From owner-cvs-all@FreeBSD.ORG  Tue Sep  6 17:58:51 2005
Return-Path: <owner-cvs-all@FreeBSD.ORG>
X-Original-To: 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 A650016A434
	for <cvs-all@FreeBSD.org>; Tue,  6 Sep 2005 17:58:51 +0000 (GMT)
	(envelope-from nate@root.org)
Received: from ylpvm12.prodigy.net (ylpvm12-ext.prodigy.net [207.115.57.43])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 22CE143D46
	for <cvs-all@FreeBSD.org>; Tue,  6 Sep 2005 17:58:50 +0000 (GMT)
	(envelope-from nate@root.org)
Received: from pimout5-ext.prodigy.net (pimout5-int.prodigy.net [207.115.4.21])
	by ylpvm12.prodigy.net (8.12.10 outbound/8.12.10) with ESMTP id
	j86HwgmY006824
	for <cvs-all@FreeBSD.org>; Tue, 6 Sep 2005 13:58:45 -0400
X-ORBL: [67.119.74.222]
Received: from [10.0.0.33] (adsl-67-119-74-222.dsl.sntc01.pacbell.net
	[67.119.74.222])
	by pimout5-ext.prodigy.net (8.13.4 outbound domainkey aix/8.13.4) with
	ESMTP id j86HwhsC121530; Tue, 6 Sep 2005 13:58:46 -0400
Message-ID: <431DD8D2.6020006@root.org>
Date: Tue, 06 Sep 2005 10:58:42 -0700
From: Nate Lawson <nate@root.org>
User-Agent: Mozilla Thunderbird 1.0.6 (X11/20050723)
X-Accept-Language: en-us, en
MIME-Version: 1.0
To: Scott Long <scottl@samsco.org>
References: <200509051602.j85G2Bpo090258@repoman.freebsd.org>
	<20050905094341.A23343@xorpc.icir.org>
	<20050905180050.GB41863@cell.sick.ru>
	<20050905141451.A27290@xorpc.icir.org>
	<20050906061828.GQ41863@cell.sick.ru>
	<20050906012755.B34182@xorpc.icir.org>
	<20050906112608.N51625@fledge.watson.org>
	<431DC64E.9010903@root.org> <431DCEFB.9030005@samsco.org>
In-Reply-To: <431DCEFB.9030005@samsco.org>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: src-committers@FreeBSD.org, Luigi Rizzo <rizzo@icir.org>,
	cvs-all@FreeBSD.org, Gleb Smirnoff <glebius@FreeBSD.org>,
	Robert Watson <rwatson@FreeBSD.org>, cvs-src@FreeBSD.org
Subject: Re: cvs commit: src/sys/kern kern_poll.c
X-BeenThere: cvs-all@freebsd.org
X-Mailman-Version: 2.1.5
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: Tue, 06 Sep 2005 17:58:52 -0000

Scott Long wrote:
> Nate Lawson wrote:
>> For the case of storage, you actually have a better model since all 
>> transactions are initiated from the host (as opposed to packet 
>> arrivals).  This gives an easy metric for a dynamic polling threshold 
>> -- if you have a deep queue of outstanding requests and one completes, 
>> you should poll a little more than normal.
>>
> 
> Except for target mode.

Never heard of that before.

-- 
Nate