From mboxrd@z Thu Jan 1 00:00:00 1970 From: Haydn Solomon Subject: Re: virtual machines network goes 100Mbit when interface is Gbit Date: Fri, 14 Mar 2008 10:22:33 -0500 Message-ID: <47DA9839.7080607@gmail.com> References: <47DA819D.3050907@Nosys.net> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Cc: lista kvm-devel To: Miguel Araujo Return-path: In-Reply-To: <47DA819D.3050907@Nosys.net> 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 What emulated nic are you using? I think only the e1000 emulated nic = supports 1 GB. Miguel Araujo wrote: > Hello all, > > I'm testing the last kvm version, 62. I was doing an iperf benchmark to = > test the network performance in a Feisty virtual machine and I got = > values surround 100Mbits when my card is actually 1Gbit. The testing = > environment is conformed by 2 machines, both with Gbit interfaces. The = > vm in kvm is running in server mode, the other (not virtualized one) is = > the client. The vm interface is going to a bridge called br0. Ethtool = > says the interface is running 100Mbits but it doesn't let me change the = > speed or any other parameter in the vm. > > I can't either change tap0 parameters in kvm host. =BFIs anyone having th= e = > same issue?=BFam I forgetting something? > > Thanks for your time in advanced, > Miguel > > ------------------------------------------------------------------------- > 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/ > _______________________________________________ > kvm-devel mailing list > kvm-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/kvm-devel > = ------------------------------------------------------------------------- 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/