Re: [PATCH 0/15] KVM: optimize for MMIO handled

Takuya Yoshikawa
2011-06-08T08:29:29Z

On Wed, 08 Jun 2011 14:22:36 +0800
Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> wrote:

> On 06/08/2011 11:47 AM, Takuya Yoshikawa wrote:
>
> >>> Sure, KVM guest is the client, and it uses e1000 NIC, and uses NAT
> >>> network connect to the netperf server, the bandwidth of our network
> >>> is 100M.
> >>>
> >
> > I see the reason, thank you!
> >
> > I used virtio-net and you used e1000.
> > You are using e1000 to see the MMIO performance change, right?
> >
>
> Hi Takuya,
>
> Now, i have done the performance test for virtio-net, the performance is
> improved very little, and it is not *regression* ;-)
>
> The reason is, MMIO generated by virtio-net is very very little.
>

Yes, so I thought you had chosen e1000 for this test :)

Thanks,
Takuya