From owner-freebsd-hardware@FreeBSD.ORG Thu Nov 13 09:37:09 2008 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4A3531065690 for ; Thu, 13 Nov 2008 09:37:09 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from QMTA03.emeryville.ca.mail.comcast.net (qmta03.emeryville.ca.mail.comcast.net [76.96.30.32]) by mx1.freebsd.org (Postfix) with ESMTP id 2C4118FC13 for ; Thu, 13 Nov 2008 09:37:08 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from OMTA12.emeryville.ca.mail.comcast.net ([76.96.30.44]) by QMTA03.emeryville.ca.mail.comcast.net with comcast id eZa41a0050x6nqcA3Zd8PB; Thu, 13 Nov 2008 09:37:08 +0000 Received: from koitsu.dyndns.org ([69.181.141.110]) by OMTA12.emeryville.ca.mail.comcast.net with comcast id eZd81a0012P6wsM8YZd8W2; Thu, 13 Nov 2008 09:37:08 +0000 X-Authority-Analysis: v=1.0 c=1 a=nlX-cntIBRQA:10 a=z-gTsQe774kA:10 a=QycZ5dHgAAAA:8 a=3OPnk5vVGRRzsAaJBpYA:9 a=DNucRc215qdeSwTDK7_kNCUOyZ4A:4 a=EoioJ0NPDVgA:10 a=LY0hPdMaydYA:10 Received: by icarus.home.lan (Postfix, from userid 1000) id C61235C19; Thu, 13 Nov 2008 01:37:07 -0800 (PST) Date: Thu, 13 Nov 2008 01:37:07 -0800 From: Jeremy Chadwick To: Won De Erick Message-ID: <20081113093707.GA16322@icarus.home.lan> References: <704830.24415.qm@web45815.mail.sp1.yahoo.com> <20081113072610.GA13698@icarus.home.lan> <576266.41435.qm@web45812.mail.sp1.yahoo.com> <20081113074602.GB13938@icarus.home.lan> <366483.43588.qm@web45807.mail.sp1.yahoo.com> <20081113081936.GA14779@icarus.home.lan> <527634.76455.qm@web45804.mail.sp1.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <527634.76455.qm@web45804.mail.sp1.yahoo.com> User-Agent: Mutt/1.5.18 (2008-05-17) Cc: freebsd-hardware@freebsd.org Subject: Re: IRQ31 and IRQ32 on HPDL585 running FreeBSD 7.0 are consuming HIGH CPU usage X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 13 Nov 2008 09:37:09 -0000 On Thu, Nov 13, 2008 at 01:34:01AM -0800, Won De Erick wrote: > Jeremy Chadwick wrote: > > >> On Thu, Nov 13, 2008 at 12:07:37AM -0800, Won De Erick wrote: > >> Noted on this, I will update you through this thread. > >> > >> However is there any possibility of the following: > >> > >> > I don't know if there's a way to split the interrupt request for each bce's Rx and Tx, > >> > which means a total of four IRQs, and eventually four cores (or 4 CPUs) > >> > for the transactions. With this way, the IDLE processors would be utilized. > >> > >> What I mean here is, for the two interfaces: > >> > >> one IRQ for bce0 Rx > >> one IRQ for bce0 Tx > >> one IRQ for bce1 Rx > >> one IRQ for bce1 Tx > > > I can't even begin to imagine how this would be possible on any NIC. > > Yeah, but I can't also imagine how beneficial this idea when implemented. Right -- me either. What you just said begs the question. :-) -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |