From mboxrd@z Thu Jan  1 00:00:00 1970
From: Kai Zimmer <kai@zimmer.net>
Subject: Re: Bandwith limitation with KVM VMs
Date: Tue, 04 Aug 2009 12:05:37 +0200
Message-ID: <4A7807F1.4040606@zimmer.net>
References: <20090803163205.GJ23503@defiant.freesoftware.org> <4A7715CC.7030901@gmail.com> <20090804011742.GL23503@defiant.freesoftware.org> <4A77A48A.1060606@gmail.com> <20090804094825.GM23503@defiant.freesoftware.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-15
Content-Transfer-Encoding: 7bit
To: dbareiro@gmx.net, KVM General <kvm@vger.kernel.org>
Return-path: <kvm-owner@vger.kernel.org>
Received: from smtprelay0145.hostedemail.com ([216.40.44.145]:34735 "EHLO
	smtprelay.hostedemail.com" rhost-flags-OK-OK-OK-FAIL)
	by vger.kernel.org with ESMTP id S932725AbZHDKFm (ORCPT
	<rfc822;kvm@vger.kernel.org>); Tue, 4 Aug 2009 06:05:42 -0400
In-Reply-To: <20090804094825.GM23503@defiant.freesoftware.org>
Sender: kvm-owner@vger.kernel.org
List-ID: <kvm.vger.kernel.org>

Daniel Bareiro schrieb:
> root@ss02:~# ps ax|grep aps2|grep -v grep
> 28711 ?        Sl   8171:06 kvm -hda /dev/vm/aps2-raiz -hdb \
>   /dev/vm/aps2-space -hdc /dev/vm/aps2-index -hdd /dev/vm/aps2-cache -m \
>   4096 -smp 4 -net nic,vlan=0,macaddr=00:16:3E:00:00:27 -net tap \
>   -daemonize -vnc :5 -k es -localtime -monitor \
>   telnet:localhost:4005,server,nowait -serial \
>   telnet:localhost:4045,server,nowait \
> 
> According to I was reading, it would be necessary to use with -net the
> option model=virtio, so I would not be using virtio with the VMs.

The default NIC is a rtl8139 which 10/100 MBit. Use
qemu-kvm -net nic,model=?
for a list of available devices for your target.
"model=virtio" will probably give you best performance, if the guest OS
supports it - try it out.

best regards,
Kai