From owner-cvs-all@FreeBSD.ORG  Wed Feb 23 08:58:15 2005
Return-Path: <owner-cvs-all@FreeBSD.ORG>
Delivered-To: cvs-all@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id 3750816A4CE; Wed, 23 Feb 2005 08:58:15 +0000 (GMT)
Received: from relay.bestcom.ru (relay.bestcom.ru [217.72.144.5])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id 3076F43D45; Wed, 23 Feb 2005 08:58:14 +0000 (GMT)
	(envelope-from glebius@freebsd.org)
Received: from cell.sick.ru (root@cell.sick.ru [217.72.144.68])
	by relay.bestcom.ru (8.13.1/8.12.9) with ESMTP id j1N8wC9f050888
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL);
	Wed, 23 Feb 2005 11:58:12 +0300 (MSK)
	(envelope-from glebius@freebsd.org)
Received: from cell.sick.ru (glebius@localhost [127.0.0.1])
	by cell.sick.ru (8.13.1/8.12.8) with ESMTP id j1N8wBnu021356
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO);
	Wed, 23 Feb 2005 11:58:12 +0300 (MSK)
	(envelope-from glebius@freebsd.org)
Received: (from glebius@localhost)
	by cell.sick.ru (8.13.1/8.13.1/Submit) id j1N8wBun021355;
	Wed, 23 Feb 2005 11:58:11 +0300 (MSK)
	(envelope-from glebius@freebsd.org)
X-Authentication-Warning: cell.sick.ru: glebius set sender to
	glebius@freebsd.org using -f
Date: Wed, 23 Feb 2005 11:58:11 +0300
From: Gleb Smirnoff <glebius@freebsd.org>
To: Ruslan Ermilov <ru@freebsd.org>
Message-ID: <20050223085811.GB21254@cell.sick.ru>
References: <200502230413.j1N4DBKH008870@repoman.freebsd.org>
	<20050223071246.GA73994@ip.net.ua> <20050223075748.GB20887@cell.sick.ru>
	<20050223083639.GA88262@ip.net.ua>
Mime-Version: 1.0
Content-Type: text/plain; charset=koi8-r
Content-Disposition: inline
In-Reply-To: <20050223083639.GA88262@ip.net.ua>
User-Agent: Mutt/1.5.6i
X-Virus-Scanned: ClamAV version devel-20050125, clamav-milter version 0.80ff
	on relay.bestcom.ru
X-Virus-Status: Clean
cc: Tom Rhodes <trhodes@freebsd.org>
cc: src-committers@freebsd.org
cc: cvs-all@freebsd.org
cc: cvs-src@freebsd.org
Subject: Re: cvs commit: src/sys/amd64/conf NOTES src/sys/i386/conf NOTES
	src/sys/pc98/conf NOTES
X-BeenThere: cvs-all@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: CVS commit messages for the entire tree <cvs-all.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-all>,
	<mailto:cvs-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-all>
List-Post: <mailto:cvs-all@freebsd.org>
List-Help: <mailto:cvs-all-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-all>,
	<mailto:cvs-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 23 Feb 2005 08:58:15 -0000

On Wed, Feb 23, 2005 at 10:36:39AM +0200, Ruslan Ermilov wrote:
R> > Actually, the block with error can be safely removed from kern_poll.c before
R> > we polish our patches. There is no problem running SMP + polling. Probably,
R> > there were some problems in the past.
R> > 
R> > I think the block can be removed now and MFCed before 5.4-RELEASE. I'm quite
R> > sure that our patches for Giant-less polling will not be MFCed soon.
R> > 
R> Take a look at http://info.iet.unipi.it/~luigi/polling/, the last
R> paragraph on the page.  I believe it still holds true these days.

I completely agree here, but this is not a reason to deny such configuration.
What is nice in polling, is that some amount of CPU resources is reserved
for userland. So, if box is not doing a pure forwarding job, but is a web
server which is loaded both by userland applications and interrupts, a setup
with polling and SMP will be very appropriate.

-- 
Totus tuus, Glebius.
GLEBIUS-RIPN GLEB-RIPE