From owner-freebsd-performance@FreeBSD.ORG Thu Jan 6 15:09:04 2005 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 85E0716A4CE for ; Thu, 6 Jan 2005 15:09:04 +0000 (GMT) Received: from f19.mail.ru (f19.mail.ru [194.67.57.49]) by mx1.FreeBSD.org (Postfix) with ESMTP id 39EBF43D45 for ; Thu, 6 Jan 2005 15:09:04 +0000 (GMT) (envelope-from shmukler@mail.ru) Received: from mail by f19.mail.ru with local id 1CmZG2-000BpE-00; Thu, 06 Jan 2005 18:09:02 +0300 Received: from [24.185.78.105] by mac.mail.ru with HTTP; Thu, 06 Jan 2005 18:09:02 +0300 From: Igor Shmukler To: Martin P.Hellwig Mime-Version: 1.0 X-Mailer: mPOP Web-Mail 2.19 X-Originating-IP: [24.185.78.105] Date: Thu, 06 Jan 2005 18:09:02 +0300 In-Reply-To: <41DD32C0.40608@xs4all.nl> Content-Type: text/plain; charset=koi8-r Content-Transfer-Encoding: 8bit Message-Id: cc: freebsd-performance@FreeBSD.org Subject: Re[2]: Benchmark: NetBSD 2.0 beats FreeBSD 5.3 X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: Igor Shmukler List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 06 Jan 2005 15:09:04 -0000 Hi, I do not agree with most authors regarding UP vs. MP performance. There is a benchmark suite (not first microbenchmark suite) that shows resource allocation under NetBSD is faster. That's all there is to it. Not more or less... By performance we mean an array of properties for me it starts with throughput. To measure performace we would have run things like TPC-C and other workload simulation tests. Back in a day Linux was being tuned to show better LMBench numbers. Everyone knows what happened with that. Assuming that root of a problem is number of CPUs is not warranted, unless someone actually did comparison and concluded that NetBSD resource allocation does not scale across multiple processors. Let's take things for what they are.A microbenchmark shows that some NetBSD allocators scale better. A microbenchmark cannot give any results that could be used to realistically assess an overall performance. igor.