From owner-freebsd-current  Tue Apr 17 19:40: 2 2001
Delivered-To: freebsd-current@freebsd.org
Received: from a.mx.everquick.net (a.mx.everquick.net [216.89.137.3])
	by hub.freebsd.org (Postfix) with ESMTP id 385C437B424
	for <current@FreeBSD.ORG>; Tue, 17 Apr 2001 19:39:58 -0700 (PDT)
	(envelope-from eddy+public+spam@noc.everquick.net)
Received: from localhost (eddy@localhost)
	by a.mx.everquick.net (8.10.2/8.10.2) with ESMTP id f3I2deW15016;
	Wed, 18 Apr 2001 02:39:40 GMT
X-EverQuick-No-Abuse: Report any e-mail abuse to <abuse@noc.everquick.net>
Date: Wed, 18 Apr 2001 02:39:39 +0000 (GMT)
From: "E.B. Dreger" <eddy+public+spam@noc.everquick.net>
To: Matt Dillon <dillon@earth.backplane.com>
Cc: Alfred Perlstein <bright@wintelcom.net>,
	Greg Lehey <grog@lemis.com>, "Justin T. Gibbs" <gibbs@scsiguy.com>,
	Doug Barton <DougB@DougBarton.net>,
	"current @ freebsd . org" <current@FreeBSD.ORG>
Subject: Re: Kernel preemption, yes or no? (was: Filesystem gets a huge
 performance boost)
In-Reply-To: <200104180234.f3I2Yuq17047@earth.backplane.com>
Message-ID: <Pine.LNX.4.20.0104180238240.15004-100000@www.everquick.net>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Sender: owner-freebsd-current@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG

> Date: Tue, 17 Apr 2001 19:34:56 -0700 (PDT)
> From: Matt Dillon <dillon@earth.backplane.com>
> 
> Yes.  Also NICs usually have circular buffers for packets so, really,
> only one cpu can be processing a particular NIC's packets at any given
> moment.

We could always have a mutex for each NIC's ring buffer...

*ducking and running*

Sorry... couldn't resist. :-)


Eddy

---------------------------------------------------------------------------

Brotsman & Dreger, Inc.
EverQuick Internet / EternalCommerce Division

Phone: (316) 794-8922

---------------------------------------------------------------------------


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-current" in the body of the message