From owner-freebsd-questions Fri Mar 22 15:37: 9 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mailhub.yumyumyum.org (dsl092-171-091.wdc1.dsl.speakeasy.net [66.92.171.91]) by hub.freebsd.org (Postfix) with SMTP id 183A637B404 for ; Fri, 22 Mar 2002 15:36:58 -0800 (PST) Received: (qmail 399 invoked from network); 22 Mar 2002 23:36:56 -0000 Received: from dsl092-171-091.wdc1.dsl.speakeasy.net (66.92.171.91) by dsl092-171-091.wdc1.dsl.speakeasy.net with SMTP; 22 Mar 2002 23:36:56 -0000 Date: Fri, 22 Mar 2002 18:36:56 -0500 (EST) From: Kenneth Culver To: Roger Kaputtnik Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Changes in FreeBSD 5 ? In-Reply-To: <20020322233538.A44567@encephalon.de> Message-ID: <20020322183150.M369-100000@alpha.yumyumyum.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG I'm sure somebody will correct me if I'm wrong, but I think the main changes include: 1) the SMPng project. This basically makes it so that SMP machines can run the kernel on more than one CPU at a time. This should eventually increase performance on SMP machines. 2) The KSE project. This basically reworks how threaded processes are handled and introduces a form of kernel threading. It is not EXACTLY kernel threading, but to simplify the explanation, this is what I'm calling it. It'll basically improve the performance of threaded apps. 3) As far as I know, 5.0's kernel threads will be preempted. (This is basically a pre-empted kernel. Right now only userland processes can are using preempted multitasking) There are tons of other changes, but I think these are the major ones... maybe someone can add to this/correct me... Ken On Fri, 22 Mar 2002, Roger Kaputtnik wrote: > Hi. > > Can someone please tell me what kind of changes will be in FreeBSD 5 ? > What will be the main difference to the 4.x branch ? > Or is there a webpage, URL ? > > Thanks a lot. > > Roger Kaputtnik > -- > encephalon.de > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message