From mboxrd@z Thu Jan 1 00:00:00 1970 From: Muli Ben-Yehuda Subject: Re: [ANNOUNCE] kvm-guest-drivers-windows-2 Date: Wed, 14 May 2008 18:39:12 +0300 Message-ID: <20080514153912.GA7129@il.ibm.com> References: <482AEE8D.7000608@wpkg.org> <1210777782.24261.829.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel@lists.sourceforge.net, Tomasz Chmielewski To: Dor Laor Return-path: Content-Disposition: inline In-Reply-To: <1210777782.24261.829.camel@localhost.localdomain> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces@lists.sourceforge.net Errors-To: kvm-devel-bounces@lists.sourceforge.net List-Id: kvm.vger.kernel.org On Wed, May 14, 2008 at 06:09:42PM +0300, Dor Laor wrote: > > Do you have any performance numbers for networking to see how it > > compares to the real hardware? > > > > - Linux host (or: real Windows running on that host) > > For host you can measure yourself but for Linux guest (to host) it > currently do about 1G, using TSO (work in progress) it can do 2.5G, > and there is also work in progress to make the kernel know virtio > through the tap interface which will further boot performance. ... with what kind of CPU utilization? > > - PV Windows (network driver) > > About 700Mb+-, there is currently extra copy that we need to omit. > Thanks for Anthony, we just have to change the driver. Same question (although it's less interesting if we can't even saturate the pipe). > > - non-PV Windows > > What do you mean? Other fully emulated nics like e1000? > It does not perform as pv but depending on the guest it can do up to > 600Mb+-. Same question (although again it's less interesting if we can't even saturate the pipe). Cheers, Muli ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/