From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomasz Chmielewski Subject: Re: [ANNOUNCE] kvm-guest-drivers-windows-2 Date: Wed, 14 May 2008 17:49:02 +0200 Message-ID: <482B09EE.20903@wpkg.org> 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 To: dor.laor@qumranet.com Return-path: 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 Dor Laor schrieb: (...) >> - 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. > >> - 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+-. Just generally, how Windows PV drivers help to improve network performance. So, a PV network driver can do about 700Mb/s, and an emulated NIC can do about 600 Mb/s, Windows guest to host? That would be about 20% improvement? -- Tomasz Chmielewski http://wpkg.org ------------------------------------------------------------------------- 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/