From owner-freebsd-net@FreeBSD.ORG Mon Mar 5 19:58:45 2007 Return-Path: X-Original-To: freebsd-net@FreeBSD.org Delivered-To: freebsd-net@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 5B1C516A401; Mon, 5 Mar 2007 19:58:45 +0000 (UTC) (envelope-from gallatin@cs.duke.edu) Received: from duke.cs.duke.edu (duke.cs.duke.edu [152.3.140.1]) by mx1.freebsd.org (Postfix) with ESMTP id 1BF6113C428; Mon, 5 Mar 2007 19:58:45 +0000 (UTC) (envelope-from gallatin@cs.duke.edu) Received: from grasshopper.cs.duke.edu (grasshopper.cs.duke.edu [152.3.145.30]) by duke.cs.duke.edu (8.14.0/8.14.0) with ESMTP id l25JwiEx005532 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 5 Mar 2007 14:58:44 -0500 (EST) Received: (from gallatin@localhost) by grasshopper.cs.duke.edu (8.12.9p2/8.12.9/Submit) id l25JwdXR056142; Mon, 5 Mar 2007 14:58:39 -0500 (EST) (envelope-from gallatin) From: Andrew Gallatin MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <17900.30319.384789.754149@grasshopper.cs.duke.edu> Date: Mon, 5 Mar 2007 14:58:39 -0500 (EST) To: Robert Watson In-Reply-To: <20070305182755.S31701@fledge.watson.org> References: <45E8276D.60105@freebsd.org> <17900.24574.751134.397740@grasshopper.cs.duke.edu> <20070305182755.S31701@fledge.watson.org> X-Mailer: VM 6.75 under 21.1 (patch 12) "Channel Islands" XEmacs Lucid Cc: freebsd-net@FreeBSD.org, freebsd-current@FreeBSD.org, Andre Oppermann , kmacy@FreeBSD.org, jhb@FreeBSD.org Subject: Re: New optimized soreceive_stream() for TCP sockets, proof of concept X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Mar 2007 19:58:45 -0000 One last note.. It looks like SCHED_4BSD does a decent job (on my setup) w/o CPU binding, but SCHED_ULE requires CPU binding to get good performance. W/o CPU binding, the best bandwidth I see using SCHED_ULE is around 5.3Gb/s with one CPU mostly idle.. With CPU binding, it is roughly 9Gb/s. Drew