From owner-freebsd-current@FreeBSD.ORG Wed Apr 2 03:23:25 2003 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 C443C37B401 for ; Wed, 2 Apr 2003 03:23:25 -0800 (PST) Received: from mailout02.sul.t-online.com (mailout02.sul.t-online.com [194.25.134.17]) by mx1.FreeBSD.org (Postfix) with ESMTP id 02F0743FA3 for ; Wed, 2 Apr 2003 03:23:25 -0800 (PST) (envelope-from Alexander@Leidinger.net) Received: from fwd10.sul.t-online.de by mailout02.sul.t-online.com with smtp id 190gKi-00070n-05; Wed, 02 Apr 2003 13:23:08 +0200 Received: from Andro-Beta.Leidinger.net (520065502893-0001@[217.83.28.130]) by fmrl10.sul.t-online.com with esmtp id 190gKT-15h3TMC; Wed, 2 Apr 2003 13:22:53 +0200 Received: from Magelan.Leidinger.net (Magelan [192.168.1.1]) h32BMqOq096424; Wed, 2 Apr 2003 13:22:52 +0200 (CEST) (envelope-from Alexander@Leidinger.net) Received: from Magelan.Leidinger.net (netchild@localhost [127.0.0.1]) by Magelan.Leidinger.net (8.12.7/8.12.7) with SMTP id h32BMqGc002209; Wed, 2 Apr 2003 13:22:52 +0200 (CEST) (envelope-from Alexander@Leidinger.net) Date: Wed, 2 Apr 2003 13:22:52 +0200 From: Alexander Leidinger To: Terry Lambert Message-Id: <20030402132252.23f4e6f3.Alexander@Leidinger.net> In-Reply-To: <3E8A9101.66FE4135@mindspring.com> References: <20030402070515.40396.qmail@web41803.mail.yahoo.com> <3E8A9101.66FE4135@mindspring.com> X-Mailer: Sylpheed version 0.8.9claws (GTK+ 1.2.10; i386-portbld-freebsd5.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Sender: 520065502893-0001@t-dialin.net cc: Jeff Roberson cc: csujun@21cn.com cc: current@freebsd.org Subject: Re: libthr and 1:1 threading. 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: Wed, 02 Apr 2003 11:23:26 -0000 On Tue, 01 Apr 2003 23:28:01 -0800 Terry Lambert wrote: > The primary performance reasoning behind a 1:1 kernel threading > implementation, relative to the user space single kernel entry > scheduler in the libc_r implementation is SMP scalability for > threaded applications. I think Jeff (or someone else?) said, that some web browsers gain "something" too (serialization issues with libc_r)? I had the impression that this also applies to UP systems. Do I misremember this? If not, does it not apply to UP systems as well? Bye, Alexander. -- Actually, Microsoft is sort of a mixture between the Borg and the Ferengi. http://www.Leidinger.net Alexander @ Leidinger.net GPG fingerprint = C518 BC70 E67F 143F BE91 3365 79E2 9C60 B006 3FE7