Re: [Qemu-devel] VirtIO Net driver for Ubuntu 11.10

[Charles . Tsai-蔡清海-研究發展部]

Yes, I saw that page too. But our current kernel version meets the kernel 
requirement.
Why do we need to upgrade it?

-----Original Message-----
From: Dunrong Huang [mailto:address@hidden 
Sent: Monday, June 04, 2012 2:26 PM
To: Charles.Tsai-蔡清海-研究發展部
Cc: address@hidden
Subject: Re: [Qemu-devel] VirtIO Net driver for Ubuntu 11.10

2012/6/4 Charles.Tsai-蔡清海-研究發展部 <address@hidden>:
> I am just curious about this issue. Is there any document mentioning the 
> lowest version of the kernel to be supported by VirtIO?
>
See http://www.linux-kvm.org/page/Virtio
>
> -----Original Message-----
> From: Dunrong Huang [mailto:address@hidden
> Sent: Monday, June 04, 2012 2:17 PM
> To: Charles.Tsai-蔡清海-研究發展部
> Cc: address@hidden
> Subject: Re: [Qemu-devel] VirtIO Net driver for Ubuntu 11.10
>
> 2012/6/4 Charles.Tsai-蔡清海-研究發展部 <address@hidden>:
>> The kernel version is 3.0.0.12
>> The Qemu version is 1.0.0(we upgraded it)
>>
>> What version of kernel do we need to upgrade?
> The latest version is v3.4, so you can try and upgrade to v3.1, v3.2 or v3.3, 
> and test it.
>>
>> -----Original Message-----
>> From: mathslinux [mailto:address@hidden
>> Sent: Monday, June 04, 2012 2:03 PM
>> To: Charles.Tsai-蔡清海-研究發展部
>> Cc: address@hidden
>> Subject: Re: [Qemu-devel] VirtIO Net driver for Ubuntu 11.10
>>
>> Charles.Tsai-蔡清海-研究發展部 <address@hidden> writes:
>>
>>> We recently ran an Ubuntu 11.10 VM which was installed with VirtIO NIC 
>>> driver. The VirtIO net driver came from the Ubuntu's default package. The 
>>> VM we installed was configured as a bridge mode. When we ran the Iperf test 
>>> against the VM, the network interface of the VM was fairly unstable. 
>>> Sometimes, the network interface of the VM could not receive the packets 
>>> and we needed to bright the network interface down and up in order to make 
>>> it work. After we replaced the VirtIo Net driver with ne2k driver and it 
>>> worked quite stably now.
>>>
>>> We know that the performance of virtIO is much better than ne2k in virtual 
>>> environment. We would like to use virtio driver instead. If this is the 
>>> virtio driver issue, can you tell us where to get the latest virtIO driver 
>>> for Ubuntu VM? Otherwise, tell us how to make the virtio net driver work in 
>>> Ubuntu VM if you have ever had similar issue before.
>>>
>>> The version of Qemu installed in Ubuntu is 0.14.1.
>>>
>> The virtio driver is implemented in the guest operating system, it's a 
>> kernel module, so what is your kernel version? Maybe you need a kernel of 
>> higher version.
>
>

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