From owner-freebsd-current@FreeBSD.ORG Sat Oct 16 00:48:46 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 52CA216A4CE for ; Sat, 16 Oct 2004 00:48:46 +0000 (GMT) Received: from mgw-x2.nokia.com (mgw-x2.nokia.com [131.228.20.22]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4B8C943D41 for ; Sat, 16 Oct 2004 00:48:45 +0000 (GMT) (envelope-from Venkatesh.Babu@nokia.com) Received: from esdks002.ntc.nokia.com (esdks002.ntc.nokia.com [172.21.138.121])i9G0miF07364 for ; Sat, 16 Oct 2004 03:48:44 +0300 (EET DST) X-Scanned: Sat, 16 Oct 2004 03:48:31 +0300 Nokia Message Protector V1.3.31 2004060815 - RELEASE Received: (from root@localhost) by esdks002.ntc.nokia.com (8.12.9/8.12.9) id i9G0mVCs028098 for ; Sat, 16 Oct 2004 03:48:31 +0300 Received: from mgw-int1.ntc.nokia.com (172.21.143.96) by esdks002.ntc.nokia.com 00qois8W; Sat, 16 Oct 2004 03:48:29 EEST Received: from daebh001.NOE.Nokia.com (daebh001.americas.nokia.com [10.241.35.121])i9G0mIa21112 for ; Sat, 16 Oct 2004 03:48:18 +0300 (EET DST) Received: from mvebe001.NOE.Nokia.com ([172.18.140.37]) by daebh001.NOE.Nokia.com with Microsoft SMTPSVC(5.0.2195.6881); Fri, 15 Oct 2004 19:48:17 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.0.6487.1 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Date: Fri, 15 Oct 2004 17:48:16 -0700 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: smp problem with 8 CPU's Thread-Index: AcSzEML/8aod1M30TI2rTeHnUlwAQgABsKIA From: To: X-OriginalArrivalTime: 16 Oct 2004 00:48:17.0317 (UTC) FILETIME=[D3433D50:01C4B319] X-Mailman-Approved-At: Sat, 16 Oct 2004 12:07:25 +0000 Subject: Multiprocessing for network protocol stack 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: Sat, 16 Oct 2004 00:48:46 -0000 We have a proprietary OS, which is a variant of FreeBSD 2.x and has = extensive changes to protocol stack. We are planning to migrate to the = latest FreeBSD like 4.x or 5.x to get multiprocessor support. So I am = trying to evaluate these options. How good the network protocol stack takes advantages of the multi = processor in 5.x ? What parallelizing paradigm (Connection level parallelism / Packet = level parallelism / processor per message / predictable parallel = protocol processing) is implemented for network protocol stack (like = TCP/IP) in BSD 5.x ? Are there any benchmarks on the performance analysis of network = protocol stack on multiprocessor system ? Thanks, VBabu=20