (sj-core-1.cisco.com [171.71.177.237]) by sj-dkim-1.cisco.com (8.12.11/8.12.11) with ESMTP id l3CCplN4015867; Thu, 12 Apr 2007 05:51:47 -0700 Received: from xbh-sjc-231.amer.cisco.com (xbh-sjc-231.cisco.com [128.107.191.100]) by sj-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id l3CCplMF020778; Thu, 12 Apr 2007 12:51:47 GMT Received: from xfe-sjc-211.amer.cisco.com ([171.70.151.174]) by xbh-sjc-231.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.1830); Thu, 12 Apr 2007 05:51:47 -0700 Received: from [127.0.0.1] ([171.68.225.134]) by xfe-sjc-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.1830); Thu, 12 Apr 2007 05:51:46 -0700 Message-ID: <461E2C07.5000503@cisco.com> Date: Thu, 12 Apr 2007 08:54:31 -0400 From: Randall Stewart User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.8) Gecko/20061029 FreeBSD/i386 SeaMonkey/1.0.6 MIME-Version: 1.0 To: Ivan Voras References: <461E0078.3050001@cisco.com> <20070412114344.G64803@fledge.watson.org> <461E1D4E.3090806@cisco.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 12 Apr 2007 12:51:46.0815 (UTC) FILETIME=[546BF8F0:01C77D01] DKIM-Signature: v=0.5; a=rsa-sha256; q=dns/txt; l=588; t=1176382307; x=1177246307; c=relaxed/simple; s=sjdkim1004; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=rrs@cisco.com; z=From:=20Randall=20Stewart=20 |Subject:=20Re=3A=20CPU=20utilization |Sender:=20; bh=ZkbiD1OrAX5rOhTUFFHfccgO6F15L+S3r9SokuL+zJs=; b=RGxKWnWYPSG/do9o+ymsXidOMWPTdknvIDNJFurUKTU0lbtijs0i0FL4KKAqm+BcEnUQsSSz 9Ks9rRlJ5QoVzxxLyyC59Zd3uMXRvGvynkeeqEDg1LC+pCrvap2wKuD6s7G2BoWKlXwx/5+T6O 8SukD5DrrKuVpVcbMcYNxCJZ4=; Authentication-Results: sj-dkim-1; header.From=rrs@cisco.com; dkim=pass (sig from cisco.com/sjdkim1004 verified; ); Cc: freebsd-current@freebsd.org Subject: Re: CPU utilization X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Apr 2007 12:51:48 -0000 Ivan Voras wrote: > Randall Stewart wrote: > >> a) I must have a lock contention issue on the sending >> side. > > I always wonder how cache trashing influences this kind of performance. > If you have the time (it's probably a shot in the dark), can you pin > most of the sender side on one CPU and try benchmarking it? > > Sure.. dumb question though.. whats the magic cookie to pin something on a cpu.. is it a system call or is there a "shell" tool that will do it? R -- Randall Stewart NSSTG - Cisco Systems Inc. 803-345-0369 803-317-4952 (cell)