From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1CvNEM-0006N3-Jz for qemu-devel@nongnu.org; Sun, 30 Jan 2005 17:07:42 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1CvNEE-0006GV-GN for qemu-devel@nongnu.org; Sun, 30 Jan 2005 17:07:34 -0500 Received: from [129.104.30.34] (helo=mx1.polytechnique.org) by monty-python.gnu.org with esmtp (Exim 4.34) id 1CvMwV-0001Wq-4g for qemu-devel@nongnu.org; Sun, 30 Jan 2005 16:49:15 -0500 Message-ID: <41FD5690.2020605@bellard.org> Date: Sun, 30 Jan 2005 22:50:08 +0100 From: Fabrice Bellard MIME-Version: 1.0 Subject: Re: [Qemu-devel] qemu-fast target removal ? References: <41FC04A8.5090308@bellard.org> <20050130204619.GA14598@mail.13thfloor.at> In-Reply-To: <20050130204619.GA14598@mail.13thfloor.at> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Herbert Poetzl , qemu-devel@nongnu.org Herbert Poetzl wrote: > I would _really_ appreciate not to spend almost > three times the amount of time and a lot more > of cpu power to wait for the kernel to boot ... I will just disable its compilation by default, but the code will still be there for some time, so you will be able to enable it with the --target-list option. >>This target is replaced by the standard QEMU with soft mmu support. The >>QEMU Kernel Acceleration Layer which will be unveiled very soon will >>give much more performance while working with unpatched guest OSes. > > > any numbers for that? will it be compareable? All I can say is that for Linux or Windows user code (such as nbench), the performance is the same as the native one. > what will it require? A small host kernel module is needed. It works with 2.4 and 2.6 Linux kernels. Fabrice.