From owner-freebsd-current@FreeBSD.ORG Fri Oct 8 16:18:17 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5671916A4D6; Fri, 8 Oct 2004 16:18:17 +0000 (GMT) Received: from ox.eicat.ca (ox.eicat.ca [66.96.30.35]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1E9B543D1D; Fri, 8 Oct 2004 16:18:17 +0000 (GMT) (envelope-from dgilbert@daveg.ca) Received: by ox.eicat.ca (Postfix, from userid 66) id B6131C4AC; Fri, 8 Oct 2004 12:18:16 -0400 (EDT) Received: by canoe.dclg.ca (Postfix, from userid 101) id B8FD11D1E37; Fri, 8 Oct 2004 12:18:11 -0400 (EDT) From: David Gilbert MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16742.48579.673252.78665@canoe.dclg.ca> Date: Fri, 8 Oct 2004 12:18:11 -0400 To: Mike Tancsa In-Reply-To: <6.1.2.0.0.20041008120745.106ae7b0@64.7.153.2> References: <16742.40802.187425.402461@canoe.dclg.ca> <6.1.2.0.0.20041008120745.106ae7b0@64.7.153.2> X-Mailer: VM 7.17 under 21.5 (beta17) "chayote" (+CVS-20040321) XEmacs Lucid cc: freebsd-current@freebsd.org cc: freebsd-stable@freebsd.org cc: David Gilbert Subject: Re: Packet passing performance study on exotic hardware. X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Oct 2004 16:18:17 -0000 >>>>> "Mike" == Mike Tancsa writes: Mike> At 10:08 AM 08/10/2004, David Gilbert wrote: >> Right out of the box, FreeBSD 5.3 (with polling) passed about 200 >> kpps. net.isr.enable=1 increased that without polling to about 220 Mike> Did you have kern.polling.idle_poll at 0 or 1 ? In my tests a Mike> few weeks ago this seemed to make a difference, but the load avg Mike> gets messed up. Also, HZ does seem to make a difference at Mike> least in my tests on BETA5. I can confirm the HZ not making a sizable difference (although I believe it cuts polling latency under ligher load, so we used 10000 by default and we tested 1000). Idle_poll is default 1, I'm not positive we tested 0. I don't think there is much idle time here. Dave. -- ============================================================================ |David Gilbert, Independent Contractor. | Two things can only be | |Mail: dave@daveg.ca | equal if and only if they | |http://daveg.ca | are precisely opposite. | =========================================================GLO================