From owner-svn-src-user@FreeBSD.ORG  Mon Dec  3 22:20:56 2012
Return-Path: <owner-svn-src-user@FreeBSD.ORG>
Delivered-To: svn-src-user@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
 by hub.freebsd.org (Postfix) with ESMTP id 013B4A4C;
 Mon,  3 Dec 2012 22:20:56 +0000 (UTC)
 (envelope-from sobomax@sippysoft.com)
Received: from mail.sippysoft.com (hub.sippysoft.com [174.36.24.17])
 by mx1.freebsd.org (Postfix) with ESMTP id C11F08FC08;
 Mon,  3 Dec 2012 22:20:55 +0000 (UTC)
Received: from s173-180-43-49.bc.hsia.telus.net ([173.180.43.49]
 helo=[192.168.22.32])
 by mail.sippysoft.com with esmtpsa (TLSv1:DHE-RSA-CAMELLIA256-SHA:256)
 (Exim 4.80 (FreeBSD)) (envelope-from <sobomax@sippysoft.com>)
 id 1TfeNi-0003VS-An; Mon, 03 Dec 2012 14:20:54 -0800
Message-ID: <50BD25C0.6060403@FreeBSD.org>
Date: Mon, 03 Dec 2012 14:20:48 -0800
From: Maxim Sobolev <sobomax@FreeBSD.org>
Organization: Sippy Software, Inc.
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64;
 rv:16.0) Gecko/20121026 Thunderbird/16.0.2
MIME-Version: 1.0
To: Alfred Perlstein <bright@mu.org>
Subject: Re: Davide, please comment, LOR in driver?
References: <201211120847.qAC8lEAM086331@svn.freebsd.org>
 <50A0D420.4030106@freebsd.org> <0039CD42-C909-41D0-B0A7-7DFBC5B8D839@mu.org>
 <50A1206B.1000200@freebsd.org> <3D373186-09E2-48BC-8451-E4439F99B29D@mu.org>
 <50BC4EF6.8040902@FreeBSD.org> <50BC61A1.9040604@freebsd.org>
 <50BC6EF9.4040706@FreeBSD.org>
 <alpine.BSF.2.00.1212030937160.18806@fledge.watson.org>
 <50BC74DB.2080307@FreeBSD.org> <50BCE8CB.5020603@mu.org>
In-Reply-To: <50BCE8CB.5020603@mu.org>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Sender: sobomax@sippysoft.com
X-ssp-trusted: yes
Cc: Davide Italiano <davide@freebsd.org>, Andre Oppermann <andre@freebsd.org>,
 "src-committers@freebsd.org" <src-committers@freebsd.org>,
 Robert Watson <rwatson@FreeBSD.org>,
 "svn-src-user@freebsd.org" <svn-src-user@freebsd.org>
X-BeenThere: svn-src-user@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: "SVN commit messages for the experimental &quot; user&quot;
 src tree" <svn-src-user.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-src-user>,
 <mailto:svn-src-user-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-user>
List-Post: <mailto:svn-src-user@freebsd.org>
List-Help: <mailto:svn-src-user-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-user>,
 <mailto:svn-src-user-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 03 Dec 2012 22:20:56 -0000

On 12/3/2012 10:00 AM, Alfred Perlstein wrote:
> We've recently used WITNESS based kernels and found some LORs in the
> stack/driver.

How heavy might it be for our number of mbuf activity? Our systems 
usually peak at 25-30% of system CPU, about the same about of user 
(8core, 55xx, 56xx servers)?

> Davide was on point for this.  Afaik, this was on a 9.0 based system.
>
> Davide, can you please comment?

Thanks, any help is appreciated!

-Maxim